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158 Cards in this Set
- Front
- Back
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Mechanical advantage
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Ratio of the output force of a machine to the input force
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Tension
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Forces along a parallel line pulling a way from the center
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Compression
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Forces along a parallel line pushing toward the center.
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Newton's 3rd Law
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Every action has an equal and opposite reaction
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Elastic Limit
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Maximum stress a material may be subjected and return to original shape
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Yield Point
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Intensity of stress beyond which the changing length increases rapidly with little if any increase in stress
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Ultimate tensile strength
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greatest stress that can be produced in a body before failure
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Safety factor (stress vs. strain)
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ultimate stress divided by allowable stress
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Jockey pump
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maintains minimum sprinkler operating pressure
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Pyrophoric
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Materials that ignite spontaneously when exposed to air
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Hypergolic
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a violent reaction which occurs when two materials come in contact with each other
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Pyrolysis
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The process where materials decompose in the presence of heat
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Deflagration
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A rapidly burning fire which produces flame speed that travels slower than the speed of sound
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Sliding formula (metric)
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V = 16 x sqrt(us)
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Sliding formula (US)
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V = sqrt (30 us)
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Physiology
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Function of the body
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Psychology
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behavior
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ergonomics
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study of human characteristics for the design of living and work environment
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Biomechanics
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Actions, reactions (Newtonian physics)
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Absorption
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Capture of a gas or vapor by passing an airstream containing the gas or vapor through a liquid
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Adsorption
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retention of gaseous substance chemically unchanged on the surface of a sorbent (e.g. charcoal)
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Pure risk
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Insurable - the expectation of an event which will produce a loss should it occur
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Speculative risk
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Uninsurable - the result of an event which will produce a gain or loss should it occur
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Transfer of risk
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movement of the risk to an insurance company or leasing company
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Loss control / loss prevention
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reduce losses through inspections, training, etc.
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Risk Avoidance
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get out of that part of business
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Diversification of risk
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multiple locations so loss of one does not cause total failure
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Captive insurance
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wholly owned subsidiary
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Mutual insurance company
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Policy holders are owners
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5 components of Risk Management processes
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Risk identification, Risk analysis, risk reduction, risk financing and risk administration
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Abraham Maslow
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Hierarchy of needs
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Chris Argyris
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Maturity theory
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Douglas McGregor
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Theory x ( ee's are lazy); theory Y (people like to work)
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BF Skinner
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rewarded behaviors increase
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Frank Gilbreth
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Motion and time study - therbligs are basic human motions
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Frederick Herzberg
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Difference between motivation (intangibles - peer review, recognition) and hygiene / maintenance factors (pay, perks)
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Frederick W. Taylor
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Father of Scientific Management
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rituals
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ceremonial acts that convey organizational values as well as how employees function
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Jargon
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Language of the organization
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Norms
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Rules of the game, often modeled after key leaders
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Values
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principles designed to guide employee behavior
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Unity of command
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Each employee reports to only one individual
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Span of control
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the number of employees reporting to one individual
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Vertical integration
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the company owns all aspects of the production process
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Horizontal integration
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the company owns little or none of the production process
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Pareto Principle
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distinguishing the significant few from the trivial many
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Delphi technique
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decision reached without group ever meeting
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Random sample
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every individual in the universe has an equal and independent chance of selection
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Stratified sample
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same ratio(s) as total population
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Systematic sample
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Every nth item is sampled or sample at a regular interval
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Cluster sample
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intact group that has similar characteristics to the whole population
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coefficient of variation
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standard deviation divided by the mean
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Z-Score
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# of standard deviations from the mean
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Chi square test
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compares frequencies
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Coefficient of Variation
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compares the percent variations of tow or more groups by measures of central tendency (std dev. / mean)
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Coefficient Correlation
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determines the strength and direction of the relationship between two variables
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t test
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Compares sample group AVERAGE to the population
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Z score
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determines the location of a single score in the normal distribution, % or the area under a normal curve; the number of standard deviations from the mean
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Chi square
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determines if there if a statistically significant difference between observed and expected FREQUENCIES in a sample
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Class I, Div I
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Ignitable concentration not in closed container or system
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Compressed Gas Cylinder requirements
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ANSI/CGA V-1-1987
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Passenger elevator inspection frequency? Freight elevator?
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6 months. 12 months.
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The Organization for economic Co-operation and development (OECD)
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movement of interstate waste trade (in EU)
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Fault tree analysis
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uses DEDUCTIVE analysis. Starts with undesired event and how it can occur.
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THERP (Technique for Human Error Rate Prediction)
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System safety technique which calculates the probability of human operating errors
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PHA (preliminary hazard analysis)
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System safety technique which is the initial effort to identify potentially hazardous components within a system during the design phase
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FMEA (Failure Mode Effects Analysis)
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INDUCTIVE logic. System analysis technique which identifies the manner in which failures occur and investigates their impact upon one another as well as other parts of the system.
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Deductive logic
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General to specific
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Inductive logic
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Specific to general
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Hazard and Operability Study (HAZOP - 1910.119)
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Identifies potential hazards and deviations in plant operations from the design specifications and is carried out by a multidisciplinary team following a structure that includes a series of guide words
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System Safety Engineering Report (SSER)
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Production phase inputs that identifies and documents the hazards of the final product or system, provides definite conclusions about the safety integrity of the product and the manner in which specific hazards have been controlled
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System Safety Program Plan (SSPP)
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Identifies the tasks to be accomplished in the total safety program for the evolution of the system and is considered the key to a successful program.
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Fail-passive
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Will not allow equipment to continue to operate (fuse / circuit breaker)
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Fail-active
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emergency backups automatically activate
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Fail operational
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Will fail active or passive depending on the mode it's in (feedwater valve on boiler - if the burner is on or off determines if the valve should be open or closed)
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Boolean algebra
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the algebra of events
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How much force is required to keep a 10,000 pound steel sled moving across smooth ice if the surface area of the sled is about 6 square feet? The coefficient of kinetic friction between ice and steel is approximately 0.03.
A. 150 lbs B. 300 lbs C. 1800 lbs D. 21,600 lbs |
F = μN = 0.03(10,000 lbs) = 300 lbs.
The correct solution is B. |
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What is cognitive learning?
A. Development of attitudes feelings and preferences. B. Development of competence in the performance of a task. C. Acquiring information and concepts coupled with the ability to apply it to new situations. D. Development of resources to meet a specific need. |
Solution:
Affective learning is the fostering of attitudes, feelings and preferences. Behavioral learning is the development of competence in the performance of tasks, procedures, operations and techniques. Cognitive learning is the acquisition of information and concepts related to course content. The correct solution is C. |
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The city of Garner, NC held their annual fireworks display in an open park on July 3 this year. Numerous uniformed police officers and EMS personnel were on site including the Wake County mobile emergency command center. Somewhere between 15,000 and 20,000 persons attended the event. What was the purpose of having the EMS (emergency medical service) personnel at the event?
A. EMS personnel were there to eliminate the probability of injuries or illnesses of attendees. B. EMS personnel were there to lower the probability of severe injuries or illnesses of attendees. C. EMS personnel were there to eliminate the severity of injuries or illnesses of attendees. D. EMS personnel were there to minimize the severity of injuries or illnesses of attendees. |
Solution:
EMS personnel have the main function of providing emergency medical services. They were available to quickly treat injured or ill attendees thus helping to minimize their severity. It is impossible to eliminate the possibility of injuries or illnesses in such an event. The correct solution is D. |
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An industrial hygienist sampled for acetone at a printing facility. The air sample ran for 8 hours with an air flow of 500 ml per minute. The lab measured 42 mg of acetone on the sample. What is the measured air concentration of acetone at the printing facility?
A. 0.18 mg/m^3 B. 1.5 mg/m^3 C. 10.5 mg/m^3 D. 175 mg/m^3 |
Solution:
Concentration = 42 mg 8 hours x 60 min x500mlhour min Concentration = 175 mg/m3 The correct solution is D. |
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The probability of event A happening is 0.2. The probability of event B happening is 0.3. Events A and B are independent events. Event C will occur if either event A or event B happens. What is the probability of event C happening?
A. 0.20 B. 0.25 C. 0.44 D. 0.50 |
Solution:
P(C) = P(A) + P(B) – P(A·B) P(c) = 0.2 + 0.3 – 0.2 x 0.3 = 0.44 The correct solution is C. |
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What is the incidence rate at a small manufacturer with each of 50 employees working 2,000 hours in a year? There were a total of 3 injuries.
A. 3.0 B. 4.5 C. 6.0 D. 9.0 |
C
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A young wizard is working his way through his first year at the National Wizards’ Boarding School. One of his homework assignments is to turn a standard toad (mass = 525 grams) into a small rabbit (mass = 1550 grams) using the Maxwell transformation spell. He made a serious error while practicing the spell, and he vaporized the toad into water vapor with an airborne concentration of 5 mg/m^3. Water has a molecular weight of 18 g/mol. What was the concentration of the water vapor in air as expressed in ppm?
A. 5.3 ppm B. 6.8 ppm C. 18 ppm D. 25 ppm |
The correct solution is B.
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What annual payment is required for a 10 year loan of $500,000 with a 7% interest rate?
A. $25,343.82 B. $55,678.18 C. $71,354.71 D. $80,000.00 |
X
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SARA Title III is also known as:
A. Employee Right to Know Act B. 29 CFR 1910.1200 C. HAZWOPER D. Community Right to Know Act |
X
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In which of the following would a non-training solution be preferred over a training solution?
A. An employee is unfamiliar with the work process. B. An employee is unfamiliar with how to use equipment. C. An employee performed a task incorrectly. D. An employee works in an area with unguarded machinery. |
X
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In fault tree analysis, two types of logic gates are used. Which statement below is correct?
A. The either/or gate is the most common. B. An and gate means that all contributing events connected to the main event must occur in order for the main event to occur. C. A or gate means that all contributing events connected to the main event must occur in order for the main event to occur. D. An and gate means that if either of the contributing events connected to the main gate occur, the main event will also occur. |
X
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What is the wet bulb globe temperature on a cloudy day when the wet bulb globe temperature is 85oF, the globe temperature is 88oF, and the dry bulb temperature is 89oF?
A. 85.9 oF B. 87.3 oF C. 89.5 oF D. 94.8 oF |
X
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Which type of fire involves electrical equipment?
A. Class A fires B. Class B fires C. Class C fires D. Class D fires |
X
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How much money is needed now (as a lump sum) in order to avoid an annual year end expense of $2500 for 5 years with an interest rate of 10.5%?
A. $7563.18 B. $9010.08 C. $9393.06 D. $10,000.00 |
X
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Training works best for problems that are:
A. Information and practice related B. Equipment related C. Employee motivation related D. Reoccurring |
X
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Facilities with quantities of highly hazardous chemicals in excess of threshold quantities set by the US government must comply with Process Safety Management and Risk Management Program regulations. Which statement is true?
A. The purpose of these regulations is to ensure that Material Safety Data Sheets are shipped with each chemical in the United States. B. Both regulations deal with unexpected releases of highly hazardous chemicals. RMP deals with potential exposures to employees while PSM deals with potential exposures to the public. C. Both regulations deal with unexpected releases of highly hazardous chemicals. PSM deals with potential exposures to employees while RMP deals with potential exposures to the public. D. Both A and B are true |
X
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What do you know for sure when an electrical disconnect handle for an industrial machine is pulled down?
A. The machine is brought to a zero-energy state. B. Power to the circuit is disconnected. C. The handle has been moved. D. The machine is no longer energized. |
X
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In fault tree analysis, the house shape indicates what?
A. The house shape is used to indicate the main event. B. The house shape is used to indicate an undeveloped event. C. The house shape is used to indicate events that are expected to occur under normal circumstances. D. The house shape is used to indicate a basic fault event where no further development is needed. |
X
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The psychometric chart provides information on which of the following?
A. Water vapor pressure B. Dry bulb temperature C. Relative humidity D. All of the above are referenced on the psychometric chart. |
X
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Aunt Mildred is roasting a 12 lb. turkey in her kitchen oven for the annual Thanksgiving Dinner. She is also planning to have yams, green bean casserole, cranberries, a fresh vegetable relish tray and homemade pumpkin pie for the feast.
Aunt Mildred maintains a fire alarm in her kitchen. Shortly after she opened the oven door to baste the turkey, the fire alarm sounded with a 3200 Hz tone at 85 dBA at a distance of 10 feet. What would you recommend to Aunt Mildred to deal with this problem if you follow the hierarchy of control? A. Use earplugs while in the kitchen B. Turn on the kitchen ventilation C. Remove the batteries from the smoke alarm D. Take your family to the local café for Thanksgiving dinner |
X
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Areas within a petroleum refinery are most likely to be designated as which NEC Hazardous Location Classification?
A. Class I B. Class II C. Class III D. Permit Required Confined Spaces |
X
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Select the correct statement about education and training.
A. There is no difference between education and training. B. Training focuses on developing skills or behavior change. C. Education focuses on how to do something. D. Both A and C are correct. |
X
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Each year while he delivers his packages, he also conducts a thorough safety inspection of the house starting with the cleanliness of the chimney. He also evaluates escape routes, smoke detectors and fire extinguishment equipment.
Which item below is Mr. Claus most interested in evaluating regarding residential fire safety in the U.S.A.? A. Exit routes well marked. B. Working smoke detector in the kitchen. C. Working smoke detector in the basement. D. Fire extinguisher near the fireplace. |
B
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The transfer of heat directly to objects contacting the body is known as:
A. Acclimatization B. Metabolic heat transfer C. Radiation D. Convection |
D
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Which of the following is a correct statement about equipment deemed “intrinsically safe”?
A. The equipment has the ability to contain an explosion. B. The equipment will not cause sparking or arcing. C. The equipment cannot store sufficient energy to ignite a flammable gas or vapor. D. Both B and C are true statements. |
D
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The safety manager for Acme Construction is conducting an ergonomic hazard assessment at a project where employees are shoveling rock. She wants to estimate the average shovel load weight. She randomly sampled the shovel loads from 5 employees and measured the weight of each load. The results are given below. If we assume the shovel load weights follow a normal distribution, what percentage of shovel loads from the project will likely weigh less than 22 pounds?
Shovel load weights in pounds: 15 22 18 17 17 A. 5% B. 25% C. 50% D. 95% |
X
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People are least likely to remember:
A. What they hear B. What they say C. What they practice D. What they read |
D
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Choose the greatest risk from the choices below.
A. An auto accident with an annual probability of 0.06 that will cost $2,500 B. A diagnosis of lung cancer with an annual probability of 0.00074 that will cost $35,000 C. A disabling accident at home with an annual probability of 0.012 that will cost $12,000 D. A fire-related injury in the home with an annual probability of 0.000052 that will cost $60,000 |
A
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The dose rate from gamma radiation from a damaged nuclear reactor is measured to be 6 millirem/hour at a distance of 1,000 meters from the source. What is the estimated dose rate at a distance of 10 meters from the source?
A. 0.006 millirem/hour B. 6.00 millirem/hour C. 600 millirem/hour D. 60.0 rem/hour |
X
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Which industrial chemical listed below may cause delayed acute health effects that appear up to 48 hours after exposure?
A. Benzene B. Chromium (VI) C. Formaldehyde D. Phosgene |
D
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Management by objectives
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Peter Drucker
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Which tool is used to conduct a “ring test” on newly received abrasive grinding wheels?
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Wooden Mallet
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How much heat would be released from the complete combustion of a 5-gallon container of gasoline? The density of gasoline is 6.073 lbs/gal and its heating value is 18,772 BTU/lb.
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570,012 BTU
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Which type of automatic fire suppression system utilizes sensors within the protected area in addition to sensors in each sprinkler head to open a valve and fill the distribution pipe before the sprinkler heads open?
A. Wet-pipe B. Dry-pipe C. Preaction D. Deluge |
X
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According to ANSI Z358.1 “Emergency Shower and Eyewash Equipment” what is the required flow for an emergency eyewash station?
A. 0.2 gal/min for 15 minutes B. 1.5 L/min for 15 minutes C. 0.8 gal/eye for 15 minutes D. 1.0 L/min for 15 minutes |
B
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The 2 main types of tubular scaffolds
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Tube type and frame type
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A machine safety improvement project under consideration for financing has anticipated fixed costs of $17,628 and variable costs of $437.52. The variable costs are incurred when a protective mechanism engages, forcing a hard-stop to machine operation, which then requires maintenance services to replace consumable parts and permit resumption of operations. Over the previous 12 months, the operational fault condition that this proposed project is expected to resolve has caused 7 serious injuries in 7 separate instances, incurring average expenses of $1,637.50 per incident. What is the anticipated payback period for this project? Ignore the time value of money when answering this question, i.e., assume 0% required return.
A. 2.1 years B. 2.2 years C. 2.3 years D. 2.4 years |
X
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Which set of signs and symptoms is characteristic of a worker experiencing heat stroke?
A. skin eruptions, itching red skin, reduced sweating B. chills, restlessness, mental confusion, hot dry skin C. profuse sweating, vomiting, high pulse rate, blurred vision D. incapacitating muscular cramping in abdominal and fatigued muscle groups |
X
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Pain and tingling in the thumb and first three fingers of the hand is associated with which cumulative trauma disorder?
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carpal tunnel
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Which one of the following specification standards provides the criteria for environmental management systems?
A. OHSAS 18001 B. ISO 9001 C. ANSI Z10 D. ISO 14000 |
ISO 14000
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An analytical report for a collected employee breathing zone air sample indicates that the concentration of methanol (MW=32.04 g/mol) was 227 mg/m3. What is this concentration when expressed using units of parts per million?
A. 173.12 ppm B. 173.23 ppm C. 297.47 ppm D. 297.65 ppm |
B
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Under the Incident Command System, “effective span of control” refers to the number of persons that a supervisor can effectively manage during an incident response. What is the maximum range of direct reports recommended for effective resource management?
A. 1 to 4 B. 3 to 7 C. 4 to 8 D. 5 to 9 |
B
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A certified safety professional (CSP) was in the habit of eating two fried eggs for breakfast every day. In one week, the professional had 5 eggs out of a single carton (one dozen eggs) that contained double yolks. The CSP decided to calculate the probability of this happening as a random event. His internet research indicated that double yolks happen at a frequency of 1 per 1,000 eggs. Assume the probability follows the Poisson distribution, and estimate the probability of getting 5 double yolk eggs in a single carton.
A. 1.2 B. 0.9988 C. 1.2 x 10^-3 D. 2.1 x 10^-17 |
D?
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Which material would be most appropriate for use as a shield against beta radiation exposure in a laboratory environment?
A. Lead brick B. Masonry brick C. Clay-coated cardstock paper D. Acrylic glass |
A?
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A temperature of 540.27 degrees Rankine is equal to ____ degrees C.
A. 25 B. 27 C. 29 D. 31 |
B
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What is the key difference between a detonation and a deflagration?
A. Speed of the resultant concussive wave-front B. Rate of reaction within the subject material C. Amount of pressure generated within the surrounding environment D. Degree of confinement or enclosure around the subject material |
A
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Which type of device controls exposure to amputation hazards by physically limiting the range of movement of the operators hands or arms?
A. Movable-barrier device B. Pullback device C. Restraint device D. Two-hand control device |
B
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An automatic sprinkler system, maintained at a system pressure of 60 psi, has an orifice discharge coefficient of 3.6. What is the delivery flow rate of the system?
A. 27.9 gpm B. 32.7 gpm C. 36.2 gpm D. 37.6 gpm |
X
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A product costs a merchant $12.37 to sell and the sales price is $15.99. What is the merchant's profit margin on this product?
A. 22.6% B. 26.2% C. 29.3% D. 31.9% |
C
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Fine airborne dispersions of which one of the following materials is least likely to facilitate a combustible dust explosion?
A. Carbon black B. Wheat flour C. Diatomaceous earth D. Aluminum |
C
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The drybulb temperature is 87ºF and the wet bulb temperature is 65ºF. What is the approximate relative humidity under these conditions?
A. 30% B. 40% C. 50% D. 60% |
A
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A simple circuit contains three capacitors that are wired in series. The capacitors have values of 120 mA, 220 mA, and 320 mA. What is the total capacitance of the circuit?
A. 62.5 mA B. 125 mA C. 250 mA D. 320 mA |
X
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An air sampling report shows the concentration of benzene in a personal air sample was 223 mg/m3. The molecular weight of benzene is 78.11 g/mol. What is this value expressed in parts per million?
A. 50 ppm B. 70 ppm C. 90 ppm D. 110 ppm |
X
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A proposed project will cost $120,000 to implement and will have no residual value at the end of its 7-year operational lifetime. Assuming the cost of capital is 10%, how much annual income is this project expected to produce in each year of its lifetime?
A. $24,648.66 B. $26,972.36 C. $29,834.24 D. $32,981.13 |
X
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When establishing performance goals with direct-reporting staff members, which factor is most important?
A. Creating a mutually agreed upon description of acceptable performance B. Creating a mutually agreed upon completion date C. Creating a mutually agreed upon budget for use while pursuing the goal D. Creating a mutually agreed upon tactical plan to achieve the goal |
D?
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Which of these substances is a lower respiratory irritant?
A. Carbon monoxide B. Lead C. Ozone D. Radon |
C
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What is the airflow through a 15 inch square duct with an air velocity of 1500 fpm?
A. 1,875 cfm B. 2,344 cfm C. 18,750 cfm D. 22,500 cfm |
X
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Which hazardous material level of PPE uses an air purifying respirator?
A. Level A B. Level B C. Level C D. Level D |
C
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What is the name of the legal standard requiring a direct relationship between an injured party (plaintiff) and the entity potentially responsible for the injury (defendant)?
A. Quid pro quo B. Privity C. Tort D. Voir dire |
B?
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Which type of radioactive source poses the greatest exposure hazard?
A. Powdered alpha source B. Solid beta source C. Liquid beta source D. Solid gamma source |
X
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Which solution below best describes synchronous web-based training?
A. Learners review previously recorded lectures, and complete assignments on their own time. B. Learners participate in group discussions using an online message board at their convenience. C. Learners download reading lessons and homework assignments from the internet to complete on their own schedule. D. Learners join a live virtual classroom to participate in real time with the instructor and other participants. |
D?
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What is the first choice to protect an employee from exposure to chlorine gas in a water treatment facility?
A. Required the use of Self Contained Breathing Apparatus (SCBA) B. Substitute ozone for chlorine C. Install a local exhaust ventilation system in the chlorine storage room D. Train employees in proper operating and emergency response procedures for chlorine. |
B
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Frankenstein’s monster, Count Dracula, and Wolfman were walking their rounds on All Hallow’s Eve. They were having a pleasant conversation when Count Dracula noticed the head of Frankenstein’s monster was glowing an odd shade of purple.
When asked about the odd color, Frankenstein’s monster replied that he ate something funny earlier in the day. Wolfman took out his Geiger-Mueller tube and measured a radiation intensity of 5 millirads/hour at a distance of 2 feet from the monster’s head. What is the expected dose rate for Count Dracula who was walking 8 feet in front of the monster? A. 0.31 millirads/hour B. 1.25 millirads/hour C. 2.50 millirads/hour D. 5.00 millirads/hour |
A?
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Which type of testing is used to determine if a chemical is a mutagen?
A. Ames Testing B. Carcinogen Testing C. Control Testing D. Case-Control Testing |
A
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What is industrial hygiene?
A. Control of health hazards arising in or from the workplace B. Recognition and evaluation of health hazards arising from the workplace C. Recognition and evaluation of health hazards arising in or from the workplace D. Anticipation, recognition, evaluation, and control of health hazards arising in or from the workplace. |
D
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In the United States, if the average IQ is 100 with a standard deviation of 15, what percentage of the population would you expect to have an IQ above 115?
A. 1.0 % B. 34.13 % C. 84.13% D. 15.87% |
D?
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An example of __________ would be the repair costs of equipment involved in an accident.
A. direct costs B. indirect costs C. hidden costs D. uninsured costs |
A?
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Which of the following choices is correct regarding metal fume fever?
A. Metal fume fever is linked to exposure to beryllium. B. Metal fume fever is linked to exposure to metals like zinc. C. Metal fume fever is a chronic disease. D. Both B and C are true. |
D?
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What is the best definition of “hazard”?
A. The measure of the severity and probability of an event. B. An event that is not expected, foreseen or intended. C. An unsafe condition. D. How dire the consequences will be if an event happens |
D?
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What is the best example of contributory negligence?
A. An employee fails to follow a safety rule and is injured. B. By accepting a job, the employee assumed all the risks that came with it. C. A co-worker’s error led to an employee’s injury. D. Both A and B. |
A?
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What are the five dominoes in Heinrich’s Domino Theory of incident causation?
A. Injury, incident, unsafe act, unsafe condition, undesirable trait B. Injury, incident, unsafe act, uncontrolled energy, social environment C. Injury, incident, unsafe condition, uncontrolled energy, social environment D. Injury, incident, unsafe act or unsafe condition, undesirable traits, social environment |
D.
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Which example below is the best example of a single point failure?
A. An airplane with a pilot and co-pilot B. A redundant system C. A back-up system D. A dead car battery |
D?
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Which of the following equations defines Ohm’s Law?
A. P=I2R B. Q=VA C. I=V/R D. V=4005√VP |
C
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A company had 263 employees that worked a total of 425,500 hours during the calendar year. The company had 5 recordable injuries in the same calendar year. What is the company’s OSHA Incidence Rate?
A. 2.35 B. 5.25 C. 10.63 D. 12.10 |
A
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Which substance below can produce pulmonary edema in high airborne concentrations?
A. Asbestos B. Cotton Dust C. Ethylene Oxide D. Lead |
C?
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A delivery-route driver is traveling at 35 mph on city streets in moderate traffic and has a reaction time of 0.7 seconds. While driving, the driver checks his smartphone to scan for new texts and emails. The check of the smartphone for messages requires him to take his eyes off of the path of travel for 3 seconds. How far does the vehicle travel while the driver’s attention is devoted to the smartphone?
A. 115 ft B. 124 ft C. 154 ft D. 162 ft |
X
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A set of samples from a normally-distributed population has a mean of 22 and a standard deviation of 7. What is the approximate probability that a sample from this population will have a value greater than 17?
A. 0.26 B. 0.52 C. 0.63 D. 0.76 |
X
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As the angle formed by the legs of a sling increases, what happens to the tension on each leg of the sling?
A. Increases B. Decreases C. Stays the same D. Becomes equal with the other leg |
X
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Employee performance problems caused by ___________ are most likely to be amenable to training solutions.
A. Poor supervision B. Environmental factors C. Lack of skills and knowledge D. Insufficient motivation to perform |
X
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The number of existing cases of a disease in a worker population at a specified time is called the:
A. Incidence Rate B. Prevalence Rate C. Existing Case Rate D. New Case Rate |
X
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What are the major groups that safeguards for machines fall into?
A. Mechanical transmission safeguards B. Point of operation safeguards C. All of the above D. None of the above |
C?
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The minimum breaking strength of safety nets required by OSHA is:
A. 1000 lbs B. 2000 lbs C. 5000 lbs D. 5500 lbs |
X
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