Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/10

Click to flip

10 Cards in this Set

  • Front
  • Back
Excessive dust levels have been discovered in a workplace, the principal cause being the inefficient local exhaust ventilation system (LEV).

(i) Identify FOUR indications that could have highlighted the LEV systems’ inefficiency. (4)
• Deposits of dust on surfaces and people
• Visible particles in the air
• Discomfort and irritation by employees
• Air monitoring reviews
• Actual ill-health in employees due to exposure to dusts
Excessive dust levels have been discovered in a workplace, the principal cause being the inefficient local exhaust ventilation system (LEV).

(ii) Outline the factors which could have reduced the LEV systems effectiveness (8)
• Poor design
• Lack of planned testing
• Lack of maintenance
• Extraction hood too far from dust source
• Damaged or blocked ducting or filters
• System alterations – unauthorized
• Settings incorrect
• Faulty fan
• Process changes that could lead to greater dust emissions.
Excessive dust levels have been discovered in a workplace, the principal cause being the inefficient local exhaust ventilation system (LEV).

(iii) Describe other methods of control to minimise levels of airborne dust except from LEV. (8)
• Hierarchy of control
• Eliminating the process causing the dust
• A change in process to reduce dust amounts
• Substitution of materials i.e. capsule form, pellets or liquid
• Segregation or enclosure of the dust creation process
• Damping down the dust for easier removal such as vacuuming
• Methods of cleaning so as not to disturb the dust i.e. vacuuming instead of sweeping
Outline necessary precautions to be taken when pedestrians are required to work close to vehicle movement areas. (8)
• Segregation systems for vehicles and pedestrians
• Clear and appropriate road markings
• Visibility – mirrors, transparent doors, adequate lighting etc.
• Vehicular audible warnings
• Site rules
• High-visibility clothing
• Good housekeeping
• Training and supervision of all involved on site
Factory cleaning staff uses a rotary floor polisher each night.

(i) Identify the associated hazards. (4)
• Segregation systems for vehicles and pedestrians
• Clear and appropriate road markings
• Visibility – mirrors, transparent doors, adequate lighting etc.
• Vehicular audible warnings
• Site rules
• High-visibility clothing
• Good housekeeping
• Training and supervision of all involved on site
Factory cleaning staff uses a rotary floor polisher each night.

(ii) Outline what control measures could be used to reduce the risks. (4)
• Guarding
• Cable management
• Isolation for the task of changing brushes
• Appropriate non-slip footwear
• Regular testing and maintenance
• Residual current devices – RCD’s
• Training to ensure pre-use checks
Outline precautions needed when maintenance work is being carried out in an underground storage vessel. (8)
• Permit-to-work
• Risk assessment
• Isolation
• Pre-cleaning
• Purging and testing the vessel’s atmosphere
• Safe means of access and egress
• Appropriate tools i.e. non-spark
• P.P.E
• Appropriate lighting
• Continual monitoring
• Competent and trained personnel
• Good communication systems between tank and above-ground workers
• Maintenance of detailed emergency procedures
Outline the principal requirements to ensure excavation work is carried out safely. (8)
• Examine the support structures weekly by competent person
• Record examination
• Inspect working part daily or per shift if deeper than 2m
• Inspect support material before use
• Support work done under supervision of competent person
• No person to work in excavation unless competently examined
• No projecting nails on support structure
• No materials left near edges of excavation
With respect to work-related upper limb disorders (WRULD’s).

(i) Identify typical symptoms. (4)
• Back, neck and shoulder pain
• Swollen joints
• Reduced mobility and stiffness
• Cramps and muscle fatigue/tiredness
With respect to work-related upper limb disorders (WRULD’s).

(ii) Outline the factors that would increase the development of WRULD’s. (4)
• Display screen equipment issues – DSE
• Layout of workstation
• Insufficient breaks from the task
• Inadequate space leading to poor postures
• Excessive force needed to carry out tasks
• Frequency of the task
• Vibrating tools/equipment
• Pre-existing medical conditions
• Pregnant women