Nait Carpentry Year 1 10/15 Safety

Front 1

What is the span that a handrail is required?

Back 1

920-1070mm

Front 2

What is the maximum distance between vertical and horizontal anchor points if the scaffold has hoarding?

Back 2

3 meters both horizontally and vertically.

Front 3

What is the minimum height of a toe board?

Back 3

140mm or 6 inches

Front 4

What is a Tirfor and what does it do?

Back 4

A Tirfor is a hand-operated cable winch that allows you to move heavy equipment horizontally along an unlimited amount of wire rope

Front 5

If you tie a knot into a rope, what does the tensile strength of the rope reduce by?

Back 5

50%

Front 6

What do you place under a crane to stabilize it?

Back 6

Blocking

Front 7

When is a tag line necessary?

Back 7

Always

Front 8

At what height is Fall Protection required? Imperial and Metric?

Back 8

3 metres or 10 Feet

Front 9

Who is responsible for making sure that the fall arrest equipment is meant for the specific task?

Back 9

The employer is responsible for making sure the proper equipment is available.

Front 10

Who is responsible for inspecting the Fall protection for wear and tear? How often should an inspection be done?

Back 10

Employee is responsible but the employer is responsible for making the employee do it. Inspected before each work shift or when user changes.

Front 11

Is it safe to use fall protection that has stopped a fall? Why or why not?

Back 11

Yes if it has been returned to service via a professional engineer. No if it has not been reconditioned by engineer or manufacturer

Front 12

True or False:

Double step ladders are sometimes used in pairs to create a mini-scaffold?

Back 12

True, they can be used in pairs with extension plans or aluminum stages.

Front 13

Extension ladders must extend vertically past the landing or parapet by how much?

Back 13

1m or approximately 3 rungs.

Front 14

At what ratio is a Ladder supposed to be set up?

Back 14

Rise of 4 to a run of 1 4:1

Front 15

What is a type 1A ladder designed for and how much is it rated for?

Back 15

Type 1A is Extra Heavy-Duty and meant for Industrial Construction. It has a maximum load rating of 136kg

Front 16

What type of ladder can is for Light Commercial work and can have a maximum load of 102kg?

Back 16

Type 2 ladder or Medium-Duty

Front 17

You would typically find this type of ladder at home, which can hold how much?

Back 17

Type 3, 91kg.

Must point out that many people are already over that weight limit.

Front 18

Working in an power plant with lots of cables around, what material choice is best for your ladder and why?

Back 18

Fibreglass because it is electrically non-conductive and strong.

Front 19

What is the Uniformly Distributed Load rating for a Light-Duty Scaffold?

Back 19

122kg/m2

Front 20

The scaffold must be able to support at LEAST how many times the load?

Back 20

Four times the load, or 1/4 the Breaking Point of the scaffold.

Front 21

What is the difference between Elevated Working Platforms and Framed Scaffold Systems?

Back 21

Elevated working platforms are height adjustable, framed scaffolds are fixed height.

Front 22

What can you use to secure the footing of the scaffold and what is it called?

Back 22

Mudslides typically have treated wood.

Front 23

Free-Standing scaffold maximum height is what?

Back 23

Three times the smallest dimension.

Front 24

How many metres before you need to tie into the building vertically on a scaffold?

Back 24

4.6m Vertically

Front 25

How many metres before you need to tie into the building horizontally on a scaffold?

Back 25

6.4m Horizontally

Front 26

Who can erect a scaffold?

Back 26

Anyone that is competent.

Front 27

If there is someone on a rolling scaffold, what is the maximum height that a person can stay on it while it is moved?

Back 27

Two times the smallest base

dimension.

Front 28

What can you use to make the the base a wider dimension to provide the ability to build taller?

Back 28

Outriggers can increase the base dimension.

Front 29

At what height is a toe board required?

Back 29

3.5 Metres or more from the ground

Front 30

What is an intermediate rail and where is it placed?

Back 30

An intermediate rail (mid-rail) is placed between the handrail and the deck of the scaffold

Front 31

What is a Node Point?

Back 31

Where the Standard and the Transom meet.

Front 32

What is a transom?

Back 32

Horizontal beam between the Standards to support the working platforms.

Front 33

What is a standard?

Back 33

Vertical supporting members that support compression loads.

Front 34

What is the distance between two standards called?

Back 34

A Bay

Front 35

What is the distance between two transoms called?

Back 35

A Lift

Front 36

What is the pulley that you attach to scaffold to hoist materials up called?

Back 36

A Gin Wheel or Block

Front 37

What is a Plan Brace?

Back 37

A diagonal braces running horizontally between standards to keep the scaffold square and resists shunting.

Front 38

What type of Control is Material Handling Equipment considered?

Back 38

An Engineered control.

Front 39

What is a SWL? How is it Calculated?

Back 39

Safe Working Load is calculated by a fraction of the actual breaking strength of the weakest component of the rigging equipment.

Front 40

What Breaking Strength?

Back 40

Minimum load that is required to break that component.

Front 41

What is a Sling?

Back 41

A sling is used to fasten loads to hoisting equipment.

Front 42

What is Shock Loading?

Back 42

Any sudden movement of the load by Hoisting equipment.

Front 43

What do you place on material to limit the possibility of kinking and damaging the material when hoisting?

Back 43

Load Softeners.

Front 44

What is the Safety Factor for General Rigging and Hoisting?

Back 44

5:1

Front 45

What is the Safety Factor for Lifting and Transporting Workers?

Back 45

10:1

Front 46

What is the Safety Factor for Public Elevators?

Back 46

20:1

Front 47

What is an advantage of Synthetic Slings?

Back 47

They will not mar, deface or scratch delicate surfaces. They more elastic which allows them to absorb shock loads better.

Front 48

What is the recommended maximum angle for lifting a load?

Back 48

60 Degrees

Front 49

When lifting something with eyebolts, it is recommended to do what?

Back 49

Attach a shackle to the eyebolt to be used with a hook.

Front 50

A hoisting machine can attach a __________ to provide a mechanical advantage.

Back 50

Block

Front 51

Describe the hoisting signal for "Stop"

Back 51

One arm is waved back and forth perpendicular to the signalman's body.

Front 52

Describe the hoisting signal for "Emergency Stop"

Back 52

Both arms should be swept out from the body at shoulder height. (The safe motion in baseball)

Front 53

When doing hand signals to have the operator move slowly, what do you change about your signals?

Back 53

Place the opposite hand over or under the finger signal.

Front 54

What does WHMIS stand for?

Back 54

Workplace Hazardous Materials Information System

Front 55

What does MSDS stand for?

Back 55

Material Safety Data Sheet

Front 56

Where should MSDS books be located on a job site?

Back 56

Somewhere that is easily accessible, ie. First Aid office or Lunchroom

Front 57

What are the three key elements of WHMIS?

Back 57

1. Worker Education

2. Product Labelling

3. MSDS

Front 58

When must you use a Workplace Label?

Back 58

You must use a workplace label when transferring the material to any container in which it was not shipped in.

Front 59

What are the three things that are needed to start a fire?

Back 59

Fuel, Air, and Heat

Front 60

What is a Class A fire and what is the symbol?

Back 60

Wood and paper, AKA normal combustibles. The symbol is a green triangle with an "A" in the centre

Front 61

What is a Class B fire and what is the symbol?

Back 61

Flammable liquids. Red Square with a "B" in the centre.

Front 62

What is a Class C fire and what is the symbol?

Back 62

Electrical fire. Blue circle with a "C" in the centre.

Front 63

What is a Class D fire and what is the symbol?

Back 63

Combustible Metals. Yellow Star with a "D" in the centre.

Front 64

What is a Class K fire and what is the symbol?

Back 64

Grease or cooking oil fire. Black box with a "K" in the centre.

Front 65

What type of extinguishing agent(s) can be used on Class B and C fires, but not on Class A, D, or K?

Back 65

Carbon Dioxide, Regular Dry Chemical, and Purple K Dry Chemical.

Front 66

What type of extinguishing agent(s) can be used on Class A, B, and C fires?

Back 66

Multi-purpose Dry Chemical

Front 67

Water can only be used as an extinguishing agent in what Class of fire?

Back 67

Class A only

Front 68

What is the Acronym for using a portable fire extinguisher and what does it stand for?

Back 68

PASS

P: Pull the Pin,

A: Aim at the base of the flames,

S: Squeeze the handle,

S: Sweep the nozzle from right to left.

Front 69

What does OH&S stand for?

Back 69

Occupational Health and Safety.

Front 70

What is Bill C-45?

Back 70

Bill C-45 is Federal Legislation that protects you and your co-workers and prescribes criminal charges be laid where a workplace injury or fatality occurs.

Front 71

What PPE is your employer responsible for providing?

Back 71

Noise and Respiratory PPE.

Front 72

What PPE is your employer allowed to enforce you to use on the job site?

Back 72

Anything that they think necessary.

Front 73

Who is responsible for the condition of your PPE?

Back 73

The employee using said PPE

Front 74

What are the four workplace hazard categories?

Back 74

1. Biological Hazards,

2. Chemical Hazards,

3. Ergonomic Hazards,

4. Physical Hazards

Front 75

What are the three Controls?

Back 75

1. Engineered Controls,

2. Administrative Controls,

3. PPE Controls

Front 76

What is better to have on a job site, generically speaking. An Emergency First Aider and a Standard First Aider, or two Standard First Aiders?

Back 76

Two Standard First Aiders are better to have on site, generically speaking.

Front 77

What is the single largest contributor to safety in the workplace?

Back 77

Attitude