Safety Questions

Question 1

What are Fire Extinguishers with A used for?

What do the symbols look like?

Answer 1

• Ordinary combustables
• A green triangle with A inside

Question 2

What are B fire extinguishers used for?

What do they look like?

Answer 2

• Flammable or combustable vapours
• Red square with a B inside.

Question 3

What are C extinguishers used for?

What do they look like?

Answer 3

• Fires involving energized electrical equipment.

Question 4

What are D extingushers used for?

What do they look like?

Answer 4

• Fires involving certain combustable metals, such as magnesium, titanium, zirconium, sodium, or potassium.

Question 5

At what height can death occur when falling?

Answer 5

3m

Question 6

What ladder do you use when working around electricity?

Answer 6

Fiberglass

Question 7

What is the ratio for leaning a ladder upright?

Answer 7

4 to 1 or an angle of 75.5 degree

Question 8

How high should a ladder extend past the top platform?

Answer 8

1m

Question 9

What should an open ladder be no steeper than?

Answer 9

6 to 1

Question 10

Can you paint a ladder?

Answer 10

No, not with anything other than a transparent protective coating.

Question 11

What is a scaffold?

Answer 11

A temporary elevated platform and supporting structures designed to support workers, workers’ equipment and materials.

Question 12

How much weight can a scaffold hold?

Answer 12

Only 1/4 of the load for which it is designed

Question 13

Where does a scaffold need to be anchord?

Answer 13

Every 4.6 meters vertical and 6.4 meters horizontal

Question 14

How high is a free standing scaffold or rolling scaffold allow to be?

Answer 14

3 times its smallest dimension of its base.

Question 15

When are you allowed to be on a moving scaffold platform

Answer 15

If the height is no more then two times its smallest base demsion

Question 16

How wide must a scaffold platform be?

Answer 16

No less then 1 m

Question 17

How high must boots be made?

What must they be certified with?

Answer 17

• 8 inches
• CSA approved badge

Question 18

What state must a machine be in to work on it?

Answer 18

Zero Mechanical State

Question 19

Are combination locks allowed on machines?

Answer 19

No

Question 20

An extension ladder of up to 36 feet must have an over lap of ____ feet.

Answer 20

3

Question 21

An extension ladder 36 - 48 feet must have an overlap of ____ feet.

Answer 21

4

Question 22

An extension ladder of over 48 feet must have ____ feet of overlap.

Answer 22

5

Question 23

Step ladders must rise to within ____ feet of the work.

Answer 23

3 - 4

Question 24

What is the maximum height of a stepladder?

Answer 24

20 ft

Question 25

What are step ladders not to be used for?

Answer 25

Ways to access higher levels.

Question 26

Never work from the ____ rung(s) of ladders

Answer 26

Top 2 rungs

Question 27

What way can a ladder never be laid? How should it be laid?

Answer 27

- On its rungs. (Face down) - On its rail (side)

Question 28

What are two fall protection systems?

Answer 28

- Fall Arrest System - Fall Restraint System

Question 29

What is a Fall Restraint System?

Answer 29

A system to prevent a worker from falling from a work position, or from traveling to an unguarded edge from which the worker could fall.

Question 30

What is a Fall Arrest System?

Answer 30

- A means that will stop a worker’s fall before the worker hits the surface below.

Question 31

An __________ must ensure that a fall protection system is used when work is being done at a place that is ___ ft high?

Answer 31

- Employer - 10ft

Question 32

A temporary fall arrest system must be able to handle _______ lbs

Answer 32

- 5000lbs Or twice the maximum arrest force.

Question 33

A temporary fall restraint system must be able to handle _____ lbs

Answer 33

- 800 lbs Or 4 times the weight of the worker

Question 34

The foundation for a Scaffold is usually what?

Answer 34

Heavy wooden plank called Mud Sill

Question 35

What dimenson should a single Mud Sill be?

Answer 35

2 x 10 x 10

Question 36

A free standing scaffold that is more than _______ higher than its minimum _____ dimension must be fastened to the building or supported by other means.

Answer 36

-Three times higher - Base dimension

Question 37

When must a guard rail be installed on a scaffold?

Answer 37

If the working surface of the scaffod is more than 3 m (10’) above the surrounding ground.

Question 38

How high must a safe guard rail be? Can you use fibre or wire ropes for guard rails?

Answer 38

- 40” to 44” - No

Question 39

What do toe boards do?

Answer 39

Prevent tools, materials, or equipment from falling off the scaffold.

Question 40

What are the dimensions of a toe-board?

Answer 40

4” in height and no more then 1/2” of clearance between their low edges and the work platforms.

Question 41

What species of lumber are acceptable for scaffold construction?

Answer 41

- Douglas Fir Larch - Hem Fir - Spruce Pine Fir - Coast Sitka Spruce

Question 42

What is the minimum scaffold work platform width?

Answer 42

20”

Question 43

What is the maximum slope for a scaffold work platfrom?

Answer 43

1:5 slope

Question 44

How far apart must plank supports be apart for both light work and heavy work?

Answer 44

- 10’ for light work - 7’ for heavy work

Question 45

How long must platform planks be?

Answer 45

6’ minimum 12’ maximum

Question 46

At what interval horizontally should a scaffold be secured to the building structure?

Answer 46

6.4 m (21’)

Question 47

Where is the first vertical attachment to a building for a scaffold. What interval after this?

Answer 47

- 3 times the minimum base dimension - Every 6m (20’) after that

Question 48

What additional safety procaution must be added to aluminum scaffolding?

Answer 48

It must be grounded or have rubber tires on the supports.

Question 49

What type of ground can you not put mud sills directly onto?

Answer 49

Frozen ground

Question 50

Rolling scaffolds should only be done on what floors?

Answer 50

Floors that are flat and within 3 degrees of level.

Question 51

All vertical scaffolds must be equipped with what?

Answer 51

Locking pins on the top and bottom of the wheel couplers.

Question 52

Height of rolling scaffolds must not exceed what?

Answer 52

Three times the base dimension.

Question 53

High voltage circuit breakers trip when an overload occurs and they also:

Answer 53

Extinguish the arc

Question 54

The main advantage of AC current over DC current is?

Answer 54

AC current can steped down or up.

Question 55

What does this symbole mean?

Answer 55

Oxidizer

Question 56

Answer.

Answer 56

A)

Question 57

Answer

Answer 57

A)

Question 58

Answer

Answer 58

A)

Question 59

Answer

Answer 59

D)

Question 60

Answer

Answer 60

C)