Block A Occupational Skills

Question 1

A ladder’s base is to be setup 1.5m (5’) off a wall, how high can the ladder be extended?

Answer 1

4.5m-6m

Question 2

A ladder has to reach a level 7.6m (25’); how far out does the ladder need to be placed at its base.

Answer 2

1.9m-2.5m

Question 3

A ladder has to reach a vertical height of 3.6m (12’), what is minimum ladder length required?

Answer 3

4.6m

3.6m/4 = 0.9m ladder’s base
Get the ladder’s hypotenuse + the ladder’s extension above the landing which is 900mm to 1m.

Question 4

What is the maximum height that a 4.8m (16’) ladder can reach?

Answer 4

12’-6”

Question 5

What is the first step when tending to equipment?

Answer 5

De-energize

Question 6

When using a chemical, what would you consult regarding the correct PPE?

Answer 6

MSDS

Question 7

How many workers can attach to a vertical lifeline at one time?

Answer 7

Only one.

Question 8

Load capacity can diminished by how much when a knot is in a rope?

Answer 8

50%

Question 9

Type of file to sharpen a spade bit.

Answer 9

Triangular

Question 10

Considerations for choosing crane location.

Answer 10

Soil Bearing and crane capacity

Question 11

Considerations for setting up hoarding.

Answer 11

Public protection and access

Question 12

What is done to stop drill press from slipping.

Answer 12

Tighten drive belt

Question 13

What is the first step when changing a circular saw blade?

Answer 13

Disconnect power

Question 14

Maximum length for a plank on a scaffold 1.5m x 3m

Answer 14

2.1m

Question 15

When should a worker be informed of a new hazards on the job site?

Answer 15

Prior to the task being performed

Question 16

What is the best angel to brace an excavation?

Answer 16

45

Question 17

What is the minimum width of a scaffold platform? OHSA

Answer 17

460mm or 18”

Question 18

Dry rot in wood occurs when the lumber moisture content is? OBC

Answer 18

20% or higher

Question 19

the load bearing part of a scaffold is called

Answer 19

transom

Question 20

Workers must wear fall protection if they are in danger of falling from a height of? OHSA

Answer 20

3m (10’)

Question 21

Guardrails must be installed if a worker is exposed to a fall of ____ or more from any work surface. OHSA

Answer 21

2.4m (8’)

Question 22

What must be done when a worker transfers a liquid into a potable container and only they use the entirety within their shift

Answer 22

No need for a label

Question 23

How much tread exposure can there be on a screwjack?

Answer 23

1/2

Question 24

Procedure for changing a circular saw blade

Answer 24

Unplug tool, lock blade from rotating, loosen arbor screw turning clockwise

Question 25

What should be done with the compressor at the end of the day

Answer 25

Reservoir tank drained

Question 26

How to change a bandsaw blade?

Answer 26

How to change a bandsaw blade?

Question 27

When a ladder is placed against a 22’ (6.7 m) high working platform, how far out from the bottom should the ladder be placed? MATH

Answer 27

5’ - 6” b) 1.675 m

Question 28

What safety device is used to hold stock against the fence while ripping on the table saw?

Answer 28

Push stick

Question 29

To assure that a rectangular building is square, what is the diagonal length of the building if its dimensions are 10.515 m x 14.020 m (34’ - 6” x 46’ - 0”)? MATH

Answer 29

17.525 m b) 57’ - 6”

Question 30

What is the name given to wood frames to which string lines are secured too layout the building?

Answer 30

Batter boards

Question 31

What should be installed on all open sides of scaffolds over 8 feet high?

Answer 31

Guardrails

Question 32

What knot creates a non-slip loop in the end of the rope?

Answer 32

Bowline

Question 33

What is the purpose of a snatch block?

Answer 33

To change direction of pull