Block A Occupational Skills Flashcards
A ladder’s base is to be setup 1.5m (5’) off a wall, how high can the ladder be extended?
4.5m-6m
A ladder has to reach a level 7.6m (25’); how far out does the ladder need to be placed at its base.
1.9m-2.5m
A ladder has to reach a vertical height of 3.6m (12’), what is minimum ladder length required?
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.
What is the maximum height that a 4.8m (16’) ladder can reach?
12’-6”
What is the first step when tending to equipment?
De-energize
When using a chemical, what would you consult regarding the correct PPE?
MSDS
How many workers can attach to a vertical lifeline at one time?
Only one.
Load capacity can diminished by how much when a knot is in a rope?
50%
Type of file to sharpen a spade bit.
Triangular
Considerations for choosing crane location.
Soil Bearing and crane capacity
Considerations for setting up hoarding.
Public protection and access
What is done to stop drill press from slipping.
Tighten drive belt
What is the first step when changing a circular saw blade?
Disconnect power
Maximum length for a plank on a scaffold 1.5m x 3m
2.1m
When should a worker be informed of a new hazards on the job site?
Prior to the task being performed
What is the best angel to brace an excavation?
45
What is the minimum width of a scaffold platform? OHSA
460mm or 18”
Dry rot in wood occurs when the lumber moisture content is? OBC
20% or higher
the load bearing part of a scaffold is called
transom
Workers must wear fall protection if they are in danger of falling from a height of? OHSA
3m (10’)
Guardrails must be installed if a worker is exposed to a fall of ____ or more from any work surface. OHSA
2.4m (8’)
What must be done when a worker transfers a liquid into a potable container and only they use the entirety within their shift
No need for a label
How much tread exposure can there be on a screwjack?
1/2
Procedure for changing a circular saw blade
Unplug tool, lock blade from rotating, loosen arbor screw turning clockwise
What should be done with the compressor at the end of the day
Reservoir tank drained
How to change a bandsaw blade?
How to change a bandsaw blade?
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
5’ - 6” b) 1.675 m
What safety device is used to hold stock against the fence while ripping on the table saw?
Push stick
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
17.525 m b) 57’ - 6”
What is the name given to wood frames to which string lines are secured too layout the building?
Batter boards
What should be installed on all open sides of scaffolds over 8 feet high?
Guardrails
What knot creates a non-slip loop in the end of the rope?
Bowline
What is the purpose of a snatch block?
To change direction of pull
