Socrative Occupational Skills Test Flashcards
1.When a ladder is placed against a 22’ (6.7m) high working platform, how far out from the
bottom should the ladder be placed?
The range in Ontario is 1:3-1:4, but 1:4 is more common across Canada
2.
What safety device is used to hold long stock against the
fence while ripping on the table saw?
Feather board
- To assure that a rectangular building is square, what is the diagonal measurement of the
building if its dimensions are 34’ 6” x 46’
57’ 6” (17.525m)
4.
What is the name given to wood frames to which string lines are secured to layout the building?
Batter boards
5.
What are the three types of grade rods used for suveying and layout?
Architects’, Engineers’, and Metric
6.If the elevation at the curb is 100.34’ (30.582m) and a 125’ (38.098m) driveway has a 5%
grade, what would the elevation be at the house?
106.59’
7.
What is the distance between from the propety line and the building known as?
Set back
8.
What should be installed on all open sides of scaffolds over 8’ 2.4m) high?
Guardrails
9.
What is the main difference between a transit level and a builder’s level?
The transit can be used to measure vetical angles.
10.What is the difference between 100 linear feet of 2 x 12 and 100 board feet?
100 Board feet
Board feet o Thickness(in inches)X Depth(in inches)X Length(in linear feet)]÷ 12
= 2” X 12” X 100 linear feet)÷ 12 = 200 Board Feet
Difference = 200 Board Feet - 100 Board Feet = 100 Board Feet
- What is the crane operators reaction to the following hand signal?
Thumbs up
Boom up
- What is the missing angle?
20° 21’ 16”
13.
What knot creates a non slip loop in the end of the rope?
Bowline
14.
When the Hypotenuse of a ight angle tiangle is 40, and its height is
32’, what is the length of the base?
24’
- A heavy machine requires a circular concrete base that is 13’ in
diameter. What is the surface area of the base?
132.73 ft2
16.
What is the purpose of a snatch block?
to change direction of pull
17.
What is the crane operators reaction to the following hand signal?
Stop
18.
What is the maximum size boulder that can be used in backfill for an excavation?
250mnm
19.
How deep should a trench be before you need to provide a ladder to enter or have the sides
sloped?
4’
20.
What does the following WHMIS symbol represent?
Compressed gas
21.
How far beyond the face of the chimney wall must a chimney cap project?
25mm
22.
On a builders level with four thumb levelling screws, which direction would you tun the thumb
screws to move the bubble in the vial to the left?
turn the screws outward
23.
What must castors for steel frame scaffolding have?
Working Brakes
24.
What is the minimum depth below grade for a foundation on clay soil?
1.2m
25.
What would be the minimum length of ladder that could safely be used when the height of the
building is 23’?
30’
26.
When corbelling for masonry veneer, what is the
maximum distance beyond the support that a 4” thick brick can project?
25mm
27.
Ladders are required to extend how far above working platforms or landings?
0.9M
- Any worker in danger of falling ____m must wear fall protection
3M
29.
What is the chemical process through which cement hardens when water is added to mixed
concrete?
Hydration
- What would the wire rope have to be rated for in order to lift the following?
Worker = 210 lbs.
Tools = 175 lbs.
Material = 225 lbs.
6100 lbs. SF
OHSA Cables, Slings, Rigging
Strength
169. A cable used by a crane or similar hoisting device shall be capable of suppoting at least,
(d) Ten times the maximum load to which it is likely to be subjected if the crane or similar hoisting device
is used for supporting persons. O. Reg. 213/91, s. 169.
210lbs + 175lbs + 225lbs = 610lbs ×(10)
= 6100 lbs. SF
12’6 1/2”
Referring to the highlighted area, we can see that the two spans for our W8X20
beam are 13’7” and 11’6” (wall thicknesses can be ignored):
according to the footnotes from the beam tables in the Building code: “3
Supported length means half the sum of the joists spans on both sides of the beam”
Therefore:
Supported joist length =
=(13’ - 7” + 11’ 6”) / 2
=(13.5833333’+11.5’) / 2
= 12.5416666
= 12’ 6.5”
31.
How is a hidden line shown on a set of plans?
Series of short dashes
32.
In laying out a 24 x 35 rectangle, what are the largest measurements of 345 you could have
without going outside your working area?
24-32-40
33.
Where is the “D” ring supposed to be located on your full body harness?
In between your shoulder blades
34.
A tube & clamp scaffold has had one of it’s 2” X 10” mudsills undemined by heavy rain. How
should the scaffold be stabilized?
Remove loosened ground and excavate to level, extend scaffold down to new elevation
35.
Three mirrors are mounted on a wall as shown. What is distance
eq.?
1’ - 10”
36.
Carpenters utilize a circular saw and a _______ cut to remove material from the center of a form.
Plunge
37.
Who shall supervise the erection, alteration, and dismantling of a scaffold?
Competent worker
Which of the following is recommended for joining two ropes of similar diameter?
Square knot
A carpenter is asked to raise a form 2% higher than its existing elevation of 35.25’ (10.74 m).
What would the new elevation of the form be?
35.955’ (10.96m)