Study Questions with Verified Answers |
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1. Which is not an acceptable method for determining the correct grading for a
trench? - ANSWER An experienced excavator says it's ok
2. At what depth is shoring required? - ANSWER 1.2m/4ft
3. When installing the footer, it was dug down 2in. deeper than what the
elevation should be. What needs to happen? - ANSWER Install the footing
form at proper elevation and fill with extra concrete
4. When installing flashing for a roof valley how much do the asphalt shingles
need to overlap? - ANSWER 6in.
5. What would cause a blister on a flat roof? - ANSWER Moisture trapped
under roof
6. Water is backing up in a skylight, what do you do to fix it? - ANSWER
Clear drainage
7. What needs to be done first when starting to install asphalt shingles on a
roof? - ANSWER Install eve protection
,8. What kind of fastener can you use in a wood that has been treated with
chromated copper arsenate? - ANSWER Lumber manufacturer approved
fastener
9. When should there be insulation under a basement slab? - ANSWER When
there is in floor heating
10.How deep should the control joint be in a concrete slab? - ANSWER 1/4 of
the slab
11.What kind of insulation should be installed under slab? - ANSWER XPS
12.What kind of insulation has the least moisture permeability? - ANSWER
XPS
13.When framing a header of a staircase where does the framer get the nailing
pattern? - ANSWER Use the BC code section 9 nailing pattern
14.What document must the owner submit to WorkSafe BC prior to starting
construction? - ANSWER Notice of project
15.What is the nailing/screw pattern for backer board? - ANSWER
Manufacturer approved pattern
16.When installing a bi-fold door the door bings at the side jamb on the top.
What can be done to fix this? - ANSWER Adjust the top pivot point
17.What should be done when joist and beams have contact with bare concrete
walls? - ANSWER Use pressure treated wood and leave 12mm air space
,18.What is the minimum depth for a beam support? - ANSWER Not less than
89mm
19.When is a footing required? - ANSWER Under walls, pilasters, columns,
piers, fireplaces and chimneys that bear on soil or rock
20.When is a footing inspection conducted? - ANSWER When the forms and
steel reinforcing are complete, but prior to placing any concrete
21.What is the moisture permeability of 6mm poly? - ANSWER 0.03 US perm
or 1.7 ng
22.When can WorkSafe BC come to your construction site? - ANSWER
Anytime
23.Which best describes the principle of rain waterterm-0 deflection? -
ANSWER Design and construction that prevents water from ever entering
24.What lighting safety certifications are required in Canada? - ANSWER
CSA safety certification
25.What grit of sandpaper would get the smoothest result? - ANSWER Higher
grit with get a smoother finish
26.What is the maximum rise in a flight of stairs? - ANSWER The vertical
height of any flight of stairs should not exceed 3.7m
, 27.What is the minimum distance that a ladder must extend above a parapet
wall or landing? - ANSWER 3ft
28.What heights are end dams to be on windows and door flashings? -
ANSWER 25mm/1 inch
29.End dam use - ANSWER Stop water from coming in
30.When should you call for inspectors to make them efficient as possible? -
ANSWER Group inspectors together when possible and call when work is
complete
31.When is an HRV required? - ANSWER Almost always
32.What can you build under the owner-builder HPO process? - ANSWER
Single detached home under a single title. Single dwelling attached to pre-
existing building older than 10 years. Single dwelling attached to a new non-
residential building.
33.Who issues permits for a gas fireplace? - ANSWER Safety Authority (call
Technical Safe BC)
34.Can an owner builder take out their own electrical permit? - ANSWER Yes,
up to 200A
35.What is the best way to apply asphalt waterproofing on a foundation? -
ANSWER Spray-on or roll on dry foundation with 2in. below grade