BC OWNER BUILDER QUESTIONS AND
CORRECT ANSWERS.
1. What shows hidden objects in blueprints? - correct answer - Dashed
lines
2. What square is best to use to transfer and 35 degree slope from plans to
work? - correct answer - A sliding T-bevel
3. How much support is needed for floor joists into footing? - correct
answer - 1.5" min for floor joists. For beams 3.5"
4. Why must concrete cure? - correct answer - To reach peak strength
5. What is one method that can be used to prevent new concrete from
freezing in cold weather? - correct answer - Insulated tarps
6. When should you order and inspection for an external sewer line? -
correct answer - When the pipe in on 6" of sand and before backfill
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7. When should insulation be inspected? - correct answer - After insulation
is installed but before covering
8. When can you put up exterior house wrap? - correct answer - After
framing inspection but before insulating
9. What must a gas fitter do when a gas system installation has been
completed? - correct answer - Affix a tag with their name, certificate
number, type of appliance and date
10. How far away must an electrical meter be from a gas meter? - correct
answer - 1m
11. When locking out of a circuit what must you do? - correct answer -
Shut off, tag and lock
12. For beam construction, what to do for nailing patters - correct answer
- Refer to manufacturers or engineer's instructions
13. Who is responsible to ensure that the electrical contractor is
performing work safely on the site? - correct answer - Owner builder
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14. When NOT to install vapour barrier - correct answer - If insulation wet
15. How to measure wood moisture - correct answer - Moisture meter
16. Which of the following is not a characteristic of house wrap? - correct
answer - Is vapour proof
17. Min gap for rain screen - correct answer - 10mm
18. When strapping vertical siding? - correct answer - Put vertical straps
on wall with horizontal on second
19. What is best practice eaves trough hanger spacing? - correct answer
- 3 feet/36 inches
20. Why is the dam used on window flashing? - correct answer - To
hinder water flow behind siding etc.
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21. What to do if window top is 16" down from a 24" overhang? - correct
answer - Install header flashing
22. Worst underlayment for bathroom tile floor? - correct answer - 1/4"
particle board
23. Best type of flashing to use? - correct answer - Will last the lifetime of
the surrounding materials
24. Order of inspections - correct answer - 1: forms, basement and
crawlspace
25. 2: Plumbing, dampproofing, foundation drainage , sanitary sewer,
storm sewer, sump, water service
26. 3: plumbing, electrical, mechanical, gas
27. 4: framing inspection
28. 5: insulation and vapour barrier
29. 6: rainscreen/exterior finishs, drywall
30. 7: building envelop inspection
31. 8: final inspection
32. Which is not an acceptable method for determining the correct
grading for a trench? - correct answer - An experienced excavator says
it's ok
33. At what depth is shoring required? - correct answer - 1.2m/4ft