1. If unused mortar stiffens due to hydration of cement, what mus
z z z z z z z z z z
you do?
z z
…Ans>> Discard the mortar
z z z
2. What minimum time must you wait before caulking or grouting new
z z z z z z z z z z
tiles?
z
…Ans>> 24-48 Hours z z
3. How long should you wait before installing tile on a shower pan?
z z z z z z z z z z z
1 z/ z28
, …Ans>>: 24 Hours z z
4. Unstable dry rock, angular gravel, sandy loam, and cohesive
z z z z z z z z
zsoils having compressive strengths greater than 0.5 and less than
z z z z z z z z z
z1.5 tons/sq ft (tsf), aretypical examples of
z z z z z z z
…Ans>>: Type-B Soils z z
5. If 65 street lights are fed by a 2275 volt series circuit, what is the
z z z z z z z z z z z z z z
voltageacross each light?
z z z z
…Ans>>: 35V z
In a series circuit, the total voltage is divided equally.
z z z z z z z z z
6. For safety reasons, the maximum simple slope of an excavation, up
z z z z z z z z z z
to 20 ftdeep, in Type-B soil is
z z z z z z z z
…Ans>>: 1:1 (45°) z z
7. A Pittsburgh joint is used in
z z z z z
…Ans>>: HVAC ductwork z z
8. The drain for a pressure relief valve on a water heater should be
z z z z z z z z z z z z
extended to
z zz
…Ans>>: The outside of the building z z z z z
2 z/ z28
,9. What is the minimum slope toward the drain of a shower pan?
z z z z z z z z z z z
…Ans>>: 1/4" per foot(2%)
z z z z
10. What is the diameter of #3 rebar?
z z z z z z
…Ans>>: 3/8" z
11. If a vendor fails to provide an MSDS, you have the right to call
z z z z z z z z z z z z z
…Ans>>: Cal/OSHAor DOSH
z z z
12. When installing a door jamb, you need shims at
z z z z z z z z
…Ans>>: Both hinge and strike sides,three on each side.
z z z z z z z z z
13. Which of the following is used to adhere vinyl floors?
z z z z z z z z z
A. Epoxy cement z
B. Asphalt mastic z
C. Latex primer z
D. White glue z
…Ans>>: Epoxy cement z z
14. When do you need bracing for a drywall wall?
z z z z z z z z
…Ans>>: Diagonal bracing is needed every 25' for any drywall wall.
z z z z zz z z z z z
3 z/ z28
, 15. How should you clear the roots from a construction site?
z z z z z z z z z
…Ans>>: Clear roots to 12"below grade.
z z z z z z
16. Dividing watts by amps gives you
z z z z z
…Ans>>: Volts z
17. The most frequent on-the-job roofing accidents are
z z z z z z
…Ans>>: Falls z
18. Which of the following is NOT a type of wood block flooring?
z z z z z z z z z z z
A. Parquet
4 z/ z28
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