____ shapes are used for most beams and columns in steel-frame buildings.
A. C
B. L
C. S
D. W
Answer: D
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Which of the following will shorten the life of a filament in an incandescent lamp?
a. Operating at cooler temperatures b. Operating at warmer temperatures c. Frequently turning it on and off d. The use of a photosensor
In choosing material for a girder, the green designer may see some benefits in using ____ instead of built-up lumber girders or steel girders.
A. PVC B. LVL C. plywood D. cast iron
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A) The vehicle will receive an 80% pass rate B) The vehicle will pass the test C) The vehicle will fail the test D) None of these
Hybrid electric vehicles usually require special engine oil of what viscosity?
A) SAE 5W-40 B) SAE 0W-20 C) SAE 10W-30 D) SAE 5W-30