Which gas is generally considered to be the rich indicator? (The higher the level of this gas, the richer the air-fuel mixture.)
A) HC B) CO C) CO2 D) O2
B
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A vertical movement of the camera is a:
a. pan b. tilt c. wipe d. zoom
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A power supply outputs 25 W into a load. The power supply input voltage is 115 V and the input current is 0.5 A. What is the efficiency of the power supply?
What will be an ideal response?
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When installing a joist, end-nail it to the header joist and toenail it to the _____
a. subfloor b. top plate c. sill plate d. bottom pla
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The ____ assumes that not all lights will be on at the same time, so the lighting load can be reduced.
A. electrical plan B. distribution panel C. circuit breaker D. demand factor
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