The most common type of electric discharge lamp is the ____ lamp.
A. incandescent
B. high energy discharge
C. fluorescent
D. commercial
Answer: C
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The inner tube of heat exchangers of water-source heat pumps have extended surfaces called ____________________, which increase the surface area for better heat transfer.
Fill in the blank(s) with the appropriate word(s).
Ground-fault protection of equipment shall be provided for solidly grounded wye electric services of more than 150 volts to ground but not exceeding ____ volts phase-to-phase for each service disconnect rated 1000 amperes or more.
A. 500 B. 600 C. 750 D. 1000
After a disc brake pad replacement, the brake pedal went to the floor the first time the brake pedal was depressed. The most likely cause was ________
A) Lack of proper lubrication of the caliper slides B) Air in the lines C) Normal operation D) Improper disc brake pad installation
Class E helmets offer voltage protection to __________________________ volts.
What will be an ideal response?