A fan relay (FR) circuit is designed so that a switch can be used to turn the circuit completely off, operate the fan manually, or ____.
a. operate the fan by remote control
b. permit the fan to be operated by a thermostat
c. turn on a warning light
d. automatically reset the fan
b. permit the fan to be operated by a thermostat
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Technician A says the gas tank should be full before performing a wheel alignment. Technician B says excessive steering wheel free play should be corrected before a wheel alignment. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
A side-by-side analysis of the plumbing and electrical drawings should include which of the following elements?
a. plumbing equipment that requires electrical connections b. conflicts and interferences c. special requirements for electrical information or instructions required to be furnished by the plumbing contractor d. all of the above
During the initial startup of a geothermal water source heat pump, when should the water flow be checked and adjusted?
A) after checking the system refrigerant pressures and amp draw B) after operating the unit for at least 15 minutes C) first, before operating the system D) after making sure the refrigerant charge and airflow are correct
Animals are more dangerous when being loaded onto or unloaded from trailers because they are:
A. excited B. stressed C. confused D. all answers are correct