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HVAC Electrical ESCO Questions And Answers With Verified Solutions Already Passed!!!
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HVAC Electrical ESCO Questions And Answers With Verified Solutions Already Passed!!!
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HVAC Electrical ESCO Questions AndAnswers With Verified Solutions Already
Passed!!!
Impededance
a. Opposition to alternating current flow.
b. Electrical pressure.
C. Amperage.
d. Voltage applied to the circuit. - ANSWER✔✔ a. Opposition to alternating
current flow. (All types of resistance combined)
Like Charges
a. Attract one another.
b. Repel each other.
c. Are negative.
d. Are positive. - ANSWER✔✔ b. Repel each other.
Any material that will readily release electron called:
a. An insulator.
b. conductor.
c. A resistance.
d. A neutron. - ANSWER✔✔ b. conductor.
Which of the following materials would be best suited for use as a semi-conductor?
a. Copper.
b. Bakelite.
C. Aluminum.
d. Silicon. - ANSWER✔✔ d. Silicon.
Which of the following is generally considered to be within the maximum
allowable (plus or minus) supply voltage variation?
a. 5%.
b. 15%.
, C. 20%.
d. 30%. - ANSWER✔✔ a. 5%.
In electrical wiring, a black colored wire in an alternating current circuit usually
indicates:
a. The hot conductor.
b. The neutral conductor.
C. The ground conductor.
d. The safety conductor. - ANSWER✔✔ a. The hot conductor.
Fuses are sized by:
a. Amps & watts.
b. Volts & watts.
C. Watts & ohms.
d. Volts & amps. - ANSWER✔✔ d. Volts & amps.
What would be the result, if a 24 volt, 20 - ohm low voltage contactor coil were
wired in series with a 24 volt, 200-ohm control relay coil?
a. Neither the contactor nor control relay would operate.
b. Only the control relay would operate.
c. Only the contactor would operate.
d. Both the contactor and control relay would operate. - ANSWER✔✔ c. Only the
contactor would operate.
What is the term used to describe the output side of a transformer?
a. Low inductive side.
b. High inductive side.
c. Primary side.
d. Secondary side. - ANSWER✔✔ d. Secondary side.
One horsepower is equal to
a. 3415.
b. 746.
c. 1200.
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