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HVAC Unit 12 Exam Study Guide Questions And Answers With Verified Solutions Already Passed!!!
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HVAC Unit 12 Exam Study Guide Questions And Answers With Verified Solutions Already Passed!!!
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HVAC Unit 12 Exam Study GuideQuestions And Answers With Verified
Solutions Already Passed!!!
If five electrons combine with three protons, the net charge will be ___. -
ANSWER✔✔ A) Negative
As loads are added in parallel circuit, the total resistance of the circuit ___. -
ANSWER✔✔ B) will decrease
If two light bulbs are wired in series and one bulb burns out, the other bulb will
___. - ANSWER✔✔ A) go out
What happens to the current in a circuit if the resistance is increased? -
ANSWER✔✔ C) The current will decrease.
What type of charge does an electron have? - ANSWER✔✔ B) negative
What part of an atom moves from one atom to another? - ANSWER✔✔ C)
electron
Typical insulators are___. - ANSWER✔✔ C) glass, rubber, plastic
To find the watts in an electrical circuit, you multiply ___. - ANSWER✔✔ C)
volts and amperes
, An ampere is ___. - ANSWER✔✔ B) A measure of the quantity of electrons
flowing past a point in the electrical circuit in a given time.
The compressor motor and the condenser fan motor are wired in ___. -
ANSWER✔✔ A) parallel
An element in an electric heating unit is applied to a 232-volt power supply. The
current flow through the element is 19 amperes. What is the resistance of the
element? - ANSWER✔✔ C) 12 ohms
If a conductor carrying electrical current is formed into a coil, the magnetic field
around the coil will ___. - ANSWER✔✔ B) increase
If three bulbs are wired in parallel and one bulb burns out, the total current of the
circuit will decrease. - ANSWER✔✔ True
The main purpose of a rectifier is to convert direct current (DC) to alternating
current (AC). - ANSWER✔✔ False
As the diameter of a wire increases, the resistance will also increase. -
ANSWER✔✔ False
When calculating the total resistance of a parallel circuit, the result will always be
lower than the lowest resistance. - ANSWER✔✔ True
If a conductor carrying electrical current is formed into a coil, the magnetic field
generated by the wile will increase. - ANSWER✔✔ True
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