In refrigeration and air conditioning, loads are normally wired:
A) Either in series or in parallel with each other. B) In series with each other.
C) In parallel with each other. D) In parallel with the switches controlling them.
[Ques. 2] Why is it necessary to use special methods when recovering from Type III systems?
A) Most of these systems are very small-scale. B) Most of these systems utilize toxic chemicals.
C) Most of these systems are chillers. D) Most of these systems are very low pressure.
[Ques. 3] Electrons are:
A) Negatively charged particles located in the outer part of the atom.
B) Negatively charged particles located in the center of the atom.
C) Positively charged particles located in the outer part of the atom.
D) Positively charged particles located in the center of the atom.
[Ques. 4] The electromotive force that causes electrons to move along a conductor is called:
A) Capacitance. B) Voltage. C) Amperage. D) Resistance.
[Ques. 5] Why does the compressor on a leaking system become overheated?
A) It is a result of unbalanced lines. B) There is too much coolant overworking it.
C) It is an overworked system. D) There is a reduced amount of coolant.
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