An electrical conductor is an element with ________ electrons in its outer orbit.
A) Less than 2
B) Exactly 4
C) Less than 4
D) More than 4
C) Less than 4
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The second virial coefficient (B) describes what about a system? Why is it normally negative?
What will be an ideal response?
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Technician A says that a breakout box is sometimes required to diagnose an older antilock braking system. Technician B says that a breakout box requires the use of a digital multimeter. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
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What is a perfect vacuum?
What will be an ideal response?
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Which of the following refrigerant conversions is not considered a drop-in?
A) HFC-134a for HCFC-22 B) HCFC-409A for CFC-12 C) HFC-407C for HCFC-22 D) HCFC-123 for CFC-11
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