When evacuating a system, the technician should __________ operate the compressor while the system is in a deep vacuum.
A. always
B. occasionally
C. never
Answer: C
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Technician A says that vacuum is usually measured in psi. Technician B says vacuum is usually measured in inches of mercury (Hg). Who is correct?
A) Both technicians A and B B) Neither technician A nor B C) Technician A only D) Technician B only
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The residual check valve maintains between 20 and 60 psi in the brake lines
Indicate whether the statement is true or false
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What is the inductive reactance of a 0.2 mH inductor operating at 1 kHz?
A) 1.26 k? B) 126 ? C) 126 k? D) 1.26 ?
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Why does a starter motor use multiple armature segments?
A. To increase maximum rpm. B. To reduce current draw under load. C. To produce uniform constant torque. D. To maximize heat transfer from the rotor.
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