The technician should never block the vacuum pump exhaust port because blocking this port can cause the __________ in the pump to reach unsafe levels.
A) ballast
B) gas
C) oil
D) pressure
Correct Answer:
Verified
Q6: At a gauge pressure of 28.9"Hg, the
Q7: During the evacuation process, _of the system
Q8: Vacuum pumps are intended to be used
Q9: The presence of acid in the system
Q10: Some manufacturers recommend draining the oil from
Q12: When the system is being evacuated and
Q13: In a vacuum of 29.92"Hg, the micron
Q14: For most residential systems, a _ cfm
Q15: How often should the vacuum pump oil
Q16: If moisture is not removed from the
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