A compressor can be removed from an air conditioning system without removing all the refrigerant from the system if ________ are used.
A. Schrader valves
B. R-134a style refrigerant valves
C. Stem type service valves
D. Manifold service valves
Answer: C
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How was Sir William Grove’s device constructed?
What will be an ideal response?
Before repairing or replacing any system components, all accumulators must be ________
A) isolated B) lowered C) purged D) discharged
Shipments of paper rolls that weigh less than 2,268 kg (5,000 lbs), and paper rolls that are unitized on a pallet
A. must be blocked on the trailer B. must be loaded individually C. may be secured in accordance with general cargo securement rules D. all of the above
Electrical equipment such as switchboards, switchgear, panelboards, industrial control panels, meter socket enclosures, and motor control centers, that are in other than dwelling units, and are likely to require _____ while energized, shall be field or factory marked to warn qualified per-sons of potential electric arc-flash hazards.
What will be an ideal response?