Rooftop units are often positioned ____ the space that is to be served by the equipment.
A. directly below
B. directly behind
C. directly adjacent
D. directly above
Answer: D
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What should you do before lifting or lowering the hood on a conventional truck?
A. Make sure all hood dampers, springs, and cable stays are attached. B. Check that no one is under the hood before closing. C. Verify that there is sufficient room in front of the truck before opening the hood. D. All of the above.
Technician A says there is no need to lubricate the valve stems upon reassembly. Technician B says intake and exhaust seals are the same materials and shapes. Who is correct?
A. Technician A B. Technician B C. Both technicians D. Neither technician
In a dual dc power supply, the terminal that is common to both voltage sources, is the
A) positive voltage terminal B) negative voltage terminal C) ground terminal D) common terminal
When the air conditioning system is operating, the discharge line should feel hot to the touch.
Answer the following statement true (T) or false (F)