The main cause of high condensing temperature and pressure in air-cooled condensers is:
A) Operating the condenser at low ambient temperatures without head pressure controls.
B) Dirty condensers.
C) Excessive airflow over the condenser.
D) Refrigerant undercharge.
B
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What will be an ideal response?
What problems can be caused by overlubricating a blower motor?
A) The motor would run more effectively with the extra lubrication. B) This could eventually cause the motor windings to short out. C) The blower motor could run faster than specifications recommend. D) It is not possible to overlubricate a motor.
The spark plugs are fired at:
A. various times on the power stroke B. 12 degrees BTDC on the compression stroke C. 12 degrees ATDC on the power stroke D. various times on the compression stroke
Precast concrete ____ obtain the information they need to prepare framing plans from architectural plans, engineers' sketches, or contractors' sketches.
A. CAD technicians B. CAD managers C. checkers D. drafting clerks