List operational checks to make during an air conditioning planned maintenance service call
What will be an ideal response?
Check for voltage drop in power wire, voltage drop across contactor contacts, amp draw, airflow, system pressures, superheat, subcooling, temp drop across evaporator coil.
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A sacrificial anode on a gas water heater should be replaced when its diameter decreases to _____.
a. 1-1/8 inches b. 7/8 inch c. 5/8 inch d. 3/8 inch
When the refrigerant vapor is saturated with heat it is known as a(n) ____________________.
Fill in the blank(s) with the appropriate word(s).
Technician A says that diesel engine speed is controlled by changing the amount of intake air. Technician B says that diesel engine speed is controlled by changing the amount of fuel delivered. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
A ____ is a cold-rolled angle attached to the concrete floor of the building that provides a continuous base to which the bottom of the sheeting panel can be attached.
A. base angle B. base-panel angle C. floor-panel angle D. sheeting angle