A weeping relief valve on a hot water boiler may be an indication of:
A) Low return water temperature.
B) A water-logged expansion tank problem.
C) A circulating pump that is running continuously.
D) An extinguished pilot light.
B
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The OFC-A process is also known as _____.?
A. cutting? B. bending? C. kindling? D. burning?
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When should a refrigerant identifier should be used?
A) After recharging the system B) Before recharging the system C) After evacuating the system D) Before recovering the system
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On front-wheel-drive vehicles, a differential is located between the rear wheels.
Answer the following statement true (T) or false (F)
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Which grade is further divided into five other categories?
a. select c. dimension b. common d. none of the above
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