Leaks on the low side of a Type III system are indicated by:
A) Increased purge operation.
B) Puddles of refrigerant on the floor around the machine.
C) Lower-than-normal system pressures.
D) Oil stains around the leak from oil carried with the leaking refrigerant.
A
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The basic purpose of switchgear is to _____.
a. provide protective grounding for equipment b. provide power system protection by automatically isolating faulty components c. provide a grounding system for AC systems between 50V and 1,000V d. insulate conductors from hazardous atmospheres
What helps prevent water pump cavitation?
A) Using the correct water pump B) Using the specified radiator cap C) Using the specified brand of heater hose D) Use a higher output water pump
Honey consumed in the United States is produced in the United States and imported from several countries
Indicate whether the statement is true or false
Numerous layer 2 transmission protocols:
A) are usually defined as being either connection-oriented or connectionless B) frame or format the information per standards C) are used to route data information from device to device D) all of the above