When using the tapping method, the arc should be struck beyond the point where the weld should begin by a distance of about _____.
a. 1/16 to 1/8 inch
b. 1/8 to 1/4 inch
c. 1/4 to 1/2 inch
d. 1/2 to 3/4 inch
Answer: C
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Depressurizing accumulators is being discussed. Technician A says some systems are bled without depressurizing. Technician B says some systems must be depressurized before checking the fluid level. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
What type of units are required to have service valves?
What will be an ideal response?
What does Btu stand for?
a. British temperature unit b. British thermal unit c. British thermocouple unit d. Binary temperature unit
The order of the four main components of the refrigeration cycle is:
A) Compressor - evaporator - condenser - metering device. B) Compressor - condenser - metering device - evaporator. C) Evaporator -condenser - metering device - compressor. D) Condenser - compressor - metering device - evaporator.