Match the thermostatic expansion valve component with its function and/or description.

A. brings evaporator outlet pressure into the valve
B. used to secure the thermal bulb to the suction line
C. contains the diaphragm, valve tag, and thermal bulb
D. senses evaporator outlet temperature
E. determines the amount of superheat that a valve will maintain
F. holds valve's components together while providing ports to connect system's refrigerant lines
G. contains superheat spring, needle (pin) and seat, superheat spring adjusting gear
H. moves in and out of the seat to modulate refrigerant flow into the evaporator


A. external equalizer port
B. copper strap
C. powerhead assembly
D. thermal bulb
E. superheat spring
F. valve body
G. cage
H. needle (pin)

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On the following drawing control the reflux flow.

What will be an ideal response?

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Answer the following statement true (T) or false (F)

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Answer the following statement true (T) or false (F)

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Regulation of technical drawing practices ensures:

A. the quality of technical drawings B. that the design process is followed accurately C. that technical drawings can be easily understood D. that all those using graphic communication use the same language

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