A pneumatic controller that increases the pressure of its branch line when air temperature in the conditioned
space goes up is called a(n) _____.
a. direct-acting thermostat
b. reverse-acting thermostat
c. graduate thermometer
d. E-P relay
a
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The circular mil area of stranded wire is determined by finding the area of one of the strands and then ____ the number of strands.
a. adding b. subtracting c. multiplying by d. dividing by
In the accompanying figure, how long is distance y? All dimensions are in millimeters. Give your answer to two decimal places.
What will be an ideal response?
Technician A says that bubbles can be seen through the sight glass on an R-134a system even when it is operating normally. Technician B says that many R-134a truck A/C systems are no longer fitted with sight glasses. Who is correct?
a.Technician A only b.Technician B only c.Both A and B d.Neither A nor B
A fastener that uses threads on both ends is called a ________
A) Stud B) Crest fastener C) Cap screw D) Machine screw