Match the leak detection tool to its function.
A. reacts to the sound of the escaping gas
B. enables the technician to read both saturation temperatures and pressures within the system
C. is able to sense very small amounts of refrigerant in air samples
D. uses an open flame to detect leaks of chlorinated refrigerants
E. is brushed onto the piping circuit, primarily at solder joints
F. relies on a dye that is added to the system
A. ultrasonic leak detector
B. gauge manifold
C. electronic leak detector
D. halide leak detector
E. soap bubbles
F. ultraviolet leak detection
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Answer the following statement(s) true (T) or false (F)
Pipe should be restrained on the ends to prevent noise.
What type of valve is often used at the bottom of a cyclone?
A. Gate B. Trickle C. Rotary D. Butterfly
To select a buck-and-boost transformer, use _____.
a. tables listed in the NEC® b. standard electrical calculations c. system measurements d. charts provided by the manufacturer
PROBLEM 3.93
A 1.25-in.-diameter solid rod is made of an elastoplastic material with Knowing that the elastic core of the rod is 1 in. in diameter, determine the magnitude of the applied torque T.