In the thread specification 3/4 - 14 NPT, 3/4 represents _____.
A) 3 to 4 threads per inch
B) the expected makeup length
C) the nominal pipe size
D) the length of the threaded portion of the pipe
[Ques. 2] Once the ferrule has been installed on a copper tube, it _____.
A) cannot be removed without cutting
B) can be removed with a ferrule wedge
C) can be removed with a slight squeeze with pliers
D) can be removed with an adapter for the flaring tool
[Ques. 3] Prior to leak testing, and after the fitting is finger-tight, compression fitting nuts should be initially tightened
_____.
A) one-quarter turn
B) one-half turn
C) one full turn
D) two full turns
[Ques. 4] Which of the following statements is correct?
A) The three most critical items that should appear on all technician documents are the make, model, and
serial number of the unit serviced.
B) Documents completed by a technician cannot be used in legal proceedings.
C) The customers signature on a service ticket is of very little importance.
D) Past service documentation is of little or no value when a system begins having performance problems.
[Ques. 5] The ideal range of temperature drop across the evaporator coil in the cooling mode is _____.
A) 10F to 12F
B) 12F to 16F
C) 14F to 18F
D) 18F to 22F
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