Which is the correct depth bore size in inches for an internal general purpose 2-1/2 - 3 Acme thread?
A) 2.3333 in. B) 2.470 in. C) 2.1667 in. D) 1.9876 in.
C
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Starter motors can be safely operated for two minute intervals, provided a 30 second period between crank attempts to permit the motor to cool is observed.
Answer the following statement true (T) or false (F)
A built-up roof (BUR) consists of multiple plies where a ply is defined as one felt field mopped with asphalt. The thickness of one BUR ply is approximately 30 mil. A modified bitumen roof (MBR), on the other hand, consists of modified bitumen sheets. What is the composition of a modified bitumen sheet and its typical thickness?
What will be an ideal response?
Which relay terminal is the normally closed (NC) terminal?
A) 87 B) 87a C) 85 D) 30
Which of the following are used to separate and collect some of the oil in the discharge line as it leaves the compressor and then return it to the compressor's crankcase?
A) Oil separators B) Water separators C) Heat separators D) Refrigerant separators