As an air-conditioning and refrigeration technician, which of the following states of matter will you use in your job?
A) Liquid and solid B) Gas and liquid
C) Solid, liquid, and gas D) Solid only
C
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Resistors are commonly used to perform two functions in a circuit: to limit the flow of current through the circuit and ____.
a. to produce a voltage divider b. to separate points in a circuit c. to produce a watt divider d. to separate field effects
Name the device, usually threaded, that displaces the material around a mounting hole when pressed into a properly sized drilled or punched hole. This pressing or squeezing process causes the displaced sheet material to cold flow into a specially designed annular recess in the shank or pilot of the fastener. A serrated clinching ring, knurl, ribs, or hex head prevents the fastener from rotating in the metal when tightening torque is applied to the mating screw or nut.
What will be an ideal response?
What is the lighting load on a 120V circuit for six 100W incandescent lights and four fluorescent fixtures with a ballast rating of 1.5A, all operating continuously for 8 hours per day?
a. 10.50A b. 11.20A c. 13.75A d. 15.60A
?Which of the following is not part of the labor cost?
A. ?benefits B. ?overtime C. ?tool rental D. ?hourly rate of pay