Which of the following is a condition of an air conditioning system that is undercharged?

A. increased possibility of floodback to the compressor
B. higher operating pressures
C. low operating pressures
D. reduced evaporator superheat


Answer: C

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To process a submittal, a supervisor follows general guidelines that include all of the following except _____.

a. evaluating the submittal package and compiling a list of lessons learned b. sending the submittal package to authorized individuals for review c. date stamping all submittal packages received on the company’s behalf d. entering the information into a submittal log for authorized access

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? Identify and state the historical significance of Thomas Edison.

What will be an ideal response?

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A key consideration in representing _____ stairs is to define the center point for the stair radius.

A. straight run B. spiral C. L-shaped D. circular

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A small DC motor uses a permanent magnet to develop the field flux. Would the motor reverse direction of rotation if the power supply leads were reversed? ____________________ (yes, no)Would the results be the same if a shunt motor which uses an electromagnet to develop the flux had the power leads reversed? ____________________ (yes, no)

Fill in the blank(s) with the appropriate word(s).

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