Which of the following could be the reason that the subcooling would be low on an air conditioning system?

A. dirty or blocked condenser coil
B. system operating in low ambient conditions
C. liquid line restriction
D. noncondensable gas in the system


Answer: A

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Sandblasting is a process that uses compressed air to throw ____________________

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

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The motor will typically draw a maximum of _____________________ times as much current during starting as it will when running under constant full load.

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

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The frequency sweep feature on a function generator is useful for graphically displaying which of the following on an oscilloscope?

A. a square wave with increasing amplitude B. the spectrum of a signal C. a square wave with decreasing amplitude D. a sine wave of fixed frequency E. the frequency response of a circuit

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If you have a spur gear with a friction wheel of diameter equal to .25 at 210 rpm, what is the velocity?

a. 52 ft/min b. 78 ft/min c. 116 ft/min d. 165 ft/min e. 189 ft/min

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