Liquid entering the compression chamber of a reciprocating compressor can lead to ____.
A. damaged valves
B. damaged piston rings
C. damaged expansion valves
D. Both a and b.
Answer: D
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The humidistat ____ if the humidity should become too high or too low.
a. activates a sound alarm b. produces a change in color c. sets the system off d. activates a set of contacts
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Pacing describes the _____ of a program, as perceived by the audience
a. rhythm or speed b. excitement c. entertainment value d. storytelling clarity
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Which type of herbicide is applied to foliage?
a. preemergence c. systemic b. preplant d. contact
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The maximum number of inputs for an inverter is (are)
A) 4 B) 3 C) 1 D) 2
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