The refrigeration compressor motor can be operated at about ____% over its rated capacity without harm during the pulldown.
A. 5
B. 10
C. 15
D. 20
Answer: B
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Because of its design, a diaphragm compressor is especially well suited for use in what types of service? (select all that apply)
a. Toxic gas service b. Laboratory applications c. Wastewater treatment d. Food and beverage industry
What type of reciprocating pumps displaces liquid using a plunger and is very similar to piston pumps?
A. Piston pumps B. Plunger pumps C. Diaphragm pumps D. Rotary pumps
Insects are different from other animals in that they can physically change form at different stages of their lives
Indicate whether the statement is true or false
All of the following are included in the definition of plumbing except
A. storm water drainage facilities. B. all piping, equipment, or material used exclusively for environmental control. C. medical gas and medical vacuum systems. D. indirect waste piping including refrigeration and air conditioning drainage.