An R-22 refrigeration system requires a superheat of 8°F. If the evaporator saturation pressure is 43 psig, what should the bulb temperature be?
A) 51°F B) 8°F C) 35°F D) 28°F
D
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Which method of sizing flat roof drains is designed to remove roof water as quickly as possible using large conductors?
a. siphonic b. controlled-flow c. continuous flow d. longest run
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Five quantities must be known if the machinery is to be set up with the correct pulley sizes.
Answer the following statement true (T) or false (F)
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Most feedlots in this country are situated in the South
Indicate whether the statement is true or false.
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The term ____ is a common term used to describe that the strength of the electro-magnetic field is determined by the number of wire turns in the coil, and the intensity of current flow through the coil.
a. permeability b. electro-magnet c. ampere-turns d. inductor
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