___________________ are used when hydraulic lines must be frequently connected and disconnected.
Fill in the blank(s) with the appropriate word(s).
Quick couplers
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____ is the difference in temperature at the sensing element between make and break of the controller’s contacts when the controller is cycled.
a. Resolution sensitivity b. Operating differential c. Sensitivity d. Response time
Photographs used for projected presentations should be at least _____ pixels per inch
a. 20 b. 72 c. 300 d. 720
Day length varies with latitude
Indicate whether the statement is true or false
What is a “cascade” system?
a. The low temp system evaporator cools the condenser of the high temp system. b. The high temp system evaporator cools the condenser of the low temp system.