The derivative mode provides a ____ action when the difference between the set point and measured variable is increasing.

A. boost
B. braking


Answer: A

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Match the pressures in psia to the correct equivalent. (Use 15 as the conversion between psia and psig.)

A. 20 psia B. 0 psia C. 85 psia D. 25 psia E. 10 psia F. 8 psia

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The invention of the refrigerated ____________________ allowed the transportation of meat and fresh produce anywhere in the country anytime during the year

Fill in the blank(s) with correct word

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On a normal air-conditioning system, when the compressor is operating, the evaporator fan and the condenser fan should also be running.

Answer the following statement true (T) or false (F)

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The recirculation door is an example of a ________ actuator

A) Variable-position B) Three-position C) Dual-position D) None of these

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