When charging a system with vapor refrigerant from a refrigerant cylinder the cylinder will become ____.

A. cold
B. very warm
C. the same temperature as the ambient air


Answer: A

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A safety coordinator’s job duties include _____.

a. ensuring each employee is equipped with a first aid kit b. having at least ten employee comments on safety conditions c. notifying superiors of any hazards posing a threat of serious injury d. informal listing of potential hazards on yearly safety report

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Which of the following types of engine brake uses hydraulic retarding?

A. Jacobs internal brakes B. Mack Trucks Dynatard C. Caterpillar BrakeSaver D. PacBrake

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If parking a tractor on a grade, the tractor should be parked _____

a. at a 25-degree angle to the grade or slope b. at a 45-degree angle to the grade or slope c. at a right angle to the grade or slope d. parallel to the grade or slope

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The federal standard for faucets sets a maximum flow rate of ____ gallons per minute on private use lavatory, sink, and showerhead faucets.

A. 0.5 B. 1.5 C. 2.0 D. 2.5

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