____ boards are plastic foams that have been produced in board form at a factory.
A. Rigid
B. Black
C. Flexible
D. Foam
Answer: A
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A typical fast food restaurant produces about 230 pounds of solid waste per day
Indicate whether the statement is true or false
How should a refrigerant cylinder be warmed up during service?
A) Place the cylinder in a 350°F oven. B) With live steam if available. C) Use an open flame in an area that is vented outdoors. D) With warm water not over 125°F.
How does natural gas move through pipelines from the well head to the end user thousands of miles away?
A) Natural gas moves naturally through the pipes because it is lighter than air. B) Solar energy is used to operate electric fans that help move the gas through the pipelines. C) Large compressor pumping stations move the gas through the pipelines under high pressure. D) Natural gas moves through the pipelines due to the extreme pressure on natural gas underground.
After adding refrigerant to a nonpressurized container used with a system-dependent recovery device, the pressure of the container will:
A) Remain at 0 psig. B) Decrease in proportion to the refrigerant added. C) Increase to the saturation point. D) Increase in proportion to the amount of refrigerant added.