The copper tubing used in the field piping of refrigeration systems is type ____________________.
Fill in the blank(s) with the appropriate word(s).
ACR
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A triangular shape with a base of 15” and a height of 7” is cut from sheet metal. What is the shape’s area, in square inches?
Which of the following is a true statement about the effects of automation on employees?
a. While there will be a loss of jobs at first, in the long term more jobs will be created than are lost. b. The majority of the workers will lose their jobs when automation is used. c. More employees will be needed immediately after the automation is implemented, but eventually the number required will decrease. d. There is no way to judge before implementation how many workers will be needed. e. Many of the workers now performing the jobs will be unable to perform the new automated jobs and therefore will be fired.
Technician A says that low battery voltage can cause driveability problems. Technician B says that the charging voltage should be over 15 volts when the engine is idling. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
How does a power burner differ from an atmospheric burner?
A) An atmospheric burner has a fan used to force air into combustion. B) A power burner uses air forced into the combustion area by a fan. C) Atmospheric burners are rarely used today. D) Power burners are primarily for residential use.