What is the purpose of a chiller economizer?
What will be an ideal response?
The purpose is to subcool the liquid refrigerant before it enters the cooler.
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A broken out section does not require a cutting plane line.
a. True b. False
A system in a 90°F room is charged to 100 psig with nitrogen to perform a standing pressure test. When the system pressure is checked later, the room temperature is 70°F. What pressure would you expect to see in the system?
What will be an ideal response?
Which of the following attaches to the vehicle in order to machine the rotor?
A. on-car lathe B. dial indicator C. wear indicator D. disc brake micrometer
What is the likely result of a ladder striking an overhead obstruction while it is being raised?
a. loss of control of the ladder b. sudden collapse of the fly section c. a broken or weakened halyard d. damage to the ladder that is not readily apparent