In the accompanying figure, the item identified as number 1 is the ____ pattern.
A. diamond
B. hatch
C. hash
D. straight line
Answer: A
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In a geothermal heat pump system, there is a refrigerant loop and a water (water and antifreeze) loop.
Answer the following statement true (T) or false (F)
Who provides essential safety equipment for employees?
A. insurance company representatives B. OSHA representatives C. employers D. the employees
Where does the converter/cooler/lubrication oil circuit originate?
A. pressure regulator valve B. selector valve C. governor D. modulator
What is the purpose of TEV sensing bulbs with a limited, or gas charge?
A) They produce a maximum operating pressure at high operating superheat. B) Gas charged bulbs regulate better with systems experiencing liquid line flash gas. C) They reduce the amount of refrigerant in the system because of the limited charge. D) They save on installation cost by reducing the amount of charge in the TEV bulb.