How can many water-source heat pump systems be configured to supply hot domestic water?
A) By using de-superheating coils and water-circulating pumps built into many systems
B) By adjusting the load EWT and LWT levels to a higher temperature, which ensures enough water for heating and domestic use
C) By adjusting the power of the condenser and heat pump
D) By lengthening the evaporator coil and attaching it to an electric hot-water heater
A
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A type of one-way clutch that uses struts and notches, instead of rollers or sprags, is called a ________.
A) Reverse ratchet clutch B) Mechanical diode C) Roller-sprag clutch D) None of these
Common components of soilless media are peat, sand, and _____
A) pine bark B) pine needles C) wood shavings D) dirt
Radiation freezes are accompanied by wind and can be overcome by proper site selection
Indicate whether the statement is true or false
The AWS and ASME classification and specifications are often found on a ________ attached to the spool of wire
A) Flyer B) Twist connector C) Work order from the supervisor D) Tag E) All of the above