Name four different methods for heating water in a boiler heating system.
What will be an ideal response?
fossil fuel, heat pumps, electric heating elements, solar energy
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The purpose of lime in stucco mix is to impart plasticity and cohesiveness to the mix. What does plasticity and cohesiveness of mix mean?
What will be an ideal response?
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Variable valve timing can be found on which type of engine?
A) SOHC B) DOHC C) Cam-in-block D) All of the above
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Mulching plants will insulate them from the cold and protect them from drying out
in the heat.
Indicate whether the statement is true or false.
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To check the performance of a dry-type evaporator, the service technician would first make sure that the refrigerant coil is operating with enough liquid inside.
Answer the following statement true (T) or false (F)
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