How is the energy efficiency ratio (EER) calculated?
A) The input in watts is added to the output in Btuh.
B) The output in Btuh is divided by the input in watts.
C) The output in Btuh is multiplied by the input in watts.
D) The input in watts is divided by the output in Btuh.
[Ques. 2] Why is the cost of owning a green building often less than the cost of owning a conventionally constructed building?
A) Mortgage rates for green construction are subsidized by the federal government.
B) The utility and maintenance costs are less.
C) Green buildings typically cost less per square foot to construct.
D) Green colors reflect excess heat away from the building.
[Ques. 3] Constant-air-volume systems can deliver different levels of heating or cooling:
A) By blocking registers in rooms that are not being used.
B) By varying the speed of the constant-volume blower.
C) By reheating the cool air with strip heat.
D) By using variable-air-volume mixing boxes.
[Ques. 4] How do technicians adjust inshot burners in high-efficiency furnaces?
A) Airflow only is modified. B) Timers are adjusted.
C) Combustion speed is slowed. D) Gas pressure only is adjusted.
[Ques. 5] How many blower motors does a window air conditioner have?
A) One - a single double-shafted blower motor is used for both the evaporator and condenser fans.
B) Two - a low-speed blower motor and a high-speed blower motor.
C) None - window air conditioners do not require a blower motor because they are not connected to a duct system.
D) Two - an evaporator fan motor and a condenser fan motor.
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