Some gaskets use a steel washer around each bolt hole. The purpose of this washer is to _________
A) Help seal around the bolt hole
B) Improve the strength of the gasket
C) Prevent the gasket from being compressed too much
D) Help prevent the gasket from shrinking
C
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A heat recovery ventilator is more energy efficient than a balanced ventilation system consisting of an exhaust blower and a supply air blower because:
A) It recovers energy from the system blower. B) It recovers energy from the compressor. C) It recovers energy from the attic. D) It recovers energy from the exhaust air.
Binary digits are called bits
Indicate whether the statement is true or false
Technician A says one component of the secondary ignition circuit is the coil. Technician B says the coil is a component in the primary ignition circuit. Who is correct?
A. Technician A B. Technician B C. Both A and B D. Neither A nor B
A compressor that uses an impeller to throw refrigerant from the center outward is a:
A) Screw compressor. B) Centrifugal compressor. C) Scroll compressor. D) Rotary compressor.