Air Conditioning 2

air-conditioning-2

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200715

180

block

Forward curved centrifugal fans:

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200716

180

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Belt guards are required on _________

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200717

180

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In an industrial air washer, what is in place to prevent water droplets from being carried away in the airstream?

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200718

180

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Losses from bare ducts do not need to be in the loss calculations when the bare duct is __________.

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200719

180

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Air leakages from ducts have been found to vary from 5% to 30%, depending on _________.

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200720

180

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The fan that discharges maximum air delivery at the lowest power requirement and is used mainly to produce large air movements at low pressures is the:

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200721

180

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Humidifying units that use a small fan to draw warmer air from the furnace plenum or from the room force the air through the wetted pad and return the air to the room, are called:

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200722

180

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"Slips and locks" refers to _________

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200723

180

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The most economical A.C. fan to move a large volume of air at a low pressure is:

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200766

180

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Which of the following statements about coil surfaces is false?

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200767

180

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When a fan outlet is considered fully open which of the following statements is true?

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200768

180

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Which of the following statements about duct leakage losses is true?

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200769

180

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Air louvers

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200770

180

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When comparing the tube axial fan with the vane axial fan the

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200771

180

none

Specific volume on a psychrometric chart:

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