Chapter 127 Flashcards

0
Q
Centrifugal fans are classified as:
A) backward inclined
B) straight
C) backward inclined with airfoil blades
D) forward curved
E) all of the above
A

E) all of the above

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1
Q
Which of the following is not a centrifugal fan?
A) backward inclined fan wheel
B) forward curved fan wheel
C) the propeller fan
D) radial blade fan
E) backward inclined airfoil blade fan
A

C) the propeller fan

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2
Q

Control of the static pressure and horsepower requirements at a given speed is obtained by using a/an _____.

A

Variable inlet vane control

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3
Q

Velocity pressure exerted by the air is measured by connecting the upstream leg of a ______ with the opening facing the air flow in the air duct.

A

Manometer

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4
Q

A centrifugal type of fan is best suited to move large volumes of low pressure air.
A) true
B) false

A

B) false

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