When the unison ring in a variable nozzle (VN) type turbocharger is moved, which of the following changes?  

A. vane pitch
B. pulse frequency
C. inlet flow area
D. bypass flow area


Answer: A

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____________________ can be used in place of a gasket.

Fill in the blank(s) with the appropriate word(s).

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Under the dead load of the arch in Figure P8.25, the hinge at B is expected to displace 3 in. downward. To eliminate the 3-in. displacement, the designers will shorten the distance between supports by moving support A to the right. How far should support A be moved?

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Where should the clutch pedal be positioned while the internal adjusting ring of a pull-type clutch is being turned during a clutch adjustment?

A. fully depressed B. fully released C. depressed as far as clutch brake engagement D. depressed far enough to remove the free play

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According to the American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE), the minimum vacuum level in a system should be __________ microns. 

A. 1,000 B. 2,000 C. 3,000 D. 5,000

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