Exercise: Machine Design

Questions for: Machine Design

The circumferential and longitudinal strains in a cylindrical boiler under internal steam pressure are εc and εl respectively. The change in volume of the boiler cylinder per unit volume will be
A:
εc + 2εl
B:
c + εl
C:
εc + εl2
D:
εc2 + εl
Answer: B
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The size of a gear is usually specified by
A:
pressure angle
B:
pitch circle diameter
C:
circular pitch
D:
diametral pitch
Answer: B
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The backlash for spur gears depends upon
A:
module
B:
pitch line velocity
C:
tooth profile
D:
both (a) and (b)
Answer: D
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The rolling contact bearings are known as
A:
thick lubricated bearings
B:
plastic bearings
C:
thin lubricated bearings
D:
antifriction bearings
Answer: D
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In a flange coupling, the thickness of flanges is taken as one-half the diameter of shaft.
A:
Agree
B:
Disagree
C:
D:
Answer: A
No answer description is available. Let's discuss.
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