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Exercise: Machine Design
📂 Machine Design
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Questions for: Machine Design
The circumferential and longitudinal strains in a cylindrical boiler under internal steam pressure are ε
c
and ε
l
respectively. The change in volume of the boiler cylinder per unit volume will be
A:
ε
c
+ 2ε
l
B:
2ε
c
+ ε
l
C:
ε
c
+ ε
l
2
D:
ε
c
2
+ ε
l
Answer:
B
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Post
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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Post
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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Post
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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Post
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
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