Exercise: Machine Design

Questions for: Machine Design

A key way lowers
A:
the strength of the shaft
B:
the rigidity of the shaft
C:
both the strength and rigidity of the shaft
D:
the ductility of the shaft
Answer: C
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According to maximum shear stress theory, the maximum shear stress in the shaft is
A:
B:
C:
D:
Answer: A
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A locking device extensively used in automobile industry is a
A:
jam nut
B:
castle nut
C:
sawn nut
D:
ring nut
Answer: B
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The design of shafts made of brittle materials is based on
A:
Guest's theory
B:
Rankine's theory
C:
St Venant's theory
D:
VonMises theory
Answer: B
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The diameter of knuckle pin in a knuckle joint is usually taken as (where d = Diameter of the rod)
A:
0.5 d
B:
0.8 d
C:
d
D:
1.2 d
Answer: C
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