Exercise: Machine Design

Questions for: Machine Design

For general industrial machinery, the ratio of the length of journal to its diameter is taken as
A:
0.5 to 1
B:
1 to2
C:
3 to 5
D:
5 to 10
Answer: B
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According to Clavarino's equation, the thickness of a cylinder is equal to (where d = Inner diameter of cylinder, p = Internal pressure, and μ = Poisson's ratio. )
A:
B:
C:
D:
none of these
Answer: A
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The square threads are usually found on
A:
spindles of bench vices
B:
railway carriage couplings
C:
feed mechanism of machine tools
D:
screw cutting lathes
Answer: C
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Guest's theory is used for
A:
brittle materials
B:
ductile materials
C:
elastic materials
D:
plastic materials
Answer: B
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A steel containing 0.8% carbon is known as
A:
eutectoid steel
B:
hyper-eutectoid steel
C:
hypo-eutectqid steel
D:
none of these
Answer: A
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