Exercise: Machine Design

Questions for: Machine Design

A feather key is generally
A:
loose in shaft and tight in hub
B:
tight in shaft and loose in hub
C:
tight in both shaft and hub
D:
loose in both shaft and hub
Answer: B
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The contact ratio for gears is
A:
zero
B:
less than one
C:
greater than one
D:
none of these
Answer: C
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When an open coiled helical compression spring is subjected to an axial compressive load, the stress induced in the wire is
A:
tensile stress
B:
compressive stress
C:
shear stress
D:
bending stress
Answer: C
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The algebraic difference between the maximum limit and the basic size is called
A:
lower deviation
B:
upper deviation
C:
actual deviation
D:
mean deviation
Answer: B
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A flange coupling is used to connect two shafts
A:
which are perfectly aligned
B:
which are not in exact alignment
C:
have lateral misalignment
D:
whose axes intersect at a small angle
Answer: A
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