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Machine Design

Machine Design
The shear modulus of resilience is proportional to

(Shear stress)⁴
(Shear stress)²
Shear stress
(Shear stress)3

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Machine Design
The gears are termed as medium velocity gears, if their peripheral velocity is

15-30 m/s
3-15 m/s
1-3 m/s
30-50 m/s

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Machine Design
Two shafts of the same length and material are joined in series. If the ratio of their diameters is 2, then the ratio of their angles of twist will be

8
16
2
4

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Machine Design
Auto frettage is the method of

Calculating stresses in thick cylinders
Pre-stressing thick cylinders
Joining thick cylinders
Increasing the life of thick cylinders

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Machine Design
The draw of cotter should not be more than

8 mm
3 mm
6 mm
12 mm

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Machine Design
A spring of stiffness 1000 N/m is stretched initially by 100 mm from the undeformed position. The work required to stretch it by another 100 mm is

10 N-m
15 N-m
5 N-m
7 N-m

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