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Machine Design

Machine Design
Crushing resistance required to crush the rivet per pitch length is

p.t.σc
p.d.σc
n.d.t.σc
(p - d) t.σc

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Machine Design
In radial cams, the follower moves

Along the cam axis
In any direction irrespective of cam axis
In a direction perpendicular to the cam axis
In a direction parallel to the cam axis

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Machine Design
The condition for maximum power transmission is that the maximum tension in the flat belt should be equal to (Where, Pc = tension in belt due to centrifugal force)

2 Pc
1 Pc
Pc/3
3 Pc

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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

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

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Machine Design
In helical bevel gearing, the axes of shafts are __________ and the teeth are curved.

Intersecting and non-parallel
None of these
Non-intersecting and non-parallel
Intersecting

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Machine Design
The efficiency of a square threaded screw is maximum if the helix angle is equal to(Where φ = Angle of friction)

45° + φ/2
45° - φ
90° - φ
45° - φ/2

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