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Machine Design

Machine Design
The expansion joint is mostly used for pipes which carry steam at __________ pressures.

Low
High
Medium
None of these

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Machine Design
The modulus of elasticity for mild steel is approximately equal to

110 kN/mm²
210 kN/mm²
80 kN/mm²
100 kN/mm²

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Machine Design
According to I.B.R., the efficiency of a triple riveted butt joint with double straps of unequal width (5 rivets per pitch length) should be

80 to 90%
45 to 60%
70 to 83%
63 to 70%

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Machine Design
For high speed engines, the cam follower should move with

Uniform velocity
Cycloidal motion
Simple harmonic motion
Uniform acceleration and retardation

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Machine Design
The bending stress in a curved beam is

Maximum at the neutral axis
Zero at the point other than centroidal axis
Zero at the centroidal axis
None of these

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Machine Design
The tension on the slack side of the belt is __________ the tension on the tight side of the belt.

Less than
Equal to
None of these
Greater than

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