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Machine Design

Machine Design
The lead angle of a worm is 22.5°. Its helix angle will be

67.5°
45°
90°
22.5°

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Machine Design
When a beam of rectangular cross-section of width b and depth d, is subjected to a shear force F, the maximum shear stress induced will be

2F/bh
3F/2bh
F/bh
4F/bh

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Machine Design
Which of the following coupling is used to connect two shafts which have both lateral and angular misalignment?

Bushed pin type coupling
All of these
Universal coupling
Oldham coupling

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Machine Design
The constant factor in case of R10 series of preferred numbers is

1.26
1.12
1.58
1.06

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Machine Design
The bending moment ‘M’ and a torque ‘T’ is applied on a solid circular shaft. If the maximum bending stress equals to maximum shear stress developed, then ‘M’ is equal to

2 T
4 T
T/2
1 T

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

Low
None of these
Medium
High

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