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Machine Design

Machine Design
A locking device extensively used in automobile industry is a

Castle nut
Ring nut
Sawn nut
Jam nut

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Machine Design
A double fillet welded joint with parallel fillet weld of length 'l' and leg 's' is subjected to a tensile force 'P'. Assuming uniform stress distribution, the shear stress in the weld is given by

2P/s.l
P/2.s.l
√2P/s.l
P/√2.s.l

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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)

3 Pc
Pc/3
2 Pc
1 Pc

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Machine Design
A cotter joint is used to connect two __________ rods.

Co-axial
Perpendicular
None of these
Parallel

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Machine Design
The product of the diametral pitch and circular pitch is equal to

π
1
1/π
π × number of teeth

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Machine Design
The value of Lewis form factor used in design of gears is

Dependent on number of teeth of a gear
All of these
Dependent on system of teeth
Independent of size of teeth

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