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Machine Design

Machine Design
The pitch of threads on a Jock nut in comparison to pitch of nut is

Finer
Same
Coarser
Very fine

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Machine Design
The velocity of sliding __________ the distance of the point of contact from the pitch point.

Does not depend upon
Is equal to cos φ multiplied by
Is directly proportional to
Is inversely proportional to

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Machine Design
When the belt is transmitting maximum power, the belt speed should be(Where, m = mass of belt per meter (kg/m) and Pmax = maximum permissible tension in belt (N))

√(Pmax / m)
√(Pmax / 2m)
√(3m /Pmax)
√(Pmax / 3m)

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Machine Design
In designing thick cylinders, the equation used is

All of these
Clavarinos' equation
Lame's equation
Birnie's equation

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Machine Design
The power transmitted by means of a belt depends upon

Velocity of the belt
All of these
Arc of contact between the belt and the smaller pulley
Tension under which the belt is placed on the pulleys

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Machine Design
The maximum bending stress in a curved beam having symmetrical section always occur at the

Centroidal axis
Outside fiber
Neutral axis
Inside fiber

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