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Machine Design

Machine Design
The shock resistance of steel is increased by adding

Nickel
Chromium
Nickel and chromium
Cobalt and molybdenum

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Machine Design
The dedendum circle diameter is equal to (where φ = Pressure angle)

Pitch circle diameter × cosφ
Addendum circle diameter × cosφ
Clearance circle diameter × cosφ
Pitch circle diameter × sinφ

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Machine Design
A circular shaft can transmit a torque of 5 kN-m. If the torque is reduced to 4 kN-m, then the maximum value of bending moment that can be applied to the shaft is

1 kN-m
3 kN-m
2 kN-m
4 kN-m

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Machine Design
In designing thick cylinders, the equation used is

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

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Machine Design
The endurance limit for a mirror polished material will be __________ as compared to unpolished material.

Same
More
None of these
Less

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Machine Design
In unilateral system of tolerance, the tolerance is allowed on

One side of the actual size
Both sides of the actual size
Both sides of the nominal size
One side of the nominal size

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