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Machine Design

Machine Design
The rivet head used for boiler plate riveting is usually

Pan Head
Conical head
Counter sunk head
Snap head

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Machine Design
An elastic bar is fixed at the upper end and loaded at the lower end by a falling weight. The shock load produced can be reduced by

Decreasing the modulus of elasticity of the bar
Increasing the length of bar
Decreasing the cross-sectional area of the bar
All of these

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Machine Design
In most machine members, the damping capacity of the material should be

High
Could be anything
Zero
Low

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Machine Design
A machine part subjected to _________ is called a strut.

An axial compressive force
A tangential force
An axial tensile force
Any one of these

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Machine Design
If the centre distance of the mating gears having involute teeth is varied within limits, the velocity ratio

Increases
Remains unchanged
Decreases
None of these

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Machine Design
The number of slots in a 25 mm castle nut is

4
8
6
2

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