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Machine Design

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

High
Low
Zero
Could be anything

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Machine Design
Taper on the cotter and slot is provided

On both the sides
On none of the sides
On one side only
May be provided anywhere

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

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Machine Design
When bevel gears having equal teeth and equal pitch angles connect two shafts whose axes intersect at right angle, then they are known as

Internal bevel gears
Miter gears
Crown bevel gears
Angular bevel gears

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Machine Design
The connecting rod bolts are tightened up with initial tension greater than the external load so that

Bolts are weakest elements
Bolts will not loosen during service
The resultant load on the bolt would not be affected by the external cyclic load
Joint may not open up

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Machine Design
For a square key made of mild steel, the shear and crushing strength are related as

Shear strength is equal to crushing strength
Shear strength is less than crushing strength
None of these
Shear strength is greater than crushing strength

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