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Machine Design

Machine Design
If a material fails below its yield point, failure would be due to

Creep
Sudden loading
Fatigue
Straining

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Machine Design
Which of the following cotter joint will be used to connect strap end of a connecting rod?

Spigot and socket cotter joint
Gib and cotter joint
Sleeve and cotter joint
Any one of these

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Machine Design
The modulus of elasticity for mild steel is approximately equal to

110 kN/mm²
100 kN/mm²
210 kN/mm²
80 kN/mm²

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Machine Design
A steel containing 0.8% carbon is known as

Hypo-eutectoid steel
Eutectoid steel
None of these
Hypereutectoid steel

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Machine Design
The velocity factor for ordinary cut gears operating at velocities up to 12.5 m/s is equal to

4.5/(4.5 + v)
0.75/(0.75 + √v)
3/(3 + v)
6/(6 + v)

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Machine Design
A shaft is subjected to

Bending stresses
Combined bending and shear stresses
All of these
Shear stresses

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