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Machine Design

Machine Design
The material commonly used for machine tool bodies is

Mild steel
Cast iron
Aluminium
Brass

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Machine Design
The shock absorbing capacity of a bolt may be increased by

Decreasing its shank diameter
Tightening the bolt properly
Increasing its shank diameter
Making the shank diameter equal to core diameter of thread

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Machine Design
The taper on key is given on

Top side only
Any side
On both sides
Bottom side only

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Machine Design
According to maximum normal stress theory, the maximum normal stress in the shaft is

(1/2) × √(σ² × 4τ²)
σ + √(σ² × 4τ²)
√(σ² × 4τ²)
(1/2) × [σ + √(σ² × 4τ²)]

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Machine Design
The application of third type levers is found in

Lever of a loaded safety valve
Handle of a hand pump
A pair of tongs
Hand wheel of a punching press

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Machine Design
The resistance to fatigue of a material is measured by

Young's modulus
Endurance limit
Elastic limit
Ultimate tensile strength

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MORE MCQ ON Machine Design

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