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Machine Design

Machine Design
The suitable material for belt used in flour mill is

Canvas or cotton duck
Rubber
Balata gum
Leather

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Machine Design
The notch angle of the Izod impact test specimen is

30°
10°
20°
45°

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Machine Design
The ultimate strength of steel in tension in comparison to shear is in the ratio of

0.084027777777778
0.12638888888889
0.042361111111111
0.085416666666667

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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
When the length of the journal is equal to the diameter of the journal, then the bearing is said to be a

Square bearing
Long bearing
Medium bearing
Short bearing

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Machine Design
The rolling contact bearings are known as

Plastic bearings
Thick lubricated bearings
Thin lubricated bearings
Antifriction bearings

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MORE MCQ ON Machine Design

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