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Machine Design

Machine Design
According to Indian standards, total numbers of tolerance grades are

8
20
12
18

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Machine Design
In thrust bearings, the load acts

Along the axis of rotation
In any direction
Perpendicular to the axis of rotation
Parallel to the axis of rotation

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Machine Design
According to Indian standards, the diameter of rivet hole is made larger than the basic size of rivet by

1 mm for rivet diameter from 27 mm to 36 mm
0.5 mm up to rivet diameter of 24 mm
All of these
2 mm for rivet diameter from 39 mm to 48 mm

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Machine Design
If the centre distance of the mating gears having involute teeth is increased, then the pressure angle

Increases
Decreases
Remains unchanged
None of these

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Machine Design
A bolt is designed on the basis of __________ with a large factor of safety.

Direct tensile stress
Direct shear stress
Direct bending stress
Direct compressive stress

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Machine Design
The value of stress concentration factor depends upon

Geometry of the part
None of these
Material and geometry of the part
Material of the part

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