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Machine Design

Machine Design
Fibrous fracture occurs in

Hard material
Brittle material
Ductile material
Elastic material

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Machine Design
According to Indian standard specifications, plain carbon steel designated by 40C8 contains carbon

None of these
0.35 to 0.45%
0.40 to 0.60%
0.20 to 0.40%

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Machine Design
The constant factor in case of R10 series of preferred numbers is

1.58
1.12
1.06
1.26

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Machine Design
The design of the pressure vessel is based on

Hoop stress
Longitudinal and hoop stress
None of these
Longitudinal stress

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Machine Design
The piston pin bearings in heavy duty diesel engines are

Tapered roller bearings
Needle roller bearings
Cylindrical roller bearings
Spherical roller bearings

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Machine Design
In designing a sleeve coupling, length of the sleeve is taken as (where d = Diameter of the shaft)

2d + 13 mm
2d + 20 mm
d + 17 mm
3.5 d

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