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Machine Design

Machine Design
In standard taper roller bearings, the angle of taper of outer raceway is

8°
25°
5°
15°

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Machine Design
The sleeve or muff coupling is designed as a

Hollow shaft
Solid shaft
Thick cylinder
Dun cylinder

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Machine Design
According to Indian standard specifications, 100 H6/g5 means that the

Actual size is 100 mm
Basic size is 100 mm
None of these
Difference between the actual size and basic size is 100 mm

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

1.06
1.26
1.12
1.58

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Machine Design
The gears are termed as medium velocity gears, if their peripheral velocity is

15-30 m/s
30-50 m/s
1-3 m/s
3-15 m/s

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Machine Design
When an open coiled helical compression spring is subjected to an axial compressive load, the maximum shear stress induced in the wire is (where D = Mean diameter of the spring coil, d = Diameter of the spring wire, K = Wahl's stress factor, and W = Axial compressive load on the spring)

(WD/ πd3) × K
(8WD/ πd3) × K
(4WD/ πd3) × K
(2WD/ πd3) × K

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