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Machine Design

Machine Design
According to Indian standards, total numbers of fundamental deviations are

10
25
20
15

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Machine Design
The usual clearance provided in hydrodynamic bearing per mm of diameter of shaft is

1 micron
10 microns
0.1 micron
0.01 micron

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Machine Design
The design calculations for members subject to fluctuating loads with the same factor of safety, yield the most conservative estimates when using

None of these
Goodman relation
Gerber relation
Soderberg relation

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Machine Design
In worm gears, the pressure angle is __________ the angle between two inclined faces in axial plane.

None of these
Twice
Thrice
Half

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Machine Design
The algebraic difference between the maximum limit and the basic size is called

Lower deviation
Mean deviation
Actual deviation
Upper deviation

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Machine Design
A shaft is subjected to fluctuating loads for which the normal torque (T) and bending moment (M) are 1000 N-m and 500 N-m respectively. If the combined shock and fatigue factor for bending is 1.5 and combined shock and fatigue factor for torsion is 2, then the equivalent twisting moment for the shaft is

2000 N-m
2100 N-m
2136 N-m
2050 N-m

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