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Machine Design

Machine Design
The pitch of threads on a Jock nut in comparison to pitch of nut is

Very fine
Same
Coarser
Finer

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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

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

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Machine Design
The property of a bearing material which has the ability to accommodate small particles of dust, grit etc. without scoring the material of the journal, is called

Fatigue strength
Bondability
Embeddability
Comformability

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Machine Design
The coefficient of friction between the belt and pulley depends upon the

Speed of belt
Slip of belt
All of these
Material of belt and pulley

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Machine Design
The function of the washer is to

Provide bearing area
Fill up the axial gap
Provide cushioning effect
Absorb shocks and vibrations

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Machine Design
In designing a connecting rod, it is considered like __________ for buckling about X-axis.

Both ends hinged
One end fixed and the other end hinged
One end fixed and the other end free
Both ends fixed

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