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Machine Design

Machine Design
The wear load should be __________ the dynamic load.

Equal to
Less than
Greater than
None of these

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Machine Design
The application of third type levers is found in

Hand wheel of a punching press
Lever of a loaded safety valve
A pair of tongs
Handle of a hand pump

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

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Machine Design
When a nut is tightened by placing a washer below it, the bolt will be subjected to following type of loads

Tension
Combined loads
Shear
Compression

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Machine Design
Soderberg relation is based on __________ of the material whereas all other failure relation for dynamic loading are based on ultimate strength of the material.

Yield strength
Shear strength
Elastic strength
None of these

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Machine Design
The pipe joint mostly used for pipes carrying water at low pressures is

Socket joint
Union joint
Spigot and socket joint
Nipple joint

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