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

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

2050 N-m

2136 N-m

2100 N-m

2000 N-m

2050 N-m

2136 N-m

2100 N-m

2000 N-m

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Machine Design
A shaft coupling should

Be easy to connect or disconnect

Transmit full power of the shaft

Hold the shafts in perfect alignment

All of these

Be easy to connect or disconnect

Transmit full power of the shaft

Hold the shafts in perfect alignment

All of these

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Machine Design
In a butt welded joint, the size of weld is __________ the throat of weld.

0.5 times

Equal to

2 times

Double

0.5 times

Equal to

2 times

Double

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Machine Design
The plasticity is the property of a material which enables it to

Regain its original shape after deformation when the external forces are removed

Resist fracture due to high impact loads

Draw into wires by the application of a tensile force

Retain deformation produced under load permanently

Regain its original shape after deformation when the external forces are removed

Resist fracture due to high impact loads

Draw into wires by the application of a tensile force

Retain deformation produced under load permanently

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Machine Design
The rolling contact bearings as compared to sliding contact bearings have

Small overall dimensions

Accuracy of shaft alignment

All of these

Low starting and low running friction except at very high speeds

Small overall dimensions

Accuracy of shaft alignment

All of these

Low starting and low running friction except at very high speeds

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Machine Design
When a material is subjected to fatigue loading, the ratio of the endurance limit to the ultimate tensile strength is

0.35

0.5

0.65

0.2

0.35

0.5

0.65

0.2

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Machine Design

Machine Design A shaft coupling should

Machine Design In a butt welded joint, the size of weld is __________ the throat of weld.

Machine Design The plasticity is the property of a material which enables it to

Machine Design The rolling contact bearings as compared to sliding contact bearings have

Machine Design When a material is subjected to fatigue loading, the ratio of the endurance limit to the ultimate tensile strength is

Machine Design
A shaft coupling should

Machine Design
In a butt welded joint, the size of weld is __________ the throat of weld.

Machine Design
The plasticity is the property of a material which enables it to

Machine Design
The rolling contact bearings as compared to sliding contact bearings have

Machine Design
When a material is subjected to fatigue loading, the ratio of the endurance limit to the ultimate tensile strength is