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

2136 N-m

2000 N-m

2100 N-m

2050 N-m

2136 N-m

2000 N-m

2100 N-m

2050 N-m

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Machine Design
According to Indian standard specifications, plain carbon steel designated by 40C8 contains carbon

0.40 to 0.60%

0.20 to 0.40%

0.35 to 0.45%

None of these

0.40 to 0.60%

0.20 to 0.40%

0.35 to 0.45%

None of these

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Machine Design
In a flange coupling, the keys are staggered at __________ along the circumference of the shafts in order to divide the weakening effect caused by key ways.

180°

160°

90°

135°

180°

160°

90°

135°

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Machine Design
The design of pin of a rocker arm of an I.C. engine is based on

Bearing failure

All of these

Bending failure

Shearing failure

Bearing failure

All of these

Bending failure

Shearing failure

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Machine Design
The endurance limit for a mirror polished material will be __________ as compared to unpolished material.

More

Same

None of these

Less

More

Same

None of these

Less

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Machine Design
When the material of key and shaft is same, and the width of key is one-fourth of the diameter of shaft (d), then length of key will be

1.57 d

1.8 d

1.2 d

0.8 d

1.57 d

1.8 d

1.2 d

0.8 d

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Machine Design

Machine Design According to Indian standard specifications, plain carbon steel designated by 40C8 contains carbon

Machine Design In a flange coupling, the keys are staggered at __________ along the circumference of the shafts in order to divide the weakening effect caused by key ways.

Machine Design The design of pin of a rocker arm of an I.C. engine is based on

Machine Design The endurance limit for a mirror polished material will be __________ as compared to unpolished material.

Machine Design When the material of key and shaft is same, and the width of key is one-fourth of the diameter of shaft (d), then length of key will be

Machine Design
According to Indian standard specifications, plain carbon steel designated by 40C8 contains carbon

Machine Design
In a flange coupling, the keys are staggered at __________ along the circumference of the shafts in order to divide the weakening effect caused by key ways.

Machine Design
The design of pin of a rocker arm of an I.C. engine is based on

Machine Design
The endurance limit for a mirror polished material will be __________ as compared to unpolished material.

Machine Design
When the material of key and shaft is same, and the width of key is one-fourth of the diameter of shaft (d), then length of key will be