A shaft is subjected to a maximum bending stress of 80 N/mm² and maximum shearing stress equal to 30 N/mm² at a particular section. If the yield point in tension of the material is 280 N/mm² and the maximum shear stress theory of failure is used, then the factor of safety obtained will be

Machine Design
A shaft is subjected to a maximum bending stress of 80 N/mm² and maximum shearing stress equal to 30 N/mm² at a particular section. If the yield point in tension of the material is 280 N/mm² and the maximum shear stress theory of failure is used, then the factor of safety obtained will be

2.5

3

3.5

2.8

2.5

3

3.5

2.8

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Machine Design
When a bolt and nut is made of mild steel, then the effective height of nut is made equal to (where d = Nominal diameter of bolt)

1.25 d

d

0.5 d

0.75 d

1.25 d

d

0.5 d

0.75 d

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Machine Design
The permissible stress in the fillet weld is 100 N/mm². The fillet weld has equal leg lengths of 15 mm each. The allowable shearing load on the weldment per cm length of the weld is

22.5 kN

10.6 kN

7.5 kN

15 kN

22.5 kN

10.6 kN

7.5 kN

15 kN

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Machine Design
The longitudinal joint in boilers is used to get the required

Diameter of boiler

Efficiency of boiler

Length of boiler

Length and diameter of boiler

Diameter of boiler

Efficiency of boiler

Length of boiler

Length and diameter of boiler

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Machine Design
Residual stress in materials

Is always harmful

Is independent of external loads

Becomes zero when external load is removed

Acts when external load is applied

Is always harmful

Is independent of external loads

Becomes zero when external load is removed

Acts when external load is applied

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Machine Design
A bolt

Has a head on one end and a nut fitted to the other

Has head at one end and other end fits into a tapped hole in the other part to be joined

Has both the ends threaded

Is provided with pointed threads

Has a head on one end and a nut fitted to the other

Has head at one end and other end fits into a tapped hole in the other part to be joined

Has both the ends threaded

Is provided with pointed threads

ANSWER DOWNLOAD EXAMIANS APP

Machine Design

Machine Design When a bolt and nut is made of mild steel, then the effective height of nut is made equal to (where d = Nominal diameter of bolt)

Machine Design The permissible stress in the fillet weld is 100 N/mm². The fillet weld has equal leg lengths of 15 mm each. The allowable shearing load on the weldment per cm length of the weld is

Machine Design The longitudinal joint in boilers is used to get the required

Machine Design Residual stress in materials

Machine Design A bolt

Machine Design
When a bolt and nut is made of mild steel, then the effective height of nut is made equal to (where d = Nominal diameter of bolt)

Machine Design
The permissible stress in the fillet weld is 100 N/mm². The fillet weld has equal leg lengths of 15 mm each. The allowable shearing load on the weldment per cm length of the weld is

Machine Design
The longitudinal joint in boilers is used to get the required

Machine Design
Residual stress in materials

Machine Design
A bolt