A closely coiled helical spring is acted upon by an axial force. The maximum shear stress developed in the spring is τ. The half of the length of the spring if cut off and the remaining spring is acted upon by the same axial force. The maximum shear stress in the spring in new condition will be

Machine Design
A closely coiled helical spring is acted upon by an axial force. The maximum shear stress developed in the spring is τ. The half of the length of the spring if cut off and the remaining spring is acted upon by the same axial force. The maximum shear stress in the spring in new condition will be

τ

τ/2

4 τ

2 τ

τ

τ/2

4 τ

2 τ

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Machine Design
The deflection of a cantilever beam under load W is 8. If its width is halved, then the deflection under load W will be

44045

43869

43929

44047

44045

43869

43929

44047

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Machine Design
The anti-friction bearings

Have high initial cost

All of these

Have low starting and low running friction at moderate speeds

Can carry both radial and thrust loads

Have high initial cost

All of these

Have low starting and low running friction at moderate speeds

Can carry both radial and thrust loads

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Machine Design
According to I.B.R., the factor of safety of riveted joint should not be less than

4

2

1

3

4

2

1

3

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Machine Design
In cross or regular lay ropes

Wires are not twisted

Direction of twist of wires in strands is opposite to the direction of twist of strands

Wires in two adjacent strands are twisted in opposite direction

Direction of twist of wires and strands are same

Wires are not twisted

Direction of twist of wires in strands is opposite to the direction of twist of strands

Wires in two adjacent strands are twisted in opposite direction

Direction of twist of wires and strands are same

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Machine Design
In unilateral system of tolerance, the tolerance is allowed on

One side of the actual size

Both sides of the nominal size

Both sides of the actual size

One side of the nominal size

One side of the actual size

Both sides of the nominal size

Both sides of the actual size

One side of the nominal size

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Machine Design

Machine Design The deflection of a cantilever beam under load W is 8. If its width is halved, then the deflection under load W will be

Machine Design The anti-friction bearings

Machine Design According to I.B.R., the factor of safety of riveted joint should not be less than

Machine Design In cross or regular lay ropes

Machine Design In unilateral system of tolerance, the tolerance is allowed on

Machine Design
The deflection of a cantilever beam under load W is 8. If its width is halved, then the deflection under load W will be

Machine Design
The anti-friction bearings

Machine Design
According to I.B.R., the factor of safety of riveted joint should not be less than

Machine Design
In cross or regular lay ropes

Machine Design
In unilateral system of tolerance, the tolerance is allowed on