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Machine Design

Machine Design
For maximum power, the velocity of the belt will be

√(T/2m)
√(T/3m)
None of these
√(T/m)

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Machine Design
A spring is used to

Measure forces
Apply forces
Store energy
All of these

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Machine Design
The material commonly used for crane hooks is

Mild steel
Wrought iron
Cast iron
Aluminium

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Machine Design
The anti-friction bearings

Have low starting and low running friction at moderate speeds
Have high initial cost
All of these
Can carry both radial and thrust loads

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Machine Design
The included angle for the British Association thread is

60°
47.3°
55°
29°

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Machine Design
The application of third type levers is found in

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

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