In Meyer's expansion valve, the expansion valve is driven by an eccentric having an angle of advance from

Theory of Machine
In Meyer's expansion valve, the expansion valve is driven by an eccentric having an angle of advance from

50°- 60°

60°-70°

80°- 90°

70°- 80°

50°- 60°

60°-70°

80°- 90°

70°- 80°

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Theory of Machine
When the addenda on pinion and wheel is such that the path of approach and path of recess are half of their maximum possible values, then the length of the path of contact is given by (where r = Pitch circle radius of pinion, R = Pitch circle radius of wheel, and φ = Pressure angle)

[(r + R) cosφ]/2

[(r² + R²) cosφ]/2

[(r² + R²) sinφ]/2

[(r + R) sinφ]/2

[(r + R) cosφ]/2

[(r² + R²) cosφ]/2

[(r² + R²) sinφ]/2

[(r + R) sinφ]/2

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Theory of Machine
The height of a Watt's governor is

Inversely proportional to (speed)²

Inversely proportional to speed

Directly proportional to speed

Directly proportional to (speed)²

Inversely proportional to (speed)²

Inversely proportional to speed

Directly proportional to speed

Directly proportional to (speed)²

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Theory of Machine
Which of the following property of the instantaneous center is correct?

All of these

The two rigid links have no linear velocity relative to each other at the instantaneous centre.

A rigid link rotates instantaneously relative to another link at the instantaneous centre for the configuration of the mechanism considered.

The velocity of the instantaneous centre relative to any third rigid link is same whether the instantaneous centre is regarded as a point on the first rigid link or on the second rigid link.

All of these

The two rigid links have no linear velocity relative to each other at the instantaneous centre.

A rigid link rotates instantaneously relative to another link at the instantaneous centre for the configuration of the mechanism considered.

The velocity of the instantaneous centre relative to any third rigid link is same whether the instantaneous centre is regarded as a point on the first rigid link or on the second rigid link.

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Theory of Machine
Crowning on pulleys helps

Increase belt and pulley life

For automatic adjustment of belt position so that belt runs centrally

In decreasing the slip of the belt

In increasing velocity ratio

Increase belt and pulley life

For automatic adjustment of belt position so that belt runs centrally

In decreasing the slip of the belt

In increasing velocity ratio

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Theory of Machine
The advantage of the piston valve over the slide valve is that in the former case

The pressure developed being high provides tight sealing

Power absorbed is less

Wear is less

Both wear and power absorbed are low

The pressure developed being high provides tight sealing

Power absorbed is less

Wear is less

Both wear and power absorbed are low

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Theory of Machine

Theory of Machine In Meyer's expansion valve, the expansion valve is driven by an eccentric having an angle of advance from

Theory of Machine The height of a Watt's governor is

Theory of Machine Which of the following property of the instantaneous center is correct?

Theory of Machine Crowning on pulleys helps

Theory of Machine The advantage of the piston valve over the slide valve is that in the former case

Theory of Machine
In Meyer's expansion valve, the expansion valve is driven by an eccentric having an angle of advance from

Theory of Machine
The height of a Watt's governor is

Theory of Machine
Which of the following property of the instantaneous center is correct?

Theory of Machine
Crowning on pulleys helps

Theory of Machine
The advantage of the piston valve over the slide valve is that in the former case