The distance by which the __________ of the D-slide valve overlaps the steam port is called exhaust lap.

Theory of Machine
The distance by which the __________ of the D-slide valve overlaps the steam port is called exhaust lap.

Inner edge

Corners

None of these

Outer edge

Inner edge

Corners

None of these

Outer edge

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

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

All of these

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.

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

All of these

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
A ball and a socket forms a

Turning pair

Spherical pair

Rolling pair

Screw pair

Turning pair

Spherical pair

Rolling pair

Screw pair

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Theory of Machine
A chain comprises of 5 links having 5 joints. Is it kinematic chain?

Yes

No

It is a marginal case

Data are insufficient to determine it

Yes

No

It is a marginal case

Data are insufficient to determine it

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Theory of Machine
The frictional torque transmitted in a conical pivot bearing, considering uniform pressure, is (where R = Radius of shaft, and α = Semi-angle of the cone)

μ W R cosecα

(3/4) μ W R cosecα

(2/3) μ W R cosecα

(1/2) μ W R cosecα

μ W R cosecα

(3/4) μ W R cosecα

(2/3) μ W R cosecα

(1/2) μ W R cosecα

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Theory of Machine
The efficiency of a screw jack is maximum, when (where α = Helix angle, and φ = Angle of friction)

α = 90° - φ

α = 45° + φ/2

α = 90° + φ

α = 45° - φ/2

α = 90° - φ

α = 45° + φ/2

α = 90° + φ

α = 45° - φ/2

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Theory of Machine

Theory of Machine The distance by which the __________ of the D-slide valve overlaps the steam port is called exhaust lap.

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

Theory of Machine A ball and a socket forms a

Theory of Machine A chain comprises of 5 links having 5 joints. Is it kinematic chain?

Theory of Machine The frictional torque transmitted in a conical pivot bearing, considering uniform pressure, is (where R = Radius of shaft, and α = Semi-angle of the cone)

Theory of Machine The efficiency of a screw jack is maximum, when (where α = Helix angle, and φ = Angle of friction)

Theory of Machine
The distance by which the __________ of the D-slide valve overlaps the steam port is called exhaust lap.

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

Theory of Machine
A ball and a socket forms a

Theory of Machine
A chain comprises of 5 links having 5 joints. Is it kinematic chain?

Theory of Machine
The frictional torque transmitted in a conical pivot bearing, considering uniform pressure, is (where R = Radius of shaft, and α = Semi-angle of the cone)

Theory of Machine
The efficiency of a screw jack is maximum, when (where α = Helix angle, and φ = Angle of friction)