The lead screw of a lathe with nut forms a

Theory of Machine
The lead screw of a lathe with nut forms a

Screw pair

Turning pair

Sliding pair

Rolling pair

Screw pair

Turning pair

Sliding pair

Rolling pair

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Theory of Machine
The flank of the tooth is the surface of the tooth __________ the pitch surface.

None of these

Above

At

Below

None of these

Above

At

Below

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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) sinφ]/2

[(r + R) sinφ]/2

[(r² + R²) cosφ]/2

[(r + R) cosφ]/2

[(r² + R²) sinφ]/2

[(r + R) sinφ]/2

[(r² + R²) cosφ]/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
If ω/ωn = 2, where co is the frequency of excitation and ωn is the natural frequency of vibrations, then the transmissibility of vibration will the

1.5

1

0.5

2

1.5

1

0.5

2

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Theory of Machine
Throw of a cam is the maximum distance of the follower from

Pitch circle

Base circle

Root circle

Prime circle

Pitch circle

Base circle

Root circle

Prime circle

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Theory of Machine

Theory of Machine The lead screw of a lathe with nut forms a

Theory of Machine The flank of the tooth is the surface of the tooth __________ the pitch surface.

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

Theory of Machine If ω/ωn = 2, where co is the frequency of excitation and ωn is the natural frequency of vibrations, then the transmissibility of vibration will the

Theory of Machine Throw of a cam is the maximum distance of the follower from

Theory of Machine
The lead screw of a lathe with nut forms a

Theory of Machine
The flank of the tooth is the surface of the tooth __________ the pitch surface.

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

Theory of Machine
If ω/ωn = 2, where co is the frequency of excitation and ωn is the natural frequency of vibrations, then the transmissibility of vibration will the

Theory of Machine
Throw of a cam is the maximum distance of the follower from