A shaft has an attached disc at the centre of its length. The disc has its centre of gravity located at a distance of 2 mm from the axis of the shaft. When the shaft is allowed to vibrate in its natural bow-shaped mode, it has a frequency of vibration of 10 rad/s. When the shaft is rotated at 300 r.p.m., it will whirl with a radius of

Theory of Machine
A shaft has an attached disc at the centre of its length. The disc has its centre of gravity located at a distance of 2 mm from the axis of the shaft. When the shaft is allowed to vibrate in its natural bow-shaped mode, it has a frequency of vibration of 10 rad/s. When the shaft is rotated at 300 r.p.m., it will whirl with a radius of

3.0 mm

2 mm

2.50 mm

2.22 mm

3.0 mm

2 mm

2.50 mm

2.22 mm

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Theory of Machine
Lower pairs are those which have

Elements of pairs not held together mechanically

Surface contact between the two elements when in motion

Point or line contact between the two elements when in motion

Two elements that permit relative motion

Elements of pairs not held together mechanically

Surface contact between the two elements when in motion

Point or line contact between the two elements when in motion

Two elements that permit relative motion

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Theory of Machine
An involute pinion and gear are in mesh. If both have the same size of addendum, then there will be an interference between the

Tip of the gear tooth and flank of pinion

Flanks of both gear and pinion

Tip of both gear and pinion

Tip of the pinion and flank of gear

Tip of the gear tooth and flank of pinion

Flanks of both gear and pinion

Tip of both gear and pinion

Tip of the pinion and flank of gear

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Theory of Machine
Which of the following has sliding motion?

Cross-head

Crank

Connecting rod

Crank pin

Cross-head

Crank

Connecting rod

Crank pin

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Theory of Machine
The equation of motion for a single degree of freedom system with viscous damping is 4(dx²/dt²) + 9(dx/dt) + 16x. The damping ratio of the system is

30195

44090

9/128

44082

30195

44090

9/128

44082

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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)

(1/2) μ W R cosecα

(3/4) μ W R cosecα

(2/3) μ W R cosecα

μ W R cosecα

(1/2) μ W R cosecα

(3/4) μ W R cosecα

(2/3) μ W R cosecα

μ W R cosecα

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Theory of Machine

Theory of Machine Lower pairs are those which have

Theory of Machine An involute pinion and gear are in mesh. If both have the same size of addendum, then there will be an interference between the

Theory of Machine Which of the following has sliding motion?

Theory of Machine The equation of motion for a single degree of freedom system with viscous damping is 4(dx²/dt²) + 9(dx/dt) + 16x. The damping ratio of the system is

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
Lower pairs are those which have

Theory of Machine
An involute pinion and gear are in mesh. If both have the same size of addendum, then there will be an interference between the

Theory of Machine
Which of the following has sliding motion?

Theory of Machine
The equation of motion for a single degree of freedom system with viscous damping is 4(dx²/dt²) + 9(dx/dt) + 16x. The damping ratio of the system is

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)