A machine mounted on a single coil spring has a period of free vibration of tp . If the spring is cut into four equal parts and placed in parallel and the machine is mounted on them, then the period of free vibration of the new system will become

Theory of Machine
A machine mounted on a single coil spring has a period of free vibration of tp . If the spring is cut into four equal parts and placed in parallel and the machine is mounted on them, then the period of free vibration of the new system will become

tp /16

4 tp

16 tp

tp /4

tp /16

4 tp

16 tp

tp /4

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Theory of Machine
A body having moment of inertia o:m2 is rotating at 210 RPM and r with another body at rest having I 40 kg m2. The resultant speed after ing will be

data are insufficient

90 RPM

100 RPM

80 RPM

data are insufficient

90 RPM

100 RPM

80 RPM

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Theory of Machine
The minimum periodic time of a compound pendulum is

(1/2π). √(2kG/g)

(1/2π). √(kG/g)

2π. √(2kG/g)

2π. √(kG/g)

(1/2π). √(2kG/g)

(1/2π). √(kG/g)

2π. √(2kG/g)

2π. √(kG/g)

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Theory of Machine
The two links OA and OB are connected by a pin joint at O. If the link OA turns with angular velocity ω₁ rad/s in the clockwise direction and the link OB turns with angular velocity ω₂ rad/s in the anticlockwise direction, then the rubbing velocity at the pin joint O is (where r = Radius of the pin at O)

ω₁.ω₂.r

(ω₁ - ω₂) 2r

(ω₁ - ω₂) r

(ω₁ + ω₂) r

ω₁.ω₂.r

(ω₁ - ω₂) 2r

(ω₁ - ω₂) r

(ω₁ + ω₂) r

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Theory of Machine
The acceleration of a flat-faced follower when it has contact with the flank of a circular arc cam, is given by

ω² r₁ sinθ

ω² R cosθ

ω² (R - r₁) cosθ

ω² (R - r₁) sinθ

ω² r₁ sinθ

ω² R cosθ

ω² (R - r₁) cosθ

ω² (R - r₁) sinθ

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Theory of Machine
Which of the following is a lower pair?

Both (A) and (B) above

Piston and cylinder

Cam and follower

Ball and socket i

Both (A) and (B) above

Piston and cylinder

Cam and follower

Ball and socket i

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Theory of Machine

Theory of Machine A machine mounted on a single coil spring has a period of free vibration of tp . If the spring is cut into four equal parts and placed in parallel and the machine is mounted on them, then the period of free vibration of the new system will become

Theory of Machine A body having moment of inertia o:m2 is rotating at 210 RPM and r with another body at rest having I 40 kg m2. The resultant speed after ing will be

Theory of Machine The minimum periodic time of a compound pendulum is

Theory of Machine The acceleration of a flat-faced follower when it has contact with the flank of a circular arc cam, is given by

Theory of Machine Which of the following is a lower pair?

Theory of Machine
A machine mounted on a single coil spring has a period of free vibration of tp . If the spring is cut into four equal parts and placed in parallel and the machine is mounted on them, then the period of free vibration of the new system will become

Theory of Machine
A body having moment of inertia o:m2 is rotating at 210 RPM and r with another body at rest having I 40 kg m2. The resultant speed after ing will be

Theory of Machine
The minimum periodic time of a compound pendulum is

Theory of Machine
The acceleration of a flat-faced follower when it has contact with the flank of a circular arc cam, is given by

Theory of Machine
Which of the following is a lower pair?