A disc is a spinning with an angular velocity ω rad/s about the axis of spin. The couple applied to the disc causing precession will be (where I = Mass moment of inertia of the disc, and ωP = Angular velocity of precession of the axis of spin)

Theory of Machine
A disc is a spinning with an angular velocity ω rad/s about the axis of spin. The couple applied to the disc causing precession will be (where I = Mass moment of inertia of the disc, and ωP = Angular velocity of precession of the axis of spin)

Iω²

(1/2).Iω²

I ω ωP

(1/2). I ω ωP

Iω²

(1/2).Iω²

I ω ωP

(1/2). I ω ωP

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Theory of Machine
Rectilinear motion of piston is converted into rotary by

Slider crank

Connecting rod

Cross head

Gudgeon pin

Slider crank

Connecting rod

Cross head

Gudgeon pin

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Theory of Machine
The total number of instantaneous centers for a mechanism consisting of n links are

n(n - 1)/2

n - 1

n/2

n

n(n - 1)/2

n - 1

n/2

n

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Theory of Machine
A ball and a socket forms a

Rolling pair

Screw pair

Turning pair

Spherical pair

Rolling pair

Screw pair

Turning pair

Spherical pair

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Theory of Machine
A rotor which is balanced statically but not dynamically is supported on two bearings L apart and at high speed of the rotor, reaction on the left bearing is R. The right side of the bearing is shifted to a new position 2L apart from the left bearing. At the same rotor speed, dynamic reaction on the left bearing in the new arrangement will

Become equal to R/2

Become equal to 2R

Become equal to R/4

Remain same as before

Become equal to R/2

Become equal to 2R

Become equal to R/4

Remain same as before

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Theory of Machine
In a Hartnell governor, the stiffness of the spring is given by (where S1 and S2 = Spring forces exerted on the sleeve at max. and min. radii of rotation, and h = Compression of the spring)

(S₁ - S₂) / 2h

(S₁ - S₂) / h

(S₁ + S₂) / h

(S₁ + S₂) / 2h

(S₁ - S₂) / 2h

(S₁ - S₂) / h

(S₁ + S₂) / h

(S₁ + S₂) / 2h

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Theory of Machine

Theory of Machine A disc is a spinning with an angular velocity ω rad/s about the axis of spin. The couple applied to the disc causing precession will be (where I = Mass moment of inertia of the disc, and ωP = Angular velocity of precession of the axis of spin)

Theory of Machine Rectilinear motion of piston is converted into rotary by

Theory of Machine The total number of instantaneous centers for a mechanism consisting of n links are

Theory of Machine A ball and a socket forms a

Theory of Machine In a Hartnell governor, the stiffness of the spring is given by (where S1 and S2 = Spring forces exerted on the sleeve at max. and min. radii of rotation, and h = Compression of the spring)

Theory of Machine
A disc is a spinning with an angular velocity ω rad/s about the axis of spin. The couple applied to the disc causing precession will be (where I = Mass moment of inertia of the disc, and ωP = Angular velocity of precession of the axis of spin)

Theory of Machine
Rectilinear motion of piston is converted into rotary by

Theory of Machine
The total number of instantaneous centers for a mechanism consisting of n links are

Theory of Machine
A ball and a socket forms a

Theory of Machine
In a Hartnell governor, the stiffness of the spring is given by (where S1 and S2 = Spring forces exerted on the sleeve at max. and min. radii of rotation, and h = Compression of the spring)