In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The distance between fixed pivots of crank and followers is

Theory of Machine
In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The distance between fixed pivots of crank and followers is

45 mm

Slightly more than 95 mm

Slightly less than 95 mm

95 mm

45 mm

Slightly more than 95 mm

Slightly less than 95 mm

95 mm

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Theory of Machine
It is required to connect two parallel shafts, the distance between whose axes is small and variable. The shafts are coupled by

Flexible coupling

Oldham's coupling

Knuckle joint

Universal joint

Flexible coupling

Oldham's coupling

Knuckle joint

Universal joint

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Theory of Machine
When the radius of rotation of balls __________ as the equilibrium speed increases, the governor is said to be unstable.

Decreases

None of these

Increases

Remains constant

Decreases

None of these

Increases

Remains constant

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Theory of Machine
In a mechanism, the fixed instantaneous centers are those centers which

Vary with the configuration of the mechanism

None of the listed here

Moves as the mechanism moves, but joints are of permanent nature

Remain in the same place for all configurations of the mechanism

Vary with the configuration of the mechanism

None of the listed here

Moves as the mechanism moves, but joints are of permanent nature

Remain in the same place for all configurations of the mechanism

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Theory of Machine
For dynamic balancing of a shaft

None of these

The net dynamic force acting on the shaft is equal to zero

Both (A) and (B)

The net couple due to the dynamic forces acting on the shaft is equal to zero

None of these

The net dynamic force acting on the shaft is equal to zero

Both (A) and (B)

The net couple due to the dynamic forces acting on the shaft is equal to zero

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Theory of Machine
The displacement of a flat faced follower when it has contact with the flank of a circular arc cam, is given by (where R = Radius of flank, r₁ = Minimum radius of the cam, and θ = Angle turned through by the cam)

R (1 - cosθ)

(R - r₁) (1 - sinθ)

(R - r₁) (1 - cosθ)

R (1 - sinθ)

R (1 - cosθ)

(R - r₁) (1 - sinθ)

(R - r₁) (1 - cosθ)

R (1 - sinθ)

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Theory of Machine

Theory of Machine It is required to connect two parallel shafts, the distance between whose axes is small and variable. The shafts are coupled by

Theory of Machine When the radius of rotation of balls __________ as the equilibrium speed increases, the governor is said to be unstable.

Theory of Machine In a mechanism, the fixed instantaneous centers are those centers which

Theory of Machine For dynamic balancing of a shaft

Theory of Machine The displacement of a flat faced follower when it has contact with the flank of a circular arc cam, is given by (where R = Radius of flank, r₁ = Minimum radius of the cam, and θ = Angle turned through by the cam)

Theory of Machine
It is required to connect two parallel shafts, the distance between whose axes is small and variable. The shafts are coupled by

Theory of Machine
When the radius of rotation of balls __________ as the equilibrium speed increases, the governor is said to be unstable.

Theory of Machine
In a mechanism, the fixed instantaneous centers are those centers which

Theory of Machine
For dynamic balancing of a shaft

Theory of Machine
The displacement of a flat faced follower when it has contact with the flank of a circular arc cam, is given by (where R = Radius of flank, r₁ = Minimum radius of the cam, and θ = Angle turned through by the cam)