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 clockwise direction, then the rubbing velocity at the pin joint O is (where r = Radius of the pin at O)

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 clockwise direction, then the rubbing velocity at the pin joint O is (where r = Radius of the pin at O)

(ω₁ - ω₂)r

(ω₁ + ω₂)r

ω₁.ω₂.r

(ω₁ - ω₂)2r

(ω₁ - ω₂)r

(ω₁ + ω₂)r

ω₁.ω₂.r

(ω₁ - ω₂)2r

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Theory of Machine
A thin circular disc is rolling with a uniform linear speed, along a straight path on a plane surface. Which of the following statement is correct in this regard?

The centre of the disc has centrifugal acceleration

The centre of the disc has zero acceleration

All points of the disc have the same velocity

The point on the disc making contact with the plane surface has zero acceleration

The centre of the disc has centrifugal acceleration

The centre of the disc has zero acceleration

All points of the disc have the same velocity

The point on the disc making contact with the plane surface has zero acceleration

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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
The sense of Coriolis component 2 ωv is same as that of the relative velocity vector v rotated at

90° in the direction of rotation of the link containing the path

45° in the direction of rotation of the link containing the path

180° in the direction opposite to the rotation of the link containing the path

45° in the direction opposite to the rotation of the link containing the path

90° in the direction of rotation of the link containing the path

45° in the direction of rotation of the link containing the path

180° in the direction opposite to the rotation of the link containing the path

45° in the direction opposite to the rotation of the link containing the path

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Theory of Machine
In a disc clutch, if there are n₁ number of discs on the driving shaft and n₂ number of discs on the driven shaft, then the number of pairs of contact surfaces will be

n₁ + n₂ - 2

n₁ + n₂

n₁ + n₂ - 1

n₁ + n₂ + 1

n₁ + n₂ - 2

n₁ + n₂

n₁ + n₂ - 1

n₁ + n₂ + 1

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Theory of Machine
Which of the following disciplines provides study of inertia forces arising from the combined effect of the mass and the motion of the parts?

Theory of machines

Kinetics

Mechanisms

Applied mechanics

Theory of machines

Kinetics

Mechanisms

Applied mechanics

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Theory of Machine

Theory of Machine A thin circular disc is rolling with a uniform linear speed, along a straight path on a plane surface. Which of the following statement is correct in this regard?

Theory of Machine The sense of Coriolis component 2 ωv is same as that of the relative velocity vector v rotated at

Theory of Machine In a disc clutch, if there are n₁ number of discs on the driving shaft and n₂ number of discs on the driven shaft, then the number of pairs of contact surfaces will be

Theory of Machine Which of the following disciplines provides study of inertia forces arising from the combined effect of the mass and the motion of the parts?

Theory of Machine
A thin circular disc is rolling with a uniform linear speed, along a straight path on a plane surface. Which of the following statement is correct in this regard?

Theory of Machine
The sense of Coriolis component 2 ωv is same as that of the relative velocity vector v rotated at

Theory of Machine
In a disc clutch, if there are n₁ number of discs on the driving shaft and n₂ number of discs on the driven shaft, then the number of pairs of contact surfaces will be

Theory of Machine
Which of the following disciplines provides study of inertia forces arising from the combined effect of the mass and the motion of the parts?