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
The periodic time of one oscillation for a simple pendulum is

(1/2π). √(l/g)

2π. √(l/g)

(1/2π). √(g/l)

2π. √(g/l)

(1/2π). √(l/g)

2π. √(l/g)

(1/2π). √(g/l)

2π. √(g/l)

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Theory of Machine
In a hydrodynamic journal bearing, there is

No lubricant between the journal and the bearing

A forced lubricant between the journal and the bearing

A very thin film of lubricant between the journal and the bearing such that there is contact between the journal and the bearing

A thick film of lubricant between the journal and the bearing

No lubricant between the journal and the bearing

A forced lubricant between the journal and the bearing

A very thin film of lubricant between the journal and the bearing such that there is contact between the journal and the bearing

A thick film of lubricant between the journal and the bearing

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Theory of Machine
In under damped vibrating system, the amplitude of vibration

Decreases exponentially with time

Decreases linearly with time

Increases exponentially with time

Increases linearly with time

Decreases exponentially with time

Decreases linearly with time

Increases exponentially with time

Increases linearly with time

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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

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

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

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Theory of Machine
In order to facilitate starting of locomotive in any position, the cranks of a locomotive with two cylinders, are placed at

120° to each other

180° to each other

45° to each other

90° to each other

120° to each other

180° to each other

45° to each other

90° to each other

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Theory of Machine

Theory of Machine The periodic time of one oscillation for a simple pendulum is

Theory of Machine In a hydrodynamic journal bearing, there is

Theory of Machine In under damped vibrating system, the amplitude of vibration

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 order to facilitate starting of locomotive in any position, the cranks of a locomotive with two cylinders, are placed at

Theory of Machine
The periodic time of one oscillation for a simple pendulum is

Theory of Machine
In a hydrodynamic journal bearing, there is

Theory of Machine
In under damped vibrating system, the amplitude of vibration

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 order to facilitate starting of locomotive in any position, the cranks of a locomotive with two cylinders, are placed at