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)

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) 2r

(ω₁ - ω₂) r

ω₁.ω₂.r

(ω₁ + ω₂) r

(ω₁ - ω₂) 2r

(ω₁ - ω₂) r

ω₁.ω₂.r

(ω₁ + ω₂) r

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Theory of Machine
Power of a governor is the

Mean force exerted at the sleeve for maximum equilibrium speed

Mean force exerted at the sleeve for a given percentage change of speed

None of these

Work-done at the sleeve for maximum equilibrium speed

Mean force exerted at the sleeve for maximum equilibrium speed

Mean force exerted at the sleeve for a given percentage change of speed

None of these

Work-done at the sleeve for maximum equilibrium speed

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Theory of Machine
In a screw jack, the effort required to lower the load W is given by

P = W tan(α + φ)

P = W tan(φ - α)

P = W cos(α + φ)

P = W tan(α - φ)

P = W tan(α + φ)

P = W tan(φ - α)

P = W cos(α + φ)

P = W tan(α - φ)

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Theory of Machine
The ratio of the driving tensions for V-belts is __________ times that of flat belts.(Where β = Semi-angle of the groove)

cosβ

sinβ

secβ

cosecβ

cosβ

sinβ

secβ

cosecβ

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Theory of Machine
The relation between number of pairs (p) forming a kinematic chain and the number of links (l) is

l = 2p - 5

l = 2p - 3

l = 2p - 4

l = 2p - 2

l = 2p - 5

l = 2p - 3

l = 2p - 4

l = 2p - 2

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Theory of Machine
The ratio of the maximum displacement of the forced vibration to the deflection due to the static force, is known as

Magnification factor

Damping coefficient

Damping factor

Logarithmic decrement

Magnification factor

Damping coefficient

Damping factor

Logarithmic decrement

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Theory of Machine

Theory of Machine Power of a governor is the

Theory of Machine In a screw jack, the effort required to lower the load W is given by

Theory of Machine The ratio of the driving tensions for V-belts is __________ times that of flat belts.(Where β = Semi-angle of the groove)

Theory of Machine The relation between number of pairs (p) forming a kinematic chain and the number of links (l) is

Theory of Machine The ratio of the maximum displacement of the forced vibration to the deflection due to the static force, is known as

Theory of Machine
Power of a governor is the

Theory of Machine
In a screw jack, the effort required to lower the load W is given by

Theory of Machine
The ratio of the driving tensions for V-belts is __________ times that of flat belts.(Where β = Semi-angle of the groove)

Theory of Machine
The relation between number of pairs (p) forming a kinematic chain and the number of links (l) is

Theory of Machine
The ratio of the maximum displacement of the forced vibration to the deflection due to the static force, is known as