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 minimum length of the coupler will be

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 minimum length of the coupler will be

Slightly less than 45 mm

Slightly more than 45 mm

95 mm

45 mm

Slightly less than 45 mm

Slightly more than 45 mm

95 mm

45 mm

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Theory of Machine
When the crank is at the outer dead centre, in a reciprocating steam engine, then the acceleration of the piston will be

ω² r {n/(n - 1)}

ω² r {(n + 1)/n}

ω² r {(n - 1)/n}

ω² r {n/(n + 1)}

ω² r {n/(n - 1)}

ω² r {(n + 1)/n}

ω² r {(n - 1)/n}

ω² r {n/(n + 1)}

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Theory of Machine
The frictional torque transmitted in a flat collar bearing, considering uniform pressure, is (where r₁ and r₂ = External and internal radii of collar respectively)

(2/3). μ W [(r₁³ - r₂³)/(r₁² - r₂²)]

(1/2). μ W [(r₁³ - r₂³)/(r₁² - r₂²)]

(2/3). μ W (r₁ + r₂)

(1/2). μ W (r₁ + r₂)

(2/3). μ W [(r₁³ - r₂³)/(r₁² - r₂²)]

(1/2). μ W [(r₁³ - r₂³)/(r₁² - r₂²)]

(2/3). μ W (r₁ + r₂)

(1/2). μ W (r₁ + r₂)

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Theory of Machine
The relative velocity of B with respect to A in a rigid link AB is

At 45° to AB

Parallel to AB

Along AB

Perpendicular to AB

At 45° to AB

Parallel to AB

Along AB

Perpendicular to AB

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Theory of Machine
The periodic time of a compound pendulum is __________ when the distance between the point of suspension and the center of gravity is equal to the radius of gyration of the body about its center of gravity.

Zero

Minimum

Maximum

None of these

Zero

Minimum

Maximum

None of these

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Theory of Machine
A point B on a rigid link AB moves with respect to A with angular velocity ω rad/s. The radial component of the acceleration of B with respect to A, is (where vBA = Linear velocity of B with respect to A)

vBA × AB

v²BA

vBA /AB

v²BA /AB

vBA × AB

v²BA

vBA /AB

v²BA /AB

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Theory of Machine

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 minimum length of the coupler will be

Theory of Machine When the crank is at the outer dead centre, in a reciprocating steam engine, then the acceleration of the piston will be

Theory of Machine The frictional torque transmitted in a flat collar bearing, considering uniform pressure, is (where r₁ and r₂ = External and internal radii of collar respectively)

Theory of Machine The relative velocity of B with respect to A in a rigid link AB is

Theory of Machine The periodic time of a compound pendulum is __________ when the distance between the point of suspension and the center of gravity is equal to the radius of gyration of the body about its center of gravity.

Theory of Machine A point B on a rigid link AB moves with respect to A with angular velocity ω rad/s. The radial component of the acceleration of B with respect to A, is (where vBA = Linear velocity of B with respect to A)

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 minimum length of the coupler will be

Theory of Machine
When the crank is at the outer dead centre, in a reciprocating steam engine, then the acceleration of the piston will be

Theory of Machine
The frictional torque transmitted in a flat collar bearing, considering uniform pressure, is (where r₁ and r₂ = External and internal radii of collar respectively)

Theory of Machine
The relative velocity of B with respect to A in a rigid link AB is

Theory of Machine
The periodic time of a compound pendulum is __________ when the distance between the point of suspension and the center of gravity is equal to the radius of gyration of the body about its center of gravity.

Theory of Machine
A point B on a rigid link AB moves with respect to A with angular velocity ω rad/s. The radial component of the acceleration of B with respect to A, is (where vBA = Linear velocity of B with respect to A)