The primary unbalanced force due to inertia of reciprocating parts in a reciprocating engine is given by (where m = Mass of reciprocating parts, ω = Angular speed of crank, r = Radius of crank, θ = Angle of inclination of crank with the line of stroke, and n = Ratio of the length of connecting rod to radius of crank)

Theory of Machine
The primary unbalanced force due to inertia of reciprocating parts in a reciprocating engine is given by (where m = Mass of reciprocating parts, ω = Angular speed of crank, r = Radius of crank, θ = Angle of inclination of crank with the line of stroke, and n = Ratio of the length of connecting rod to radius of crank)

m.ω².r (sin 2θ/n)

m.ω².r sinθ

m.ω².r (cos 2θ/n)

m.ω².r cosθ

m.ω².r (sin 2θ/n)

m.ω².r sinθ

m.ω².r (cos 2θ/n)

m.ω².r cosθ

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Theory of Machine
Length of arc of contact is given by

Arc of approach / Arc of recess

Arc of approach + Arc of recess

Arc of approach × Arc of recess

Arc of approach - Arc of recess

Arc of approach / Arc of recess

Arc of approach + Arc of recess

Arc of approach × Arc of recess

Arc of approach - Arc of recess

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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
The radius of a friction circle for a shaft rotating inside a bearing is (where r = Radius of shaft, and tan φ = Coefficient of friction between the shaft and bearing)

r tanφ

r cosφ

r sinφ

(r/2) cosφ

r tanφ

r cosφ

r sinφ

(r/2) cosφ

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Theory of Machine
In a cone pulley, if the sum of radii of the pulleys on the driving and driven shafts is constant, then

The drive is recommended depending upon the torque transmitted

Open belt drive is recommended

Both open belt drive and crossed belt drive is recommended

Crossed belt drive is recommended

The drive is recommended depending upon the torque transmitted

Open belt drive is recommended

Both open belt drive and crossed belt drive is recommended

Crossed belt drive is recommended

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Theory of Machine
A body in motion will be subjected to Coriolis acceleration when that body is

In plane motion which is a resultant of plane translation and rotation

Restrained to rotate while sliding over another body

In plane rotation with variable velocity

In plane translation with variable velocity

In plane motion which is a resultant of plane translation and rotation

Restrained to rotate while sliding over another body

In plane rotation with variable velocity

In plane translation with variable velocity

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Theory of Machine

Theory of Machine Length of arc of contact is given by

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 The radius of a friction circle for a shaft rotating inside a bearing is (where r = Radius of shaft, and tan φ = Coefficient of friction between the shaft and bearing)

Theory of Machine In a cone pulley, if the sum of radii of the pulleys on the driving and driven shafts is constant, then

Theory of Machine A body in motion will be subjected to Coriolis acceleration when that body is

Theory of Machine
Length of arc of contact is given by

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
The radius of a friction circle for a shaft rotating inside a bearing is (where r = Radius of shaft, and tan φ = Coefficient of friction between the shaft and bearing)

Theory of Machine
In a cone pulley, if the sum of radii of the pulleys on the driving and driven shafts is constant, then

Theory of Machine
A body in motion will be subjected to Coriolis acceleration when that body is