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 (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

m.ω².r (sin 2θ/n)

m.ω².r sinθ

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Theory of Machine
The displacement of the D-slide valve is __________ the steam lap by a distance known as lead of the valve.

Less than

Greater than

None of these

Equal to

Less than

Greater than

None of these

Equal to

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Theory of Machine
A ball and a socket forms a

Rolling pair

Screw pair

Spherical pair

Turning pair

Rolling pair

Screw pair

Spherical pair

Turning pair

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Theory of Machine
The maximum or minimum value of the swaying couple is

± c.m.ω².r

± a (1 - c) m.ω².r

± (a/√2) (1 - c) m.ω².r

± 2a (1 - c) m.ω².r

± c.m.ω².r

± a (1 - c) m.ω².r

± (a/√2) (1 - c) m.ω².r

± 2a (1 - c) m.ω².r

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Theory of Machine
The example of rolling pair is

Ball bearing and roller bearing

Ball and socket joint

Lead screw of a lathe

Bolt and nut

Ball bearing and roller bearing

Ball and socket joint

Lead screw of a lathe

Bolt and nut

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Theory of Machine
The values of velocity and acceleration of piston at near dead center for a slider-crank mechanism will be

0, and less than coV

0, 0

0, and more than co2r

cor, 0

0, and less than coV

0, 0

0, and more than co2r

cor, 0

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Theory of Machine

Theory of Machine The displacement of the D-slide valve is __________ the steam lap by a distance known as lead of the valve.

Theory of Machine A ball and a socket forms a

Theory of Machine The maximum or minimum value of the swaying couple is

Theory of Machine The example of rolling pair is

Theory of Machine The values of velocity and acceleration of piston at near dead center for a slider-crank mechanism will be

Theory of Machine
The displacement of the D-slide valve is __________ the steam lap by a distance known as lead of the valve.

Theory of Machine
A ball and a socket forms a

Theory of Machine
The maximum or minimum value of the swaying couple is

Theory of Machine
The example of rolling pair is

Theory of Machine
The values of velocity and acceleration of piston at near dead center for a slider-crank mechanism will be