The velocity of piston in a reciprocating steam engine is given by (where ω = Angular velocity of crank, r = Radius of crank pin circle, θ = Angle turned by crank from inner dead center, and n = Ratio of length of connecting rod to the radius of crank)

Theory of Machine
The velocity of piston in a reciprocating steam engine is given by (where ω = Angular velocity of crank, r = Radius of crank pin circle, θ = Angle turned by crank from inner dead center, and n = Ratio of length of connecting rod to the radius of crank)

ωr [sin θ + (sin 2θ/n)]

ωr [cos θ + (cos 2θ/n)]

ω²r [sin θ + (sin 2θ/n)]

ω²r [cos θ + (cos 2θ/n)]

ωr [sin θ + (sin 2θ/n)]

ωr [cos θ + (cos 2θ/n)]

ω²r [sin θ + (sin 2θ/n)]

ω²r [cos θ + (cos 2θ/n)]

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Theory of Machine
A mass of 1 kg is attached to the end of a spring with a stiffness of 0.7 N/mm. The critical damping coefficient of this system is

1.4 N-s/m

52.92 N-s/m

529.2 N-s/m

18.52 N-s/m

1.4 N-s/m

52.92 N-s/m

529.2 N-s/m

18.52 N-s/m

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Theory of Machine
When the pitching of a ship is __________ the effect of gyroscopic couple acting on it will be to move the ship towards port side.

Forward

Backward

Downward

Upward

Forward

Backward

Downward

Upward

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Theory of Machine
The amplitude of vibration is always __________ the radius of the circle.

Equal to

Less than

Greater than

None of these

Equal to

Less than

Greater than

None of these

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Theory of Machine
The critical speed of a shaft with a disc supported in between is equal to the natural frequency of the system in

Torsional vibrations

Transverse vibrations

Longitudinal vibrations

All of these

Torsional vibrations

Transverse vibrations

Longitudinal vibrations

All of these

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Theory of Machine
In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line of stroke PO and rotates with uniform angular velocity at ω rad/s. The Klien's acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral CQNO. The acceleration of the piston P with respect to the crank-pin C is given by

ω² × QN

ω² × CN

ω² × NO

ω² × CO

ω² × QN

ω² × CN

ω² × NO

ω² × CO

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Theory of Machine

Theory of Machine The velocity of piston in a reciprocating steam engine is given by (where ω = Angular velocity of crank, r = Radius of crank pin circle, θ = Angle turned by crank from inner dead center, and n = Ratio of length of connecting rod to the radius of crank)

Theory of Machine A mass of 1 kg is attached to the end of a spring with a stiffness of 0.7 N/mm. The critical damping coefficient of this system is

Theory of Machine When the pitching of a ship is __________ the effect of gyroscopic couple acting on it will be to move the ship towards port side.

Theory of Machine The amplitude of vibration is always __________ the radius of the circle.

Theory of Machine The critical speed of a shaft with a disc supported in between is equal to the natural frequency of the system in

Theory of Machine
The velocity of piston in a reciprocating steam engine is given by (where ω = Angular velocity of crank, r = Radius of crank pin circle, θ = Angle turned by crank from inner dead center, and n = Ratio of length of connecting rod to the radius of crank)

Theory of Machine
A mass of 1 kg is attached to the end of a spring with a stiffness of 0.7 N/mm. The critical damping coefficient of this system is

Theory of Machine
When the pitching of a ship is __________ the effect of gyroscopic couple acting on it will be to move the ship towards port side.

Theory of Machine
The amplitude of vibration is always __________ the radius of the circle.

Theory of Machine
The critical speed of a shaft with a disc supported in between is equal to the natural frequency of the system in