A machine mounted on a single coil spring has a period of free vibration of tp . If the spring is cut into four equal parts and placed in parallel and the machine is mounted on them, then the period of free vibration of the new system will become

Theory of Machine
A machine mounted on a single coil spring has a period of free vibration of tp . If the spring is cut into four equal parts and placed in parallel and the machine is mounted on them, then the period of free vibration of the new system will become

16 tp

4 tp

tp /16

tp /4

16 tp

4 tp

tp /16

tp /4

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Theory of Machine
Sensitiveness of the governor is defined as the ratio of the

Mean speed to the minimum equilibrium speed

Mean speed to the maximum equilibrium speed

Sum of the maximum and minimum equilibrium speeds to the mean speed

Difference of the maximum and minimum equilibrium speeds to the mean speed

Mean speed to the minimum equilibrium speed

Mean speed to the maximum equilibrium speed

Sum of the maximum and minimum equilibrium speeds to the mean speed

Difference of the maximum and minimum equilibrium speeds to the mean speed

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Theory of Machine
The frictional torque transmitted in a flat pivot bearing with assumption of uniform pressure is _________ as compared to uniform wear.

Less

Same

More

None of the listed here

Less

Same

More

None of the listed here

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Theory of Machine
Which one of the following can completely balance several masses revolving in different planes on a shaft?

Two masses in any two planes

A single mass in different planes

A single mass in one of the planes of the revolving masses

Two equal masses in any two planes

Two masses in any two planes

A single mass in different planes

A single mass in one of the planes of the revolving masses

Two equal masses in any two planes

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Theory of Machine
In a screw jack, the effort required to lift the load W is given by (where α = Helix angle, and φ = Angle of friction)

P = W tan(α + φ)

P = W cos(α + φ)

P = W tan(α - φ)

P = W tan(φ - α)

P = W tan(α + φ)

P = W cos(α + φ)

P = W tan(α - φ)

P = W tan(φ - α)

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Theory of Machine
The natural frequency of free torsional vibrations of a shaft is equal to (where q = Torsional stiffness of the shaft, and I = Mass moment of inertia of the disc attached at the end of a shaft)

2π qI

1/2π

2π. √(q/I)

(1/2π). √(q/I)

2π qI

1/2π

2π. √(q/I)

(1/2π). √(q/I)

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Theory of Machine

Theory of Machine A machine mounted on a single coil spring has a period of free vibration of tp . If the spring is cut into four equal parts and placed in parallel and the machine is mounted on them, then the period of free vibration of the new system will become

Theory of Machine Sensitiveness of the governor is defined as the ratio of the

Theory of Machine The frictional torque transmitted in a flat pivot bearing with assumption of uniform pressure is _________ as compared to uniform wear.

Theory of Machine Which one of the following can completely balance several masses revolving in different planes on a shaft?

Theory of Machine In a screw jack, the effort required to lift the load W is given by (where α = Helix angle, and φ = Angle of friction)

Theory of Machine The natural frequency of free torsional vibrations of a shaft is equal to (where q = Torsional stiffness of the shaft, and I = Mass moment of inertia of the disc attached at the end of a shaft)

Theory of Machine
A machine mounted on a single coil spring has a period of free vibration of tp . If the spring is cut into four equal parts and placed in parallel and the machine is mounted on them, then the period of free vibration of the new system will become

Theory of Machine
Sensitiveness of the governor is defined as the ratio of the

Theory of Machine
The frictional torque transmitted in a flat pivot bearing with assumption of uniform pressure is _________ as compared to uniform wear.

Theory of Machine
Which one of the following can completely balance several masses revolving in different planes on a shaft?

Theory of Machine
In a screw jack, the effort required to lift the load W is given by (where α = Helix angle, and φ = Angle of friction)

Theory of Machine
The natural frequency of free torsional vibrations of a shaft is equal to (where q = Torsional stiffness of the shaft, and I = Mass moment of inertia of the disc attached at the end of a shaft)