A shaft has an attached disc at the centre of its length. The disc has its centre of gravity located at a distance of 2 mm from the axis of the shaft. When the shaft is allowed to vibrate in its natural bow-shaped mode, it has a frequency of vibration of 10 rad/s. When the shaft is rotated at 300 r.p.m., it will whirl with a radius of

Theory of Machine
A shaft has an attached disc at the centre of its length. The disc has its centre of gravity located at a distance of 2 mm from the axis of the shaft. When the shaft is allowed to vibrate in its natural bow-shaped mode, it has a frequency of vibration of 10 rad/s. When the shaft is rotated at 300 r.p.m., it will whirl with a radius of

2 mm

2.50 mm

3.0 mm

2.22 mm

2 mm

2.50 mm

3.0 mm

2.22 mm

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
A governor is said to be stable, if the

Radius of rotation of balls decreases as the equilibrium speed decreases

Radius of rotation of balls decreases as the equilibrium speed increases

Radius of rotation of balls increases as the equilibrium speed increases

Radius of rotation of balls increases as the equilibrium speed decreases

Radius of rotation of balls decreases as the equilibrium speed decreases

Radius of rotation of balls decreases as the equilibrium speed increases

Radius of rotation of balls increases as the equilibrium speed increases

Radius of rotation of balls increases as the equilibrium speed decreases

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
If the rotating mass of a rim type flywheel is distributed on another rim type flywheel whose mean radius is half the mean radius of the former, then energy stored in the latter at the same speed will be

One and a half times the first one

One fourth of the first one

Four times the first one

Same as the first one

One and a half times the first one

One fourth of the first one

Four times the first one

Same as the first one

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
The power of a Porter governor is equal to

[2c²/(1 + 2c)] (m + M) g.h

[4c²/(1 + 2c)] (m + M) g.h

[3c²/(1 + 2c)] (m + M) g.h

[c²/(1 + 2c)] (m + M) g.h

[2c²/(1 + 2c)] (m + M) g.h

[4c²/(1 + 2c)] (m + M) g.h

[3c²/(1 + 2c)] (m + M) g.h

[c²/(1 + 2c)] (m + M) g.h

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
Which of the following is an example of sliding pair?

Ball and a socket joint

Shaft with collars at both ends fitted into a circular hole

Lead screw of a lathe with nut

Piston and cylinder of a reciprocating steam engine

Ball and a socket joint

Shaft with collars at both ends fitted into a circular hole

Lead screw of a lathe with nut

Piston and cylinder of a reciprocating steam engine

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
The frictional torque transmitted in a truncated conical pivot bearing, considering uniform pressure, is

(1/2). μ W cosecα [(r₁³ - r₂³)/(r₁² - r₂²)]

(2/3). μ W cosecα (r₁ + r₂)

(1/2). μ W cosecα (r₁ + r₂)

(2/3). μ W cosecα [(r₁³ - r₂³)/(r₁² - r₂²)]

(1/2). μ W cosecα [(r₁³ - r₂³)/(r₁² - r₂²)]

(2/3). μ W cosecα (r₁ + r₂)

(1/2). μ W cosecα (r₁ + r₂)

(2/3). μ W cosecα [(r₁³ - r₂³)/(r₁² - r₂²)]

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine

Theory of Machine A governor is said to be stable, if the

Theory of Machine If the rotating mass of a rim type flywheel is distributed on another rim type flywheel whose mean radius is half the mean radius of the former, then energy stored in the latter at the same speed will be

Theory of Machine The power of a Porter governor is equal to

Theory of Machine Which of the following is an example of sliding pair?

Theory of Machine The frictional torque transmitted in a truncated conical pivot bearing, considering uniform pressure, is

Theory of Machine
A governor is said to be stable, if the

Theory of Machine
If the rotating mass of a rim type flywheel is distributed on another rim type flywheel whose mean radius is half the mean radius of the former, then energy stored in the latter at the same speed will be

Theory of Machine
The power of a Porter governor is equal to

Theory of Machine
Which of the following is an example of sliding pair?

Theory of Machine
The frictional torque transmitted in a truncated conical pivot bearing, considering uniform pressure, is