A thin circular disc is rolling with a uniform linear speed, along a straight path on a plane surface. Which of the following statement is correct in this regard?

Theory of Machine
A thin circular disc is rolling with a uniform linear speed, along a straight path on a plane surface. Which of the following statement is correct in this regard?

All points of the disc have the same velocity

The centre of the disc has zero acceleration

The point on the disc making contact with the plane surface has zero acceleration

The centre of the disc has centrifugal acceleration

All points of the disc have the same velocity

The centre of the disc has zero acceleration

The point on the disc making contact with the plane surface has zero acceleration

The centre of the disc has centrifugal acceleration

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The distance between fixed pivots of crank and followers is

45 mm

95 mm

Slightly less than 95 mm

Slightly more than 95 mm

45 mm

95 mm

Slightly less than 95 mm

Slightly more than 95 mm

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
The frequency of damped vibrations with viscous damping is ________ the frequency of undamped vibrations.

Less than

Same as

More than

None of these

Less than

Same as

More than

None of these

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
A flywheel is fitted to the crankshaft of an engine having W as the amount of indicated work per revolution and permissible limits of coefficient of fluctuation of energy and speed as CE and CS respectively. The kinetic energy of the flywheel is given by

W CS / 2CE

2 W CE / CS

W CE / CS

W CE / 2CS

W CS / 2CE

2 W CE / CS

W CE / CS

W CE / 2CS

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
Hammer blow

Is the maximum horizontal unbalanced force caused by the mass provided to balance the reciprocating masses.

Is the maximum vertical unbalanced force caused by the mass added to balance the reciprocating masses

Varies as the square root of the speed

Varies inversely with the square of the speed

Is the maximum horizontal unbalanced force caused by the mass provided to balance the reciprocating masses.

Is the maximum vertical unbalanced force caused by the mass added to balance the reciprocating masses

Varies as the square root of the speed

Varies inversely with the square of the speed

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
When a shaking force is transmitted through the springs, damping becomes detrimental when the ratio of its frequency to the natural frequency is greater than

0.25

2

1

0.5

0.25

2

1

0.5

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine

Theory of Machine A thin circular disc is rolling with a uniform linear speed, along a straight path on a plane surface. Which of the following statement is correct in this regard?

Theory of Machine The frequency of damped vibrations with viscous damping is ________ the frequency of undamped vibrations.

Theory of Machine A flywheel is fitted to the crankshaft of an engine having W as the amount of indicated work per revolution and permissible limits of coefficient of fluctuation of energy and speed as CE and CS respectively. The kinetic energy of the flywheel is given by

Theory of Machine Hammer blow

Theory of Machine When a shaking force is transmitted through the springs, damping becomes detrimental when the ratio of its frequency to the natural frequency is greater than

Theory of Machine
A thin circular disc is rolling with a uniform linear speed, along a straight path on a plane surface. Which of the following statement is correct in this regard?

Theory of Machine
The frequency of damped vibrations with viscous damping is ________ the frequency of undamped vibrations.

Theory of Machine
A flywheel is fitted to the crankshaft of an engine having W as the amount of indicated work per revolution and permissible limits of coefficient of fluctuation of energy and speed as CE and CS respectively. The kinetic energy of the flywheel is given by

Theory of Machine
Hammer blow

Theory of Machine
When a shaking force is transmitted through the springs, damping becomes detrimental when the ratio of its frequency to the natural frequency is greater than