A torsional system with discs of moment of inertia I₁ and I₂ as shown in the below figure, is gear driven such that the ratio of speed of shaft B to shaft A is 'G'. Neglecting the inertia of gears, the equivalent inertia of disc on shaft B at the speed of shaft A is equal to

Question

A torsional system with discs of moment of inertia I₁ and I₂ as shown in the below figure, is gear driven such that the ratio of speed of shaft B to shaft A is 'G'. Neglecting the inertia of gears, the equivalent inertia of disc on shaft B at the speed of shaft A is equal to

A. G.I₂

B. G².I₂

C. I₂/G

D. I₂/G²

Share this question with your friends

Show all Theory of Machines MCQ

Comment

The balancing weights are introduced in planes parallel to the plane of rotation of the disturbing mass. To obtain complete dynamic balance, the minimum number of balancing weights to be introduced in different planes is

A. 1

B. 2

C. 3

D. 4

Discuss this answer

When the sleeve of a Porter governor moves upwards, the governor speed

A. Increases

B. Decreases

C. Remain unaffected

D. First increases and then decreases

Discuss this answer

The component of the acceleration, perpendicular to the velocity of the particle, at the given instant is called

A. Radial component

B. Tangential component

C. Coriolis component

D. None of these

Discuss this answer

In a ball bearing, ball and bearing forms a

A. Turning pair

B. Rolling pair

C. Screw pair

D. Spherical pair

Discuss this answer

Relationship between the number of links (L) and number of pairs (P) is

A. P = 2L - 4

B. P = 2L + 4

C. P = 2L + 2

D. P = 2L - 2

Discuss this answer

Two heavy rotating masses are connected by shafts of lengths l₁, l₂ and l₃ and the corresponding diameters are d₁, d₂ and d₃. This system is reduced to a torsionally equivalent system having uniform diameter d = d₁ of the shaft. The equivalent length of the shaft is

A. (l₁ + l₂ + l₃)/3

B. l = l₁ + l₂.(d₁/d₂)³ + l₂.(d₁/d₃)³

C. l = l₁ + l₂.(d₁/d₂)⁴ + l₃.(d₁/d₃)⁴

D. l₁ + l₂ + l₃

Discuss this answer

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 crankpin C is given by

A. ω² × NO

B. ω² × CO

C. ω² × CN

D. ω² × QN

Discuss this answer

V-belts are usually used for

A. Long drives

B. Short drives

C. Long and short drives

D. None of these

Discuss this answer

For a kinematic chain to be considered as mechanism

A. Two links should be fixed

B. One link should be fixed

C. None of the links should be fixed

D. There is no such criterion

Discuss this answer

If ω/ω_n is very high for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach

A. 0°

B. 90°

C. 180°

D. 360°

Discuss this answer

The partial balancing means

A. Balancing partially revolving masses

B. Balancing partially reciprocating masses

C. Best balancing of engines

D. All of these

Discuss this answer

The maximum frictional force, which comes into play, when a body just begins to slide over the surface of the other body, is known as

A. Static friction

B. Dynamic friction

C. Limiting friction

D. Coefficient of friction

Discuss this answer

The contact ratio is given by

A. (Length of the path of approach)/(Circular pitch)

B. (Length of path of recess)/(Circular pitch)

C. (Length of the arc of contact)/(Circular pitch)

D. (Length of the arc of approach)/cosφ

Discuss this answer

According to Kennedy's theorem, if three bodies move relatively to each other, their instantaneous centres will lie on a

A. Straight line

B. Parabolic curve

C. Triangle

D. Rectangle

Discuss this answer

Which of the following disciplines provides study of the relative motion between the parts of a machine and the forces acting on the parts?

A. Theory of machines

B. Applied mechanics

C. Mechanisms

D. Kinetics

Discuss this answer

In elliptical trammels

A. All four pairs are turning

B. Three pairs turning and one pair sliding

C. Two pairs turning and two pairs sliding

D. One pair turning and three pairs sliding

Discuss this answer

When the load on the engine increases, it becomes necessary to increase the supply of working fluid and when the load decreases, less working fluid is required. The supply of the working fluid to the engine is controlled by a

A. D-slide valve

B. Governor

C. Meyer's expansion valve

D. Flywheel

Discuss this answer

Instantaneous center of rotation of a link in a four bar mechanism lies on

A. Right side pivot of this link

B. Left side pivot of this link

C. A point obtained by intersection on extending adjoining links

D. Cant occur

Discuss this answer

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

A. Less

B. More

C. Same

D. None of these

Discuss this answer

The sensitiveness of the governor __________ as the speed range decreases.

A. Remains unaffected

B. Decreases

C. Increases

D. None of these

Discuss this answer

A combination of kinematic pairs, joined in such a way that the relative motion between the links is completely constrained, is called a

A. Structure

B. Mechanism

C. Kinematic chain

D. Inversion

Discuss this answer

An eccentric sheave pivoted at one point rotates and transmits oscillatory motion to a link whose one end is pivoted and other end is connected to it. This mechanism has

A. 2 links

B. 3 links

C. 4 links

D. 5 links

Discuss this answer

The mechanism consisting of three turning pairs and one sliding pair, is called a

A. Single slider crank chain

B. Whitworth quick return motion mechanism

C. Crank and slotted lever quick return motion mechanism

D. All of the above

Discuss this answer

In order to give the primary balance of the reciprocating parts of a multi-cylinder inline engines,

A. The algebraic sum of the primary forces must be equal to zero

B. The algebraic sum of the couples about any point in the plane of the primary forces must be equal to zero

C. Both (A) and (B)

D. None of these

Discuss this answer

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

A. t_p /16

B. t_p /4

C. 4 t_p

D. 16 t_p

Discuss this answer

A body of weight W is required to move up the rough inclined plane whose angle of inclination with the horizontal is α. The effort applied parallel to the plane is given by (where μ = tan φ = Coefficient of friction between the plane and the body)

A. P = W tan α

B. P = W tan (α + φ)

C. P = W (sin α + μ cos α)

D. P = W (cos α + μ sin α)

Discuss this answer

The velocity of a body moving with simple harmonic motion is __________ at the mean position.

A. Zero

B. Minimum

C. Maximum

D. None of these

Discuss this answer

To transmit power from one rotating shaft to another whose axes are neither parallel nor intersecting, use?

A. Spur gear

B. Spiral gear

C. Bevel gear

D. Worm gear

Discuss this answer

The lower pairs are __________ pairs.

A. Self-closed

B. Force-closed

C. Friction closed

D. None of these

Discuss this answer

When a ship travels in a sea, which of the effect is more dangerous

A. Steering

B. Pitching

C. Rolling

D. All of the above

Discuss this answer

Accepted Answer

B. G².I₂

A torsional system with discs of moment of inertia I₁ and I₂ as shown in the below figure, is gear driven such that the ratio of speed of shaft B to shaft A is 'G'. Neglecting the inertia of gears, the equivalent inertia of disc on shaft B at the speed of shaft A is equal to

Correct Answer :

Show all Theory of Machines MCQ

Related Questions

The balancing weights are introduced in planes parallel to the plane of rotation of the disturbing mass. To obtain complete dynamic balance, the minimum number of balancing weights to be introduced in different planes is

When the sleeve of a Porter governor moves upwards, the governor speed

The component of the acceleration, perpendicular to the velocity of the particle, at the given instant is called

In a ball bearing, ball and bearing forms a

Relationship between the number of links (L) and number of pairs (P) is

Two heavy rotating masses are connected by shafts of lengths l₁, l₂ and l₃ and the corresponding diameters are d₁, d₂ and d₃. This system is reduced to a torsionally equivalent system having uniform diameter d = d₁ of the shaft. The equivalent length of the shaft is

V-belts are usually used for

For a kinematic chain to be considered as mechanism

If ω/ω_n is very high for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach

The partial balancing means

The maximum frictional force, which comes into play, when a body just begins to slide over the surface of the other body, is known as

The contact ratio is given by

According to Kennedy's theorem, if three bodies move relatively to each other, their instantaneous centres will lie on a

Which of the following disciplines provides study of the relative motion between the parts of a machine and the forces acting on the parts?

In elliptical trammels

When the load on the engine increases, it becomes necessary to increase the supply of working fluid and when the load decreases, less working fluid is required. The supply of the working fluid to the engine is controlled by a

Instantaneous center of rotation of a link in a four bar mechanism lies on

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

The sensitiveness of the governor __________ as the speed range decreases.

A combination of kinematic pairs, joined in such a way that the relative motion between the links is completely constrained, is called a

An eccentric sheave pivoted at one point rotates and transmits oscillatory motion to a link whose one end is pivoted and other end is connected to it. This mechanism has

The mechanism consisting of three turning pairs and one sliding pair, is called a

In order to give the primary balance of the reciprocating parts of a multi-cylinder inline engines,

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

A body of weight W is required to move up the rough inclined plane whose angle of inclination with the horizontal is α. The effort applied parallel to the plane is given by (where μ = tan φ = Coefficient of friction between the plane and the body)

The velocity of a body moving with simple harmonic motion is __________ at the mean position.

To transmit power from one rotating shaft to another whose axes are neither parallel nor intersecting, use?

The lower pairs are __________ pairs.

When a ship travels in a sea, which of the effect is more dangerous

Also checkout

A torsional system with discs of moment of inertia I₁ and I₂ as shown in the below figure, is gear driven such that the ratio of speed of shaft B to shaft A is 'G'. Neglecting the inertia of gears, the equivalent inertia of disc on shaft B at the speed of shaft A is equal to

Correct Answer :

Show all Theory of Machines MCQ

Related Questions

The balancing weights are introduced in planes parallel to the plane of rotation of the disturbing mass. To obtain complete dynamic balance, the minimum number of balancing weights to be introduced in different planes is

When the sleeve of a Porter governor moves upwards, the governor speed

The component of the acceleration, perpendicular to the velocity of the particle, at the given instant is called

In a ball bearing, ball and bearing forms a

Relationship between the number of links (L) and number of pairs (P) is

Two heavy rotating masses are connected by shafts of lengths l₁, l₂ and l₃ and the corresponding diameters are d₁, d₂ and d₃. This system is reduced to a torsionally equivalent system having uniform diameter d = d₁ of the shaft. The equivalent length of the shaft is

V-belts are usually used for

For a kinematic chain to be considered as mechanism

If ω/ωn is very high for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach

The partial balancing means

The maximum frictional force, which comes into play, when a body just begins to slide over the surface of the other body, is known as

The contact ratio is given by

According to Kennedy's theorem, if three bodies move relatively to each other, their instantaneous centres will lie on a

Which of the following disciplines provides study of the relative motion between the parts of a machine and the forces acting on the parts?

In elliptical trammels

When the load on the engine increases, it becomes necessary to increase the supply of working fluid and when the load decreases, less working fluid is required. The supply of the working fluid to the engine is controlled by a

Instantaneous center of rotation of a link in a four bar mechanism lies on

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

The sensitiveness of the governor __________ as the speed range decreases.

A combination of kinematic pairs, joined in such a way that the relative motion between the links is completely constrained, is called a

An eccentric sheave pivoted at one point rotates and transmits oscillatory motion to a link whose one end is pivoted and other end is connected to it. This mechanism has

The mechanism consisting of three turning pairs and one sliding pair, is called a

In order to give the primary balance of the reciprocating parts of a multi-cylinder inline engines,

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

A body of weight W is required to move up the rough inclined plane whose angle of inclination with the horizontal is α. The effort applied parallel to the plane is given by (where μ = tan φ = Coefficient of friction between the plane and the body)

The velocity of a body moving with simple harmonic motion is __________ at the mean position.

To transmit power from one rotating shaft to another whose axes are neither parallel nor intersecting, use?

The lower pairs are __________ pairs.

When a ship travels in a sea, which of the effect is more dangerous

Also checkout

If ω/ω_n is very high for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach