A foot step bearing and rotor of a vertical turbine form examples of

Question

A foot step bearing and rotor of a vertical turbine form examples of

A. Incompletely constrained motion

B. Partially constrained motion

C. Completely constrained motion

D. Successfully constrained motion

Share this question with your friends

Show all Theory of Machines MCQ

Comment

A cam mechanism imparts following motion

A. Rotating

B. Oscillating

C. Reciprocating

D. All of the above

Discuss this answer

Angle of descent of cam is defined as the angle

A. During which the follower returns to its initial position

B. Of rotation of the cam for a definite displacement of the follower

C. Through which the cam rotates during the period in which the follower remains in the highest position

D. Moved by the cam from the instant the follower begins to rise, till it reaches its highest position

Discuss this answer

Elements of pairs held together mechanically is known as

A. Closed pair

B. Open pair

C. Mechanical pair

D. Rolling pair

Discuss this answer

The pair is known as a higher pair, when the relative motion between the elements of a pair is

A. Turning only

B. Sliding only

C. Rolling only

D. Partly turning and partly sliding

Discuss this answer

In steady state forced vibrations, the amplitude of vibrations at resonance is __________ damping coefficient.

A. Equal to

B. Directly proportional to

C. Inversely proportional to

D. Independent of

Discuss this answer

Ball and a Socket forms a

A. Turning pair

B. Rolling pair

C. Screw pair

D. Spherical pair

Discuss this answer

In an ideal machine, the output as compared to input is

A. Less

B. More

C. Equal

D. May be less or more depending on efficiency

Discuss this answer

The frequency of oscillation at compared to earth will be

A. 6 times more

B. 6 times less

C. 2.44 times more

D. 2.44 times less

Discuss this answer

For simple harmonic motion of the of follower, a cosine curve represents

A. Displacement diagram

B. Velocity diagram

C. Acceleration diagram

D. All of the above

Discuss this answer

Which of the following is used to control the speed variations of the engine caused by the fluctuations of the engine turning moment?

A. D-slide valve

B. Governor

C. Flywheel

D. Meyer's expansion valve

Discuss this answer

Which of the following statement is wrong?

A. The difference between the maximum and minimum energies is called maximum fluctuation of energy

B. The coefficient of fluctuation of speed is the ratio of maximum fluctuation of speed to the mean speed

C. The variations of energy above and below the mean resisting torque line is known as fluctuation of energy

D. None of the above

Discuss this answer

The coriolis component of acceleration depends upon

A. Velocity of slider

B. Angular velocity of the link

C. Both (A) and (B)

D. None of these

Discuss this answer

The frequency of oscillation of a compound pendulum is

A. 2π. √[gh/(k_G² + h²)]

B. 2π. √[(k_G² + h²)/gh]

C. (1/2π). √[gh/(k_G² + h²)]

D. (1/2π). √[(k_G² + h²)/gh]

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

3.The retardation of a flat faced follower when it has contact at the apex of the nose of a circular arc cam, is given by (where OQ = Distance between the centre of circular flank and centre of nose)

A. ω² × OQ

B. ω² × OQ sinθ

C. ω² × OQ cosθ

D. ω² × OQ tanθ

Discuss this answer

When the belt is stationary, it is subjected to some tension known as initial tension. The value of this tension is equal to the

A. Tension in the tight side of the belt

B. Tension in the slack side of the belt

C. Sum of the tensions on the tight side and slack side of the belt

D. Average tension of the tight side and slack side of the belt

Discuss this answer

In a band and block brake, the ratio of tensions on tight side and slack side of the band is (where μ = Coefficient of friction between the blocks and the drum, θ = Semi-angle of each block subtending at the centre of drum, and n = Number of blocks)

A. T₁/T₂ = μ. θ. n

B. T₁/T₂ = [(1 - μ tanθ)/(1 + μ tanθ)]n

C. T₁/T₂ = (μ θ)n

D. T₁/T₂ = [(1 + μ tanθ)/(1 - μ tanθ)]n

Discuss this answer

A point B on a rigid link AB moves with respect to A with angular velocity ω rad/s. The total acceleration of B with respect to A will be equal to

A. Vector sum of radial component and coriolis component

B. Vector sum of tangential component and coriolis component

C. Vector sum of radial component and tangential component

D. Vector difference of radial component and tangential component

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

Balancing of rotating and reciprocating parts of an engine is necessary when it runs at

A. Slow speed

B. Moderate speed

C. Highs peed

D. Any one of these

Discuss this answer

In railway axle boxes, the bearing used is

A. Deep groove ball bearing

B. Double row self aligning ball bearing

C. Double row spherical roller bearing

D. Cylindrical roller bearing

Discuss this answer

Efficiency of a screw jack is given by

A. tan (α + φ)/tanα

B. tanα/tan (α +φ)

C. tan (α - φ)/tanα

D. tanα/tan (α - φ)

Discuss this answer

Which of the following mechanism is an approximate straight line motion mechanism?

A. Watt's mechanism

B. Grasshopper mechanism

C. Robert's mechanism

D. All of these

Discuss this answer

The unbalanced primary forces in a reciprocating engine are

A. Balanced completely

B. Balanced partially

C. Balanced by secondary forces

D. Not balanced

Discuss this answer

The gear train usually employed in clocks is a

A. Simple gear train

B. Reverted gear train

C. Sun and planet gear

D. Differential gear

Discuss this answer

The minimum force required to slide a body of weight W on a rough horizontal plane is

A. W sinθ

B. W cosθ

C. W tanθ

D. W cosecθ

Discuss this answer

In a vibrating system, if the actual damping coefficient is 40 N/m/s and critical damping coefficient is 420 N/m/s, then logarithmic decrement is equal to

A. 0.2

B. 0.4

C. 0.6

D. 0.8

Discuss this answer

Consider the following mechanisms:
1. Oscillating cylinder engine mechanism
2. Toggle mechanism
3. Radial cylinder engine mechanism
4. Quick return mechanism Which of the above are inversions of slider crank mechanism?

A. 1, 2 and 4

B. 2, 3 and 4

C. 1, 2 and 3

D. 1, 3 and 4

Discuss this answer

In a multiple V-belt drive, if one of the belts is broken, then we should replace

A. The broken belt only

B. All the belts

C. The broken belt and the belts on either side of it

D. None of the above

Discuss this answer

Which of the following is an inversion of a double slider crank chain?

A. Oldham's coupling

B. Elliptical trammel

C. Scotch yoke mechanism

D. All of these

Discuss this answer

Accepted Answer

B. Partially constrained motion

A foot step bearing and rotor of a vertical turbine form examples of

Correct Answer :

Show all Theory of Machines MCQ

Related Questions

A cam mechanism imparts following motion

Angle of descent of cam is defined as the angle

Elements of pairs held together mechanically is known as

The pair is known as a higher pair, when the relative motion between the elements of a pair is

In steady state forced vibrations, the amplitude of vibrations at resonance is __________ damping coefficient.

Ball and a Socket forms a

In an ideal machine, the output as compared to input is

The frequency of oscillation at compared to earth will be

For simple harmonic motion of the of follower, a cosine curve represents

Which of the following is used to control the speed variations of the engine caused by the fluctuations of the engine turning moment?

Which of the following statement is wrong?

The coriolis component of acceleration depends upon

The frequency of oscillation of a compound pendulum is

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

3.The retardation of a flat faced follower when it has contact at the apex of the nose of a circular arc cam, is given by (where OQ = Distance between the centre of circular flank and centre of nose)

When the belt is stationary, it is subjected to some tension known as initial tension. The value of this tension is equal to the

In a band and block brake, the ratio of tensions on tight side and slack side of the band is (where μ = Coefficient of friction between the blocks and the drum, θ = Semi-angle of each block subtending at the centre of drum, and n = Number of blocks)

A point B on a rigid link AB moves with respect to A with angular velocity ω rad/s. The total acceleration of B with respect to A will be equal to

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

Balancing of rotating and reciprocating parts of an engine is necessary when it runs at

In railway axle boxes, the bearing used is

Efficiency of a screw jack is given by

Which of the following mechanism is an approximate straight line motion mechanism?

The unbalanced primary forces in a reciprocating engine are

The gear train usually employed in clocks is a

The minimum force required to slide a body of weight W on a rough horizontal plane is

In a vibrating system, if the actual damping coefficient is 40 N/m/s and critical damping coefficient is 420 N/m/s, then logarithmic decrement is equal to

Consider the following mechanisms:
1. Oscillating cylinder engine mechanism
2. Toggle mechanism
3. Radial cylinder engine mechanism
4. Quick return mechanism Which of the above are inversions of slider crank mechanism?

In a multiple V-belt drive, if one of the belts is broken, then we should replace

Which of the following is an inversion of a double slider crank chain?

Also checkout

A foot step bearing and rotor of a vertical turbine form examples of

Correct Answer :

Show all Theory of Machines MCQ

Related Questions

A cam mechanism imparts following motion

Angle of descent of cam is defined as the angle

Elements of pairs held together mechanically is known as

The pair is known as a higher pair, when the relative motion between the elements of a pair is

In steady state forced vibrations, the amplitude of vibrations at resonance is __________ damping coefficient.

Ball and a Socket forms a

In an ideal machine, the output as compared to input is

The frequency of oscillation at compared to earth will be

For simple harmonic motion of the of follower, a cosine curve represents

Which of the following is used to control the speed variations of the engine caused by the fluctuations of the engine turning moment?

Which of the following statement is wrong?

The coriolis component of acceleration depends upon

The frequency of oscillation of a compound pendulum is

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

3.The retardation of a flat faced follower when it has contact at the apex of the nose of a circular arc cam, is given by (where OQ = Distance between the centre of circular flank and centre of nose)

When the belt is stationary, it is subjected to some tension known as initial tension. The value of this tension is equal to the

In a band and block brake, the ratio of tensions on tight side and slack side of the band is (where μ = Coefficient of friction between the blocks and the drum, θ = Semi-angle of each block subtending at the centre of drum, and n = Number of blocks)

A point B on a rigid link AB moves with respect to A with angular velocity ω rad/s. The total acceleration of B with respect to A will be equal to

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

Balancing of rotating and reciprocating parts of an engine is necessary when it runs at

In railway axle boxes, the bearing used is

Efficiency of a screw jack is given by

Which of the following mechanism is an approximate straight line motion mechanism?

The unbalanced primary forces in a reciprocating engine are

The gear train usually employed in clocks is a

The minimum force required to slide a body of weight W on a rough horizontal plane is

In a vibrating system, if the actual damping coefficient is 40 N/m/s and critical damping coefficient is 420 N/m/s, then logarithmic decrement is equal to

Consider the following mechanisms:1. Oscillating cylinder engine mechanism2. Toggle mechanism3. Radial cylinder engine mechanism4. Quick return mechanism Which of the above are inversions of slider crank mechanism?

In a multiple V-belt drive, if one of the belts is broken, then we should replace

Which of the following is an inversion of a double slider crank chain?

Also checkout

Consider the following mechanisms:
1. Oscillating cylinder engine mechanism
2. Toggle mechanism
3. Radial cylinder engine mechanism
4. Quick return mechanism Which of the above are inversions of slider crank mechanism?