Which of the following is a pendulum type governor?

Question

Which of the following is a pendulum type governor?

A. Watt governor

B. Porter governor

C. Hartnell governor

D. None of these

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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°

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The Hooke's joint consists of:

A. Two forks

B. One fork

C. Three forks

D. Four forks

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The ratio of height of Porter governor (when length of arms and links are equal) to the height of Watt's governor is (where m = Mass of the ball, and M = Mass on the sleeve)

A. m/(m + M)

B. M/(m + M)

C. (m + M)/m

D. (m + M)/M

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A point on a link connecting double slider crank chain traces a

A. Ellipse

B. Circle

C. Parabola

D. Hyperbola

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The coriolis component of acceleration is taken into account for

A. Slider crank mechanism

B. Four bar chain mechanism

C. Quick return motion mechanism

D. All of these

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In a pantograph, all the pairs are

A. Turning pairs

B. Sliding pairs

C. Spherical pairs

D. Self-closed pairs

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A system in dynamic balance implies that

A. The system is critically damped

B. There is no critical speed in the system

C. The system is also statically balanced

D. There will absolutely no wear of bearings

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In a coupling rod of a locomotive, each of the four pairs is a ________ pair.

A. Sliding

B. Turning

C. Rolling

D. Screw

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The height of a Watt's governor (in metres) is equal to (where N = Speed of the arm and ball about the spindle axis)

A. 8.95/N²

B. 89.5/N²

C. 895/N²

D. 8950/N²

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In vibration isolation system, if ω/ωn > 1, then the phase difference between the transmitted force and the disturbing force is

A. 0°

B. 90°

C. 180°

D. 270°

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The frictional torque transmitted in a flat pivot bearing, considering uniform wear, is (where μ = Coefficient of friction, W = Load over the bearing, and R = Radius of bearing surface)

A. (1/2) μ W R

B. (2/3) μ W R

C. (3/4) μ W R

D. μ W R

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The dedendum circle diameter is equal to (where, φ = Pressure angle)

A. Pitch circle dia. × cosφ

B. Addendum circle dia. × cosφ

C. Clearance circle dia. × cosφ

D. Pitch circle dia. × sinφ

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With single Hooke's joint it is possible to connect two shafts, the axes of which have an angular misalignment up to

A. 10°

B. 20°

C. 30°

D. 40°

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The length of a simple pendulum which gives the same frequency as the compound pendulum, is

A. k_G + l₁

B. k_G² + l₁

C. (k_G² + l₁²)/ l₁

D. (k_G + l₁²)/ l₁

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Flexible coupling is used because

A. It is easy to disassemble

B. It is easy to engage and disengage

C. It transmits shocks gradually

D. It prevents shock transmission and eliminates stress reversals

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The relative velocity of B with respect to A in a rigid link AB is

A. Parallel to AB

B. Perpendicular to AB

C. Along AB

D. At 45° to AB

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When a body is subjected to transverse vibrations, the stress induced in a body will be

A. Shear stress

B. Bending stress

C. Tensile stress

D. Compressive stress

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The minimum periodic time of a compound pendulum is

A. (1/2π). √(k_G/g)

B. (1/2π). √(2k_G/g)

C. 2π. √(k_G/g)

D. 2π. √(2k_G/g)

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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

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The pressure angle of a cam depends upon

A. Offset between centre lines of cam and follower

B. Lift of follower

C. Angle of ascent

D. All of the above

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The acceleration of a flat-faced follower when it has contact with the flank of a circular arc cam, is given by

A. ω² R cosθ

B. ω² (R - r₁) cosθ

C. ω² (R - r₁) sinθ

D. ω² r₁ sinθ

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Ball and a Socket forms a

A. Turning pair

B. Rolling pair

C. Screw pair

D. Spherical pair

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The relation between number of links (l) and number of joints (j) in a kinematic chain is

A. l = (1/2).(j + 2)

B. l = (2/3).(j + 2)

C. l = (3/4).(j + 3)

D. l = j + 4

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Klein's construction gives a graphic construction for

A. Slider-crank mechanism

B. Velocity polygon

C. Acceleration polygon

D. Four bar chain mechanism

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For an isochronous Hartnell governor (where r₁ and r₂ = Maximum and minimum radius of rotation of balls respectively, S₁ and S₂ = Maximum and minimum force exerted on the sleeve respectively, and M = Mass on the sleeve)

A. (m.g + S₁)/(m.g + S₂) = r₁/r₂

B. (m.g - S₁)/(m.g - S₂) = r₂/r₁

C. S₁/S₂ = r₁/r₂

D. S₂/S₁ = r₁/r₂

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The Ackerman steering gear mechanism is preferred to the Davis steering gear mechanism, because

A. Whole of the mechanism in the Ackerman steering gear is on the back of the front wheels

B. The Ackerman steering gear consists of turning pairs

C. The Ackerman steering gear is most economical

D. Both (A) and (B)

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It is required to connect two parallel shafts, the distance between whose axes is small and variable. The shafts are coupled by

A. Universal joint

B. Knuckle joint

C. Oldham's coupling

D. Flexible coupling

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The Coriolis component of acceleration acts

A. Along the sliding surface

B. Perpendicular to the sliding surface

C. At 45° to the sliding surface

D. Parallel to the sliding surface

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Rectangular bar in a rectangular hole is the following type of pair

A. Completely constrained motion

B. Partially constrained motion

C. Incompletely constrained motion

D. Freely constrained motion

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The maximum fluctuation of speed is the

A. Difference of minimum fluctuation of speed and the mean speed

B. Difference of the maximum and minimum speeds

C. Sum of maximum and minimum speeds

D. Variations of speed above and below the mean resisting torque line

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Accepted Answer

A. Watt governor

Which of the following is a pendulum type governor?

Correct Answer :

Show all Theory of Machines MCQ

Related Questions

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 Hooke's joint consists of:

The ratio of height of Porter governor (when length of arms and links are equal) to the height of Watt's governor is (where m = Mass of the ball, and M = Mass on the sleeve)

A point on a link connecting double slider crank chain traces a

The coriolis component of acceleration is taken into account for

In a pantograph, all the pairs are

A system in dynamic balance implies that

In a coupling rod of a locomotive, each of the four pairs is a ________ pair.

The height of a Watt's governor (in metres) is equal to (where N = Speed of the arm and ball about the spindle axis)

In vibration isolation system, if ω/ωn > 1, then the phase difference between the transmitted force and the disturbing force is

The frictional torque transmitted in a flat pivot bearing, considering uniform wear, is (where μ = Coefficient of friction, W = Load over the bearing, and R = Radius of bearing surface)

The dedendum circle diameter is equal to (where, φ = Pressure angle)

With single Hooke's joint it is possible to connect two shafts, the axes of which have an angular misalignment up to

The length of a simple pendulum which gives the same frequency as the compound pendulum, is

Flexible coupling is used because

The relative velocity of B with respect to A in a rigid link AB is

When a body is subjected to transverse vibrations, the stress induced in a body will be

The minimum periodic time of a compound pendulum is

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

The pressure angle of a cam depends upon

The acceleration of a flat-faced follower when it has contact with the flank of a circular arc cam, is given by

Ball and a Socket forms a

The relation between number of links (l) and number of joints (j) in a kinematic chain is

Klein's construction gives a graphic construction for

For an isochronous Hartnell governor (where r₁ and r₂ = Maximum and minimum radius of rotation of balls respectively, S₁ and S₂ = Maximum and minimum force exerted on the sleeve respectively, and M = Mass on the sleeve)

The Ackerman steering gear mechanism is preferred to the Davis steering gear mechanism, because

It is required to connect two parallel shafts, the distance between whose axes is small and variable. The shafts are coupled by

The Coriolis component of acceleration acts

Rectangular bar in a rectangular hole is the following type of pair

The maximum fluctuation of speed is the

Also checkout

Which of the following is a pendulum type governor?

Correct Answer :

Show all Theory of Machines MCQ

Related Questions

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 Hooke's joint consists of:

The ratio of height of Porter governor (when length of arms and links are equal) to the height of Watt's governor is (where m = Mass of the ball, and M = Mass on the sleeve)

A point on a link connecting double slider crank chain traces a

The coriolis component of acceleration is taken into account for

In a pantograph, all the pairs are

A system in dynamic balance implies that

In a coupling rod of a locomotive, each of the four pairs is a ________ pair.

The height of a Watt's governor (in metres) is equal to (where N = Speed of the arm and ball about the spindle axis)

In vibration isolation system, if ω/ωn > 1, then the phase difference between the transmitted force and the disturbing force is

The frictional torque transmitted in a flat pivot bearing, considering uniform wear, is (where μ = Coefficient of friction, W = Load over the bearing, and R = Radius of bearing surface)

The dedendum circle diameter is equal to (where, φ = Pressure angle)

With single Hooke's joint it is possible to connect two shafts, the axes of which have an angular misalignment up to

The length of a simple pendulum which gives the same frequency as the compound pendulum, is

Flexible coupling is used because

The relative velocity of B with respect to A in a rigid link AB is

When a body is subjected to transverse vibrations, the stress induced in a body will be

The minimum periodic time of a compound pendulum is

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

The pressure angle of a cam depends upon

The acceleration of a flat-faced follower when it has contact with the flank of a circular arc cam, is given by

Ball and a Socket forms a

The relation between number of links (l) and number of joints (j) in a kinematic chain is

Klein's construction gives a graphic construction for

For an isochronous Hartnell governor (where r₁ and r₂ = Maximum and minimum radius of rotation of balls respectively, S₁ and S₂ = Maximum and minimum force exerted on the sleeve respectively, and M = Mass on the sleeve)

The Ackerman steering gear mechanism is preferred to the Davis steering gear mechanism, because

It is required to connect two parallel shafts, the distance between whose axes is small and variable. The shafts are coupled by

The Coriolis component of acceleration acts

Rectangular bar in a rectangular hole is the following type of pair

The maximum fluctuation of speed is the

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