Klein's construction is useful to determine

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Klein's construction is useful to determine

A. Velocity of various parts

B. Acceleration of various parts

C. Displacement of various parts

D. Angular acceleration of various parts

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The direction of Coriolis component of acceleration is the direction

A. Of relative velocity vector for the two coincident points rotated by 90° in the direction of the angular velocity of the rotation of the link

B. Along the centripetal acceleration

C. Along tangential acceleration

D. Along perpendicular to angular velocity

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

A. (1/2). μ W cosecα (r₁ + r₂)

B. (2/3). μ W cosecα (r₁ + r₂)

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

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

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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 is _________ when the crank OC and connecting rod PC are at right angles to each other.

A. Infinity

B. Zero

C. Any +ve value

D. Any -ve value

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A cam with a roller follower would constitute following type of pair

A. Lower pair

B. Higher pair

C. Open pair

D. Close pair

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If some links are connected such that motion between them can take place in more than one direction, it is called

A. Incompletely constrained motion

B. Partially constrained motion

C. Completely constrained motion

D. Successfully constrained motion

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The primary unbalanced force due to inertia of reciprocating parts in a reciprocating engine is given by (where m = Mass of reciprocating parts, ω = Angular speed of crank, r = Radius of crank, θ = Angle of inclination of crank with the line of stroke, and n = Ratio of the length of connecting rod to radius of crank)

A. m.ω².r sinθ

B. m.ω².r cosθ

C. m.ω².r (sin 2θ/n)

D. m.ω².r (cos 2θ/n)

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When two links are connected by a pin joint, their instantaneous centre lies

A. On their point of contact

B. At the centre of curvature

C. At the centre of circle

D. At the pin joint

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The mechanism forms a structure, when the number of degrees of freedom (n) is equal to

A. 0

B. 1

C. 2

D. -1

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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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In order to double the period of a simple pendulum, the length of the string should be

A. Halved

B. Doubled

C. Quadrupled

D. None of these

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A pantograph is a mechanism with

A. Lower pairs

B. Higher pairs

C. Rolling pairs

D. Turning pairs

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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

A. Four times the first one

B. Same as the first one

C. One fourth of the first one

D. One and a half times the first one

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The ratio of the number of teeth to the pitch circle diameter in millimetres, is called

A. Circular pitch

B. Diametral pitch

C. Module

D. None of these

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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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Coriolis component is encountered in

A. Quick return mechanism of shaper

B. Four bar chain mechanism

C. Slider crank mechanism

D. Both (A) and (C) above

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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

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Which of the following is a higher pair?

A. Belt and pulley

B. Turning pair

C. Screw pair

D. Sliding pair

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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

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Which of the following is an example of sliding pair?

A. Piston and cylinder of a reciprocating steam engine

B. Shaft with collars at both ends fitted into a circular hole

C. Lead screw of a lathe with nut

D. Ball and a socket joint

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Which of the following mechanism is obtained from lower pair?

A. Gyroscope

B. Pantograph

C. Valve and valve gears

D. All of the above

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In a ball bearing, ball and bearing forms a

A. Turning pair

B. Rolling pair

C. Screw pair

D. Spherical pair

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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

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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

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One end of a helical spring is fixed while the other end carries the load W which moves with simple harmonic motion. The frequency of motion is given by (where δ = Deflection of the spring)

A. 2π. √(g/δ)

B. 1/2π. √(g/δ)

C. 2π. √(δ/g)

D. 1/2π. √(δ/g)

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A disc is a spinning with an angular velocity ω rad/s about the axis of spin. The couple applied to the disc causing precession will be (where I = Mass moment of inertia of the disc, and ωP = Angular velocity of precession of the axis of spin)

A. (1/2).Iω²

B. Iω²

C. (1/2). I ω ω_P

D. I ω ω_P

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Under logarithmic decrement, the amplitude of successive vibrations are

A. Constant

B. In arithmetic progression

C. In geometric progression

D. In logarithmic progression

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A motor car moving at a certain speed takes a left turn in a curved path. If the engine rotates in the same direction as that of wheels, men due to centrifugal forc

A. The reaction on me inner wheels increases and on the outer wheels decreases

B. The reaction on the outer wheels increases and on the inner wheels decreases

C. The reaction on the front wheels increases and on the rear wheels decreases

D. The reaction on the rear wheels increases and on the front wheels decreases

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Open pairs are those which have

A. Point or line contact between the two elements when in motion

B. Surface contact between the two elements when in motion

C. Elements of pairs not held together mechanically

D. Two elements that permit relative motion

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The transmissibility, for all values of damping factor, will be less than unity, if ω/ω_n is

A. Equal to 1

B. Less than 2

C. Equal to 2

D. Greater than 2

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The swaying couple is maximum or minimum when the angle of inclination of the crank to the line of stroke (θ) is equal to

A. 90° and 180°

B. 45° and 225°

C. 180° and 270°

D. 270° and 360°

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Accepted Answer

B. Acceleration of various parts

Klein's construction is useful to determine

Correct Answer :

Show all Theory of Machines MCQ

Related Questions

The direction of Coriolis component of acceleration is the direction

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

A cam with a roller follower would constitute following type of pair

If some links are connected such that motion between them can take place in more than one direction, it is called

When two links are connected by a pin joint, their instantaneous centre lies

The mechanism forms a structure, when the number of degrees of freedom (n) is equal to

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

In order to double the period of a simple pendulum, the length of the string should be

A pantograph is a mechanism with

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

The ratio of the number of teeth to the pitch circle diameter in millimetres, is called

Which of the following is a pendulum type governor?

Coriolis component is encountered in

The contact ratio is given by

Which of the following is a higher pair?

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

Which of the following is an example of sliding pair?

Which of the following mechanism is obtained from lower pair?

In a ball bearing, ball and bearing forms a

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

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

One end of a helical spring is fixed while the other end carries the load W which moves with simple harmonic motion. The frequency of motion is given by (where δ = Deflection of the spring)

A disc is a spinning with an angular velocity ω rad/s about the axis of spin. The couple applied to the disc causing precession will be (where I = Mass moment of inertia of the disc, and ωP = Angular velocity of precession of the axis of spin)

Under logarithmic decrement, the amplitude of successive vibrations are

A motor car moving at a certain speed takes a left turn in a curved path. If the engine rotates in the same direction as that of wheels, men due to centrifugal forc

Open pairs are those which have

The transmissibility, for all values of damping factor, will be less than unity, if ω/ω_n is

The swaying couple is maximum or minimum when the angle of inclination of the crank to the line of stroke (θ) is equal to

Also checkout

Klein's construction is useful to determine

Correct Answer :

Show all Theory of Machines MCQ

Related Questions

The direction of Coriolis component of acceleration is the direction

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

A cam with a roller follower would constitute following type of pair

If some links are connected such that motion between them can take place in more than one direction, it is called

When two links are connected by a pin joint, their instantaneous centre lies

The mechanism forms a structure, when the number of degrees of freedom (n) is equal to

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

In order to double the period of a simple pendulum, the length of the string should be

A pantograph is a mechanism with

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

The ratio of the number of teeth to the pitch circle diameter in millimetres, is called

Which of the following is a pendulum type governor?

Coriolis component is encountered in

The contact ratio is given by

Which of the following is a higher pair?

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

Which of the following is an example of sliding pair?

Which of the following mechanism is obtained from lower pair?

In a ball bearing, ball and bearing forms a

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

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

One end of a helical spring is fixed while the other end carries the load W which moves with simple harmonic motion. The frequency of motion is given by (where δ = Deflection of the spring)

A disc is a spinning with an angular velocity ω rad/s about the axis of spin. The couple applied to the disc causing precession will be (where I = Mass moment of inertia of the disc, and ωP = Angular velocity of precession of the axis of spin)

Under logarithmic decrement, the amplitude of successive vibrations are

A motor car moving at a certain speed takes a left turn in a curved path. If the engine rotates in the same direction as that of wheels, men due to centrifugal forc

Open pairs are those which have

The transmissibility, for all values of damping factor, will be less than unity, if ω/ωn is

The swaying couple is maximum or minimum when the angle of inclination of the crank to the line of stroke (θ) is equal to

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The transmissibility, for all values of damping factor, will be less than unity, if ω/ω_n is