0.25

0.5

1

2

D. 2

At the instantaneous center of rotation, one rigid link rotates instantaneously relative to another for the configuration of mechanism considered

The two rigid links have no linear velocities relative to each other at the instantaneous centre

The two rigid links which have no linear velocity relative to each other at this center have the same linear velocity to the third rigid link

The double centre can be denoted either by O2 or O12, but proper selection should be made

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

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

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

l = j + 4

sin (θ + φ) + 1/ cos (θ - φ) + 1

cos (θ - φ) + 1/ sin (θ + φ) + 1

cos (θ + φ) + 1/ cos (θ - φ) + 1

cos (θ - φ) + 1/ cos (θ + φ) + 1

Is a simplified version of instantaneous centre method

Utilises a quadrilateral similar to the diagram of mechanism for reciprocating engine

Enables determination of coriolis component

Is based on the acceleration diagram

Parallel to the link joining the points

Perpendicular to the link joining the points

At 45° to the link joining the points

None of the above

Tractive force

Swaying couple

Hammer blow

None of these

Weak material of the belt

Weak material of the pulley

Uneven extensions and contractions of the belt when it passes from tight side to slack side

Expansion of the belt

Sliding pair

Rolling pair

Surface pair

Higher pair

r sinφ

r cosφ

r tanφ

(r/2) cosφ

Greater than

Less than

Equal to

None of these

Perpendicular to its axis

Parallel to its axis

In a circle about its axis

None of these

(1/2) μ W (r₁ + r₂)

(2/3) μ W (r₁ + r₂)

(1/2) μ W [(r₁³ - r₂³)/(r₁² - r₂²)]

(2/3) μ W [(r₁³ - r₂³)/(r₁² - r₂²)]

m.ω².r cosθ

c.m.ω².r sinθ

(1 - c).m.ω².r (cosθ - sinθ)

m.ω².r (cosθ - sinθ)

Dead weight governor

Pendulum type governor

Spring loaded governor

Inertia governor

(1/2).Iω²

Iω²

_{P}

_{P}

Eight links

Six links

Four links

Twelve links

_{p} /16

_{p} /4

_{p}

_{p}

Parallel to AB

Perpendicular to AB

Along AB

At 45° to AB

θ/2

θ

2θ

4θ

Oldham's coupling

Elliptical trammel

Scotch yoke mechanism

All of these

Thompson indicator

Richard indicator

Simplex indicator

Thomson indicator

Increases

Decreases

Remain unaffected

First increases and then decreases

Radius of rotation of balls increases as the equilibrium speed decreases

Radius of rotation of balls decreases as the equilibrium speed decreases

Radius of rotation of balls increases as the equilibrium speed increases

Radius of rotation of balls decreases as the equilibrium speed increases

π (r₁ + r₂) + (r₁ + r₂)²/x + 2x

π (r₁ + r₂) + (r₁ - r₂)²/x + 2x

π (r₁ - r₂) + (r₁ - r₂)²/x + 2x

π (r₁ - r₂) + (r₁ + r₂)²/x + 2x

Four bar linkage

6 bar linkage

8 bar linkage

3 bar linkage

Dynamically balanced

Statically balanced

Statically and dynamically balanced

Not balanced

Cylindrical pair

Turning pair

Rolling pair

Sliding pair

Journal bearing

Ball and Socket joint

Leave screw and nut

None of the above

1/2π × √(s/m)

1/2π × √(g/δ)

0.4985/√δ

Any one of these

10° to 20°

20° to 30°

30° to 40°

60° to 80°