Equal to velocity ratio of a gear train

Reciprocal of velocity ratio of a gear train

Always greater than unity

Always less than unity

B. Reciprocal of velocity ratio of a gear train

Angle of friction

Angle of repose

Angle of projection

None of these

0° and 90°

0° and 180°

90° and 180°

180° and 360°

1-3 m/s

3-15 m/s

15-30 m/s

30-50 m/s

Flexible coupling

Universal coupling

Chain coupling

Oldham's coupling

One direction only

Two directions only

More than one direction

None of these

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

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

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

Moved by the cam from beginning of ascent to the termination of descent

Minimise the effect of primary forces

Minimise the effect of secondary forces

Have perfect balancing

To start the locomotive quickly

All points of the disc have the same velocity

The centre of the disc has zero acceleration

The centre of the disc has centrifugal acceleration

The point on the disc making contact with the plane surface has zero acceleration

Whitworth quick return mechanism

Elliptical trammels

Rotary engine

Universal joint

The centre of the disc

The point of contact

An infinite distance on the plane surface

The point on the circumference situated vertically opposite to the contact point

Turning pair

Rolling pair

Screw pair

Spherical pair

Will remain same

Will change

Could change or remain unaltered depending on which link is fixed

Will not occur

T/3

(T.g)/3

√(T/3m)

√(3m/T)

Simple

Compound

Binary

None of these

Lower pair

Higher pair

Open pair

Close pair

Two forks

One fork

Three forks

Four forks

Positive throughout

Negative throughout

Positive during major portion of the stroke

Negative during major portion of the stroke

(r₁ - r₂) (1 - cosθ)

(r₁ + r₂) (1 + cosθ)

(r₁ - r₂) [(1 - cosθ)/cos θ]

(r₁ + r₂) [(1 - cosθ)/cos θ]

(S₁ + S₂)/h

(S₁ - S₂)/h

(S₁ + S₂)/2h

(S₁ - S₂)/2h

P = W tan(α - φ)

P = W tan(α + φ)

P = W tan(φ - α)

P = W cos(α + φ)

Circular pitch

Diametral pitch

Module

None of these

Tension on tight side of belt

Tension on slack side of belt

Radius of pulley

All of the above

90° and 180°

45° and 225°

180° and 270°

270° and 360°

(r₁ + r₂) (y/x)

(r₁ + r₂) (x/y)

(r₁ - r₂) (y/x)

(r₁ - r₂) (x/y)

W sinθ

W cosθ

W tanθ

W cosecθ

No node

One node

Two nodes

Three nodes

Increases power transmitted

Decreases power transmitted

Have no effect on power transmitted

Increases power transmitted upto a certain speed and then decreases

Point contact

Surface contact

No contact

None of the above

45° in the direction of rotation of the link containing the path

45° in the direction opposite to the rotation of the link containing the path

90° in the direction of rotation of the link containing the path

180° in the direction opposite to the rotation of the link containing the path

Radial component

Tangential component

Coriolis component

None of these