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

Instantaneous center of rotation of a link in a four bar mechanism lies on

A

right side pivot of this link

B

left side pivot of this link

C

a point obtained by intersection on extending adjoining links

D

none of the mentioned

The number of links and instantaneous centers in a reciprocating engine mechanism are

A

4,4

B

4,5

C

5,4

D

4,6

The total number of instantaneous centers for a mechanism consisting of n links are

A

$$\frac{{\text{n}}}{2}$$

B

n

C

n - 1

D

$$\frac{{{\text{n}}\left( {{\text{n}} - 1} \right)}}{2}$$

Total no of instantaneous centers of a machine having ‘n’ links, is

A

$$\frac{{\text{n}}}{2}$$

B

n

C

(n - 1)

D

$$\frac{{{\text{n}}\left( {{\text{n}} - 1} \right)}}{2}$$

When a slider moves on a fixed link having curved surface, 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

If the opposite links of a four bar linkage are equal, the links will always form a

A

Triangle

B

Rectangle

C

Parallelogram

D

Pentagon

The instantaneous centre of a member lies at the point of intersection of two lines drawn at the ends of the member such that the lines are inclined to the direction of motion of the ends at

A

30°

B

45°

C

60°

D

90°

As per the Indian boiler regulation (IBR), the type of joint preferred for the circumferential joint is the __________ joint.

A

Butt

B

Lap

C

Welded

D

None of these

Which of the following property of the instantaneous center is correct?

A

A rigid link rotates instantaneously relative to another link at the instantaneous centre for the configuration of the mechanism considered.

B

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

C

The velocity of the instantaneous centre relative to any third link is same whether the instantaneous centre is regarded as a point on the first link or on the second rigid link.

D

all of the mentioned

The instantaneous center of a rigid thin disc rolling on a plane rigid surface is located at

A

the centre of the disc

B

the point of contact

C

an infinite distance on the plane surface

D

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

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

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