According to Kennedy's theorem, if three bodies have plane motions, their instantaneous centers lie on

According to Kennedy's theorem, if three bodies move relatively to each other, their instantaneous centers will lie on a

A

Straight line

B

Parabolic curve

C

Triangle

D

Rectangle

In a mechanism, the fixed instantaneous centers are those centers which

A

Remain in the same place for all configurations of the mechanism

B

Vary with the configuration of the mechanism

C

Moves as the mechanism moves, but joints are of permanent nature

D

None of the above

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 instantaneous centers which vary with the configuration of mechanism are called

A

Permanent instantaneous centers

B

Fixed instantaneous centers

C

Neither fixed nor permanent instantaneous centers

D

None of the above

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

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

What is the number of instantaneous centers for an eight link mechanism?

A

15

B

28

C

30

D

8

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

A

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

B

n

C

(n - 1)

D

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

Plane P take off at 2:00 am and flies at a constants speed of Xmph. Plane Q takes off at 3:30 am and flies the same forte as plane p but travels at a constant X, how many hours after 3:30 am will plane Q overtake plan P?

A

1.5x/y +0.5

B

2

C

4

D

5

Newton's law of Collision of elastic bodies states that when two moving bodies collide each other, their velocity of separation

A

Is directly proportional to their velocity of approach

B

Is inversely proportional to their velocity of approach

C

Bears a constant ratio to their velocity of approach

D

Is equal to the sum of their velocities of approach

To tell a lie is great sin. We_die than tell a lie.

A

have hetter

B

would rather

C

should

D

have to

According to Kennedy's theorem, if three bodies have plane motions, their instantaneous centers lie on

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