Kinematic pairs are those which have

1.  two elements held together mechanically

2.  two elements having relative motion

3.  two elements having Coroili's component

4.  minimum of two instantaneous centers

4

two elements having relative motion

Explanation :
No Explanation available for this question

A typewriter mechanism has 7 numbers of binary joints, six links and none of higher pairs. The mechanism is

1.  kinematic ally sound

2.  not sound

3.  soundness would depend upon which link is kept fixed

4.  data is not sufficient to determine same

4

kinematic ally sound

Explanation :
No Explanation available for this question

In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The distance between fixed pivots of crank and followers is

1.  95 mm

2.  slightly less than 95 mm

3.  slightly more than 95 mm

4.  45 mm

4

slightly less than 95 mm

Explanation :
No Explanation available for this question

The minimum length of the coupler will be

1.  45 mm

2.  slightly less than 45 mm

3.  slightly more than 45 mm

4.  95 mm

4

slightly more than 45 mm

Explanation :
No Explanation available for this question

In S.H.M., acceleration is proportional to

1.  velocity

2.  displacement

3.  rate of change of velocity

4.   all of the above

4

displacement

Explanation :
No Explanation available for this question

For simple harmonic motion of the of follower, a cosine curve represents

1.  displacement diagram

2.  velocity diagram

3.  acceleration diagram

4.  all of the above

4

acceleration diagram

Explanation :
No Explanation available for this question

A body having moment of inertia 0 kg m2 is rotating at 210 RPM and r with another body at rest having 40 kg m2. The resultant speed after will be

1.  90 RPM

2.  100 RPM

3.  80 RPM

4.  data are insufficient

4

90 RPM

Explanation :
No Explanation available for this question

Inertia force acts

1.  perpendicular to the accelerate force

2.  along the direction of accelerate force

3.  opposite to the direction of accelerate force

4.  in any direction w.r.t. accelerate force depending on the magnet too

4

opposite to the direction of accelerate force

Explanation :
No Explanation available for this question

The frequency of oscillation at compared to earth will be

1.  6 times more

2.  6 times less

3.  2.44 times more

4.  2.44 times less

4

2.44 times less

Explanation :
No Explanation available for this question

Angle of ascent of cam is defined as the angle

1.  during which the follower returns to its initial position

2.  of rotation of the cam for a definite displacement of the follower

3.  through which the cam rotates during the period in which the follower remains in highest position

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

4