Q.

The constant velocity ratio is achieved in a double Hooke’s joint when

A. Driving and driven shafts make equal but opposite angle with the intermediate shaft and forks of intermediate shaft lie in the same plane

B. Driving and driven shafts make equal but opposite angle with the intermediate shaft and forks of intermediate shaft lie in the orthogonal plane

C. Driving and driven shafts make equal angle with the intermediate shaft and forks of intermediate shaft lie in the same plane

D. Driving and driven shafts make equal angle with the intermediate shaft and forks of intermediate shaft lie in the orthogon

Answer & Explanation

The constant velocity ratio is achieved in a double Hooke’s joint when \"driving and driven shafts make equal angle with the intermediate shaft and forks of intermediate shaft lie in the same plane\".

Thus correct option is: C.

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Q.

If driving and driven shafts make equal angle with the intermediate shaft and forks of intermediate shaft lie in orthogonal planes, then maximum and minimum ratio of speeds of the shafts (ω2/ω1) is given by

A. Cosα, 1/cosα

B. 1/cosα, cosα

C. Cos2α, 1/cos2α

D. 1/cos2α, cos2α

Answer & Explanation

Q.

A body in motion will be subjected to Coriolis acceleration when that body is

A. In plane rotation with variable velocity

B. In plane transition with variable velocity

C. In plane motion which is a resultant of plane translation and rotation

D. Restrained to rotate while sliding over another body

Answer & Explanation

Q.

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

A. The center of the disc

B. An infinite distance on the plane surface

C. The point of contact

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

Answer & Explanation

Q.

In order to draw the acceleration diagram, it is necessary to determine the Coriolis component of acceleration in the case of

A. Crank and slotted lever quick return mechanism

B. Slider crank mechanism

C. Four bar mechanism

D. Pantograph

Answer & Explanation

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The constant velocity ratio is achieved in a double Hooke’s joint when

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The constant velocity ratio is achieved in a double Hooke’s joint when

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More Questions Theory of Machines:

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If driving and driven shafts make equal angle with the intermediate shaft and forks of intermediate shaft lie in orthogonal planes, then maximum and minimum ratio of speeds of the shafts (ω2/ω1) is given by

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