A. for changing the direction of motion of the belt
B. for applying tension
C. for increasing -velocity ratio
D. all of the above
E. none of the above
Related Mcqs:
- Pulley in a belt drive acts as_______________?
A. cylindrical pair
B. turning pair
C. rolling pair
D. sliding pair
E. surface pair - The moment on the pulley which produces rotation is called ___________________?
A. inertia
B. momentum
C. moment of momentum
D. work
E. torque - Sense of tangential acceleration of a link_________________?
A. is same as that of velocity
B. is opposite to that of velocity
C. could be either same or opposite to velocity
D. is perpendicular to that of velocity
E. none of the above - The purpose of a link is to________________?
A. transmit motion
B. guide other links
C. act as a support
D. all of the above
E. none of the above - With single Hooke’s joint it is possible to connect two shafts, the axes of which have an angular misalignment up to ________________?
A. 10°
B. 20°
C. 30°
D. 40°
E. 60°. - In multi-V-belt transmission, if one of the belt is broken, we have to change the_________________?
A. broken belt
B. broken belt and its adjacent belts
C. all the belts
D. there is no need of changing any one as remaining belts can take care of transmission of load
E. all the weak belts - A typewriter mechanism has 7 number of binary joints, six links and none of higher pairs. The mechanism is________________?
A. kinematically sound
B. not sound
C. soundness would depend upon which link is kept fixed
D. data is not sufficient to determine same
E. none of the above - Cam angle is defined as the angle_________________?
A. during which the follower returns to its initial position
B. of rotation of the cam for a definite displacement of the follower
C. through which, the cam rotates during the period in which the follower remains in the highest position
D. moved by the cam from the instant the follower begins to rise, till it reaches its highest position
E. moved by the can from beginning of i ascent to the termination of descent - The number of centers in a crank driven slider crank mechanism are_______________?
A. 0
B. 2
C. 4
D. 6
E. may be any number depending upon position of mechanism - The main disadvantage of the sliding pair is that it is_________________?
A. bulky
B. wears rapidly
C. difficult to manufacture
D. A. and B. above
E. A. and C. above
