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31.

Ackermann steering gear consists of                        
A. sliding pairs B. turning pairs
C. rolling pairs D. higher pairs



32.

Any point on a link connecting double slider crank chain will trace a                        
A. straight line B. circle
C. ellipse D. parabola



33.

Creep in belt drive is due to                        
A. material of the pulley B. material of the belt
C. larger size of the driver pulley D. uneven extensions and contractions due to varying tension




34.

Crowning on pulleys helps                        
A. in increasing velocity ratio B. in decreasing the slip of the belt
C. for automatic adjustment of belt position so that belt runs centrally D. increase belt and pulley life



35.

Davis steering gear consists of                        
A. sliding pairs B. turning pairs
C. rolling pairs D. higher pairs



36.

Elements of pairs held together mechanically is known as                        
A. closed pair B. open pair
C. mechanical pair D. rolling pair



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