521. In elliptical trammels_________________?
A. all four pairs are turning
B. three pairs turning and one pair sliding
C. two pairs turning and two pairs sliding
D. one pair turning and three pairs sliding
E. all four pairs sliding

522. The Hooke’s joint consists of ____________________?
A. two forks
B. one fork
C. three forks
D. four forks
E. five forks

523. The e.g. of a link in any mechanism would experience_________________?
A. no acceleration
B. linear acceleration
C. angular acceleration
D. both angular and linear accelerations
E. none of the above

524. Flexible coupling is used because _____________________?
A. it is easy to disassemble
B. it is easy to engage and disengage
C. it transmits shocks gradually
D. it prevents shock transmission and eliminates stress reversals
E. it increases shaft life

525. The type of coupling used to join two shafts whose axes are neither in same straight line nor parallel, but intersect is______________________?
A. flexible coupling
B. universal coupling
C. chain coupling
D. Oldham’s coupling
E. American coupling

526. the chain is constrained when_________________?
A. L.H.S. = R.H.S.
B. L.H.S. R.H.S.
D. there is no such criterion for checking above requirement
E. none of the above

527. In automobiles the power is transmitted from gear box to differential through _________________?
A. bevel gear
B. universal joint
C. Hooke’s joint
D. Knuckle joint
E. Oldham’s coupling

528. The Ackermann steering mechanism is preferred to the Davis type in automobiles because____________________?
A. the former is mathematically accurate
B. the former is having turning pair
C. the former is most economical
D. the former is most rigid
E. none of thfr above

529. When a ship travels in a sea, which of the effect is more dangerous___________________?
A. steering
B. pitching
C. rolling
D. all of the above
E. none of the above

530. In gramophones for adjusting the speed of the turntable, the following type of governor is commonly employed_______________?
A. Hartung governor
B. Wilson Hartnell governor
C. Pickering governor
D. Inertia governor

NOTE
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PLEASE COMMENT WITH CORRECT ANSWER AND ITS DETAIL EXPLANATION IN COMMENT BOX.
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