Rectangular bar in a rectangular hole is the following type of pair__________________?
(A) completely constrained motion
(B) partially constrained motion
(C) incompletely constrained motion
(D) freely constrained motion
(D) none of the above
Elements of pairs held together mechanically is known as ___________________?
(A) closed pair
(B) open pair
(C) mechanical pair
(D) rolling pair
(D) none of the above
A mechanism is an assemblage of ____________________?
(A) two links
(B) three links
(C) four links or more than four links
(D) all of the above
(D) none of the above
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
(D) none of the above
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
(D) none of the above
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
(D) none of thfr above
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
(D) Oldham’s coupling
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
(D) American coupling
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
(D) it increases shaft life
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
(D) none of the above