41-Diaphragm type mechanical fuel pump is driven by

(A) V-belt

(B) Chain

(C) Camshaft eccentric

(D) Cooling fan

42-Which of the following compound is added to petrol to improve its anti knocking property?

(A) Sodium bicarbonate

(B) Calcium bicarbonate

(C) Potassium nitrate

(D) Tetra ethyl lead

43-The size of flywheel used in single cylinder 4-stroke engine compared to a flywheel of the single cylinder 2-stroke engine of same capacity is

(A) Larger

(B) Smaller

(C) Same

(D) None of the above

44-The number of crank pin in the crank shaft of a V-type engine is:

(A) Equal to number of cylinder

(B) Equal to double the number of cylinder

(C) Equal to half of number of cylinder

(D) None of the above

45-If the single cylinder produces a power in each rotation of crank shaft, then the engine is a:

(A) 4-stroke engine

(B) 2-stroke engine

(C) Wankel engine

(D) All of the above

46-Variable steering ratio can be achieved in case of

(A) Worm and sector

(B) Worm and nut

(C) Rack and pinion

(D) Worm and roller

47-The pollutant that is formed at higher combustion temperature is

(A) CO

(B) HC

(C) NO₂

(D) H₂O

48-Which gear will not revolve when the vehicle is moving on straight path?

(A) Planetary gear

(B) Sun gear

(C) Crown wheel

(D) Pinion

49-The type of body movement of a vehicle in which the vehicle turn on its own longitudinal axis is:

(A) Pitching

(B) Bouncing

(C) Yawing

(D) Rolling

50-In a tyre, it is designated as ‘P200/75 R16’. What is the digit 200?

(A) Section width

(B) Section height

(C) Rim diameter

(D) Aspect ratio

ANSWERS:

41-(C), 42-(D), 43-(A), 44-(C), 45-(B), 46-(C), 47-(C), 48-(A), 49-(D), 50-(A)