15- During braking, the brake shoe is moved to force the lining against the
(A) wheel rim or axle
(B) Brake drum
(C) Anchor pin
(D) Wheel piston or the cylinder
16- Camber angle plus steering axis angle is called the
(A) Toe-out
(B) Point of intersection
(C) Included angle
(D) Caster
17- The firing order is the order in which
(A) pistons are arranged
(B) the spark plugs are operated
(C) the cylinders are numbered
(D) none of the above
18- The purpose of cooling system is to
(A) Keep the engine running at its most efficient operating temperature
(B) Prevent the coolant from freezing
(C) Prevent the coolant from boiling
(D) All of the above
19- Lean air mixture is required for
(A) idling
(B) cruising
(C) starting
(D) all of the above
20- In an overdrive, the component of planetary gear train, which is to be fixed
(A) Annulus
(B) Planetary carrier
(C) Sun gear
(D) Any of the above
21- Transfer box is used in-between
(A) Differential and rear axle
(B) Propeller shaft and differential
(C) Main gear box and propeller shaft
(D) None of the above
22- Auxiliary gear box is provided in
(A) Four wheel drive
(B) Two wheel drive
(C) Light duty vehicle
(D) Heavy duty vehicle
23- Aspect ratio of a tire section is given by
(A) Height of the tire / Weight of tire
(B) Width of tire x (height of tire / weight of tire)
(C) Height of section / width of tire section
(D) Width of section / height of the tire section
24- The additive used in enhancing the cetane rating of diesel oil is
(A) Octyl nitrate
(B) Primary amyl nitrate
(C) Iso propyl nitrate
(D) All of the above
25- The self-ignition temperature of diesel oil as compared to petrol is
(A) Unpredictable
(B) Fluctuating
(C) Lower
(D) Higher
26- Welding process used for fabrication of car bodies
(A) Soldering
(B) Brazing
(C) Resistance welding
(D) Arc welding
27- Insulating material used in spark plug
(A) Polystyrene
(B) Mica
(C) Porcelain
(D) Rubber
28- The engine vacuum brakes are generally used in
(A) trains
(B) tractors
(C) jeeps
(D) buses
ANSWERS:
15-(B), 16-(C), 17-(B), 18-(A), 19-(B), 20-(C), 21-(C), 22-(D), 23-(C), 24-(D), 25-(C), 26-(C), 27-(C), 28-(A)