Automobile Engineering Multiple Choice Questions
1-The process in which hydrocarbons and decomposed into smaller hydrocarbons is called
(A) Isomerization
(B) Evaporation
(C) Cracking
(D) Reforming
2-Four strokes of an IC engine need ___ degrees of Crank rotation.
(A) 180°
(B) 360°
(C) 540°
(D) 720°
3-The method of governing used in petrol engines is
(A) quantitative governing
(B) hit and mass governing
(C) combined governing
(D) qualitative governing
4-The power available at the Crankshaft for useful work is
(A) Brake power
(B) Indicated power
(C) Total power
(D) Friction power
5-Normal heptane
(A) helps to resist auto ignition
(B) accelerates auto ignition
(C) retards auto ignition
(D) does not affect auto ignition
6-A square engine
(A) has two cylinders horizontal and two cylinders vertical
(B) has four cylinders
(C) has cylinders arranged in square shape
(D) has cylinder bore equal to stroke length
7-The thermal efficiency of a two stroke cycle engine as compared to a four stroke cycle engine is
(A) same
(B) more
(C) less
(D) more up to certain load and then less
8-The friction that occurs between the layers of oil is called
(A) solid friction
(B) greasy friction
(C) viscous friction
(D) boundary friction
9-which of the following are correct pair pistons for a 6 cylinder in line engine
(A) 1-4, 2-6, 3-5
(B) 1-5, 4-6, 2-3
(C) 1-6, 2-5, 3-4
(D) 1-2, 3-4, 5-6
10-Correct sequence of coolant circulation in an IC Engine cooling system is
(A) pump – head – radiator – block
(B) pump – radiator – head – block
(C) pump – block – head – radiator
(D) pump – block – radiator – head
ANSWERS:
1-(C), 2-(D), 3-(A), 4-(A), 5-(B), 6-(D), 7-(C), 8-(D), 9-(A), 10-(B)