Internal Combustion Engines (2161902) MCQ

MCQs of Fuels and its Supply System for SI and CI Engine

MCQ No - 1

Iso-octane C8H18 has an octane number of

(A) 0
(B) 50
(C) 100
(D) 120

C
MCQ No - 2

The normal heptane C7H14 is given a rating of __________ octane number.

(A) 0
(B) 50
(C) 100
(D) 120

A
MCQ No - 3

A mixture containing 65% of iso-octane and 35% of normal heptane will have

(A) cetane number 65
(B) octane number 65
(C) cetane number 35
(D) octane number 35

B
MCQ No - 4

The fuels in order of decreasing knock tendency for spark-ignition engines are

(A) paraffins, aromatics, napthenes
(B) paraffins, napthenes, aromatics
(C) napthenes, aromatics, paraffins
(D) napthenes, paraffins, aromatics

B
MCQ No - 5

The octane number of petrol, generally available, is

(A) 20 to 40
(B) 40 to 60
(C) 60 to 80
(D) 80 to 100

D