1000+ GATE Mechanical Previous Year Papers with Solutions Pdf - 1

Question: 1

The emission of oxides of nitrogen in automobile exhaust will be least when the vehicle is

(A) accelerating

(B) cruising at high speed

(C) cruising at low speed

(D) idling

Question: 2

Sulphur dioxide can be measured by

(A) permeation tube calibration

(B) ultraviolet pulsed fluorescence

(C) flame photography

(D) any of the above

Question: 3

Which of the following fuel has maximum resistance to detonation?

(A) benzene

(B) iso-octane

(C) toulene

(D) n-heptane

Question: 4

Which of the following is an artificial source of energy?

(A) electricity

(B) wood

(C) coal

(D) sun

Question: 5

The presence of which of the following material in water is not considered to be dangerous?

(A) calcium

(B) mercury

(C) copper

(D) lead