1000+ Mechanical Engineering Objective Questions and Answers Pdf - 1

Question: 1

Which of the following industry will usually have the highest consumption of water for processing?

(A) automobile industry

(B) paper mill

(C) steel plant

(D) foundry

Question: 2

Which of the following chemical is least poisonous?

(A) sodium

(B) arsenic

(C) cyanide

(D) lead

Question: 3

Which fuel will have least air consumption per kg of fuel during consumption?

(A) spirit

(B) lubricating oil

(C) benzol

(D) gasoline

Question: 4

Which of the following gas has least proportion in atmospheric air?

(A) argon

(B) carbon dioxide

(C) helium

(D) neon

Question: 5

The presence of algae in water indicates that the water is

(A) acidic

(B) pure

(C) hard

(D) soft