1000+ Chemical Engineering Online Test - 1

Question: 1

Which of the following materials has the poorest electrical conductivity?

(A) aluminium

(B) carbon

(C) stainless steel

(D) silver

Ans: A

aluminium

Question: 2

The gas which is the cause of explosion in coal mines is

(A) acetylene

(B) ethylene

(C) ethane

(D) methane

Ans: D

methane

Question: 3

Which of the following metals is the most prone to working hardening?

(A) aluminium

(B) lead

(C) copper

(D) brass

Ans: B

lead

Question: 4

Fog is an example of colloidal system of

(A) gas dispersed in liquid

(B) liquid dispersed in gas

(C) solid dispersed in liquid

(D) solid dispersed in gas

Ans: D

solid dispersed in gas

Question: 5

Machine tool bodies are usually made of

(A) copper alloys

(B) cast iron

(C) wrought iron

(D) mild steel

Ans: A

copper alloys

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