7000+ Metallurgical Analysis MCQ Questions and Answers - 1

Question: 1

Ammonia present in coke oven gas is determined by passing its measured volume through the standard solution of

(A) Nitric acid and then weighing the precipitate

(B) Hydrochloric acid and then weighing the precipitate

(C) Sulphuric acid and then titrating it with alkali

(D) None of these

Question: 2

Temperature used in the determination of volatile matter of coal is _____ °C.

(A) 750

(B) 850

(C) 950

(D) 1050

Question: 3

Potassium hydroxide solution used as an absorbent in orsat apparatus is capable of absorbing

(A) H₂S

(B) SO₂

(C) CO₂

(D) All a, b and c

Question: 4

Fixed carbon of coal during its proximate analysis is determined by

(A) Subtracting the sum of percentage of volatile matter and ash of dry coal from 100

(B) Complete combustion of coal in oxygen

(C) Eschka process

(D) Kjeldahl process

Question: 5

Dean and stark apparatus is used in the determination of ____ content in liquid fuels.

(A) Ash

(B) Moisture

(C) Sulphur

(D) Sediment