- (A) CO2, O2, CO
- (B) CO, O2, CO2
- (C) CO2, CO, O2
- (D) O2, CO2, CO
Exam preparation MCQs with answers
Practice Pakistan's most useful MCQs for competitive exams
Prepare for NTS, PPSC, FPSC and subject-wise tests with fresh multiple choice questions, clear options and quick answer reveal.
Latest MCQs
- (A) Caking index
- (B) Yield of carbonised products
- (C) Friability & oxygen content
- (D) Calorific value
- (A) Reactivity
- (B) Hardness
- (C) Strength
- (D) None of these
- (A) Burns completely
- (B) Gives smokeless burning
- (C) Shows little or no fusing action
- (D) None of these
- (A) Contains more volatile matter than bituminous coal
- (B) Ignites more easily than bituminous coal
- (C) Is essentially a coking coal
- (D) Burns with short, bluish, yellow-tipped flame producing very little smoke
- (A) Fully
- (B) Partially
- (C) Not at all
- (D) Negligibly
- (A) Bright
- (B) Splint
- (C) Non-banded
- (D) Boghead
- (A) Pneumatically convey the pulverised coal
- (B) Completely burn the volatile matter
- (C) Burn the lumpy coal
- (D) None of these
- (A) 30
- (B) 65
- (C) 120
- (D) 180
- (A) Partial combustion of coal
- (B) Partial combustion of large size (< 50 mm) coke
- (C) High pressure gasification of coal (e.g. in Lurgi gasifier)
- (D) Atmospheric pressure gasification of coal (
- (E) g., in Kopper-Totzek gasifier)
