- (A) CO2 : 6.26, CO : 1.56, O2 : 3.91, H2O :15.66, N2 : 72.60
- (B) CO2 : 7.42, CO : 1.86, O2 : 4.64, N2:86.02
- (C) CO2 : 6.39, CO : 1.60, O2 : 3.99, H2O:25.96, N2:72.06
- (D) CO2 : 7.60, CO : 1.90, O2 : 4.75, N2 : 85.74
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) Preheating of fuel gases & combustion air
- (B) Reducing sulphur content in the fuel
- (C) Adopting proper fuel firing technique & fuel preparation
- (D) Supplying correct amount of combustion air
- (A) 50
- (B) 1000
- (C) 5000
- (D) 10000
- (A) H2
- (B) CH4
- (C) CO
- (D) None of these
- (A) 21% excess air has been used for combustion
- (B) 21% excess oxygen has been used for combustion
- (C) Complete combustion of fuel has taken place
- (D) No excess air has been used for combustion
- (A) 5
- (B) 15
- (C) 25
- (D) 50
- (A) 3-5
- (B) 25-30
- (C) 60-65
- (D) 95-100
- (A) H2
- (B) CO
- (C) CH4
- (D) C2H6
- (A) 1800
- (B) 800
- (C) 4500
- (D) 10000
- (A) 20
- (B) 35
- (C) 55
- (D) 80

