Gas Combustion

Question 1

What are the danger signs of incomplete combustion on appliances?

Answer 1

Stains on the appliance or around room, Excessive yellow or orange flames, Soot deposit and unstable combustion

Question 2

What % is carbon monoxide fatal at in the atmosphere?

Answer 2

0.4%

Question 3

Causes of carbon monoxide?

Answer 3

Lack of oxygen ( Lack of primary air, Insufficient ventilation)
Flame chilling (Debry on burner, Flame touching Heat Exchanger)
Incorrect flueing

Question 4

What is the difference between Post Aerated combustion and Pre Aerated combustion?

Answer 4

Post Aerated - Air is supplied as gas leaves the burner where as in Pre Aerated gas in provided before

Question 5

What are the symptoms of carbon monoxide poisoning?

Answer 5

Drowsiness, Dizziness, Headaches, Watering eyes, Palpitations

Question 6

What is the flammability limit of Propane?

Answer 6

LEL (Lower explosive limit) 2%
UEL (Upper explosive limit) 10%

Question 7

What is the flammability limit of Natural gas?

Answer 7

LEL (Lower explosive limit) 5%
UEL (Upper explosive limit) 15%

Question 8

What are the by-products created from complete combustion?

Answer 8

Carbon dioxide (C02) and Water vapor(H20)