Question 1 How many zones are there in a flame? Question 2 Which zone of candle is the hottest? Question 3 Which zone of candle is the coldest? Question 4 What is the colour of inner most flame? Question 5 What is the colour of outer most flame? Question 6 Name the various zones of candle flame? Question 7 In which zone partial combustion of fuel take … [Read more...] about Structure of Flame
Class 8
Flame
Question 1 what is a flame? Question 2 What type of substances, on burning give a flame? Question 3 Name few substances which produces flame? Question 4 What happen when magnesium ribbon is burnt? Question 5 Charcoal does not burn by producing a flame.Why? Question 6 How luminous flame is produced? Question 7 How non-luminous flame is produced? Question 8 … [Read more...] about Flame
Fire control
Question 1 Name the most common fire extinguisher? Question 2 Which fire extinguisher is used for fires involving electrical equipments and inflammable materials? Question 3 What is fire fighting? Question 4 Why are fire produced by burning oil and petrol cannot be extinguished by using water? Question 5 Why fires caused by the electrical short circuit in an … [Read more...] about Fire control
Fuels
Question 1 Name the unit in which calorific value of a fuel is expressed? Question 2 Name few solid fuels? Question 3 Name few liquid fuels? Question 4 Name few gaseous fuels? Question 5 Define the term calorific value of fuels? Question 6 What are the characteristics of ideal fuel? Question 7 The calorific value of LPG is 55000 KJ/Kg.What does it mean? A … [Read more...] about Fuels
Types of Combustion
Question 1 What is meant by rapid combustion. Give example? Question 2 What is meant by spontaneous combustion. Give example? Question 3 What is explosive combustion. Give example? Types of Combustion The three important types of combustion are: 1) Rapid combustion 2) Spontaneous combustion 3) Explosive combustion Rapid Combustion The combustion reaction in … [Read more...] about Types of Combustion