Olympiad Test: Combustion And Flame - 2
15 Questions MCQ Test Science Olympiad Class 8 | Olympiad Test: Combustion And Flame - 2
The resulting products in the case of incomplete combustion of methane due to insufficient supply of oxygen are
For combustion to take place, we need
Three things are required in proper combination before ignition and combustion can take place---Heat, Oxygen and Fuel.
- There must be Fuel to burn.
- There must be Air to supply oxygen.
- There must be Heat (ignition temperature) to start and continue the combustion process.
To extinguish a flame, which of these methods is used?
The combustion in which a material bursts into flames without the application of heat is called
Which of these material represents spontaneous combustion?
Which of these is a solid pollutant?
SPM, also called dangerous pollutants, means
The coldest zone of flame is –––– zone.
In which zone is carbon monoxide burns with a blue colour at the base of the wick?
Blue zone: This is due to the combustion of incompletely combusted carbon-monoxide.
The SI unit of calorific value is
The calorific value of petrol is
The calorific value of diesel fuel is roughly 45.5 MJ/kg (megajoules per kilogram), slightly lower than petrol which is 45.8 MJ/kg.
A fuel is considered good if it
Burning of magnesium is an example of which combustion?
The most commonly used fire extinguisher is soda-acid fire extinguisher. Cylinder is filled with a solution of
Which of these is gaseous fuel?
 |
Use Code STAYHOME200 and get INR 200 additional OFF
|
Use Coupon Code |
Recommended Content
 |
|
 |
|
 |
|
 |
|
 |
|
Recommended Tests
 |
|
|
|
|
|
|
|
|
|
Download free EduRev App
Similar Content
 |
|
 |
|
|
|
|
|
Related tests
|
|
|
|
|
|
|
|
|
|
|
© EduRev
|
Follow Us
|