MEDIUM
10th CBSE
IMPORTANT
Earn 100

Arrange the following fuels in the order of increasing calorific values (keeping the fuel with lowest calorific value first):
LPG, Coal, Alcohol, Dung cakes, Diesel

Important Questions on Sources of Energy
EASY
10th CBSE
IMPORTANT
Most of the fuels contain carbon as one of the constituents. Name a fuel which has very high calorific value but does not contain carbon.
(Choose from Hydrogen, Nitrogen, Helium)

EASY
10th CBSE
IMPORTANT
Name the product that is used to drive a heavy vehicle. (Petrol/ Diesel)

EASY
10th CBSE
IMPORTANT
Give one example of a good domestic fuel.
(Liquefied petroleum gas/Coal)

EASY
10th CBSE
IMPORTANT
Name any one hydrocarbon fraction obtained during the fractional distillation of petroleum which is used as a domestic fuel.
(Choose from: Kerosene/Gasoline/Bitumen/Fuel oil)

MEDIUM
10th CBSE
IMPORTANT
What are the various fuels which are used to generate electricity in a thermal power plant?

EASY
10th CBSE
IMPORTANT
Name any four fractions obtained from petroleum which are used as fuels.

MEDIUM
10th CBSE
IMPORTANT
What is the composition of liquefied petroleum gas (LPG)?

EASY
10th CBSE
IMPORTANT
The material used for interconnection of the solar cells in the solar panel is
