MCQ on Sources of Energy

CBSE 10th Class MCQ CBSE Multiple Choice Questions (MCQ) CBSE NCERT 10th Class MCQ on Science

21- Which one of the following is left as residue when wood is burnt in a limited supply of oxygen, water and volatile material present in it and get removed?

(A) Charcoal

(B) LPG

(C) Bio-Mass

(D) None of the above

 

22- Cow dung, plant material waste, vegetables waste and sewage are decomposed in the absence of oxygen to give ……………..

(A) LPG

(B) Bio-Gas

(C) CNG

(D) All of the above

 

23- Bio-Mass is popularly known as………………….

(A) CNG gas

(B) LPG gas

(C) Gobar gas

(D) All of the above

 

24- …………….. generate gases like methane, carbon dioxide, hydrogen and hydrogen sulphide.

(A) Hydel plant

(B) Hydro plant

(C) Thermal plant

(D) Bio- Mass plant

 

25- What percentage of methane gas is contained in Bio- Gas?

(A) 0%

(B) 45%

(C) 60%

(D) 75%

 

26- A …………….is consists of a structure similar to electric fan.

(A) Wind mills

(B) Solar energy

(C) Thermal energy

(D) Hydro energy

 

27- Which country is called the country of winds in the world?

(A) Switzerland

(B) Denmark

(C) New Zealand

(D) None of the above

 

28- The largest wind energy farm has been established near ……………..in Tamil Nadu and it generates 380 MW of electricity.

(A) Kerala

(B) Andaman

(C) Kanyakumari

(D) Nicobar

 

29- Which of the following is/are used in solar cooker to trap the solar energy?

(A) Steel

(B) Aluminium

(C) Copper

(D) Glass/mirrors

 

30- ……………….happens because the burning fossil fuels release oxides of carbon, nitrogen and sulphur in the air.

(A)Acid rain

(B) Ashes

(C) Smoke

(D)Flame

 

ANSWERS:

21-(A), 22-(B), 23-(C), 24-(D), 25-(D), 26-(A), 27-(B), 28-(C), 29-(D), 30-(A)