EASY
8th CBSE
IMPORTANT
Earn 100

What is an ideal fuel?

Important Questions on Combustion and Flame

EASY
8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 6 - Combustion and Flame>NUT Cracker>Q I

Question Image

Study the picture diagram below and answer the questions that follow.

Which of the following is the best fuel in terms of calorific value.

HARD
8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 6 - Combustion and Flame>NUT Cracker>Q I

Study the picture diagrams below and answer the questions that follow.

Question ImageArrange the above fuels in the order of increasing fuel efficiency.

EASY
8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 6 - Combustion and Flame>NUT Cracker>Q 1
Why should water not be used to control fires involving electrical equipments?
EASY
8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 6 - Combustion and Flame>NUT Cracker>Q 2
Why is LPG better domestic fuel than wood?
EASY
8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 6 - Combustion and Flame>NUT Cracker>Q 3
Why does a sheet of paper catch fire easily, while a piece of paper wrapped around aluminium rod does not?
EASY
8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 6 - Combustion and Flame>NUT Cracker>Q 4
Why it is difficult to burn heap of green leaves?
EASY
8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 6 - Combustion and Flame>NUT Cracker>Q 5
Why do goldsmiths use the outer zone of the flame for melting gold?
MEDIUM
8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 6 - Combustion and Flame>NaTTY NUT>Q I
Small pieces of _____ dipped in sulphur were used as matches in ancient Egypt. (bamboo wood/ pinewood)