Worksheetscombustion and flame
Total questions: 10
Worksheet time: 6mins
The substances which have very low ignition temperature will
Catch fire easily
Will not catch fire
Catch fire after some time
None of these
Ignition temperature is
Lowest temperature at which a substance catches fire
Highest temperature at which a substance catches fire
Any temperature
1000 C
Combustion is a
Natural process
Chemical process
Physical process
None of these processes
Ignition temperature is
Lowest temperature at which a substance catches fire
Highest temperature at which a substance catches fire
Any temperature
1000 C
The substances which have very low ignition temperature will
Catch fire easily
Will not catch fire
Catch fire after some time
None of these
The substances which have very low ignition temperature will
Catch fire easily
Will not catch fire
Catch fire after some time
None of these
Coal burns with__________
Flame
Only Glow
Both flame & glow
None of these
Combustion is a ____________
Physical process
Chemical process
Both of these processes
None of these
CNG & LPG are examples of
Solid fuels
Liquid fuels
Gaseous fuels
They are not fuels
Coal burns with__________
Flame
Only Glow
Both flame & glow
None of these
