Which of the given statements is true for gaseous fuels?
They burn completely leaving some residues.
They have high calorific values with a moderate rate of burning.
They have high ignition temperatures.
They are unsafe to handle.
Gaseous fuels have high calorific values as well as moderate rate of burning.
Q79) Which of the following statements are true with respect to carbon nanotubes?
1.They are extremely light weight.
2. They have high temperature tolerance and low thermal expansion.
3. They are increasingly being used in electrical equipment.