Wired Faculty
Sponsor Area
Why does a phuljhari (sparking light) require some heating before it sparks ?
Phuljhari requires some heating before it sparks to attain its ignition temperature.
Compare LPG and wood as fuels.
Give reasons :
Water is not used to control the fire involving electrical equipment.
Give reasons :
LPG is a better domestic fuel than wood.
Give reasons :
Paper by itself catches fire easily whereas a piece of paper wrapped around an aluminium pipe does not.
Make a labelled diagram of candle flame.
Name the unit in which the calorific value of a fuel is expressed.
Explain how CO2 is able to control fires.
It is difficult to burn a heap of green leaves but dry leaves catch fire easily. Explain.
Which zone of a flame does a goldsmith use for melting gold and silver and why ?
In an experiment 4.5 kg of a fuel was completely burnt. The heat produced was measured to be 180,000 kJ. Calculate the calorific value of the fuel.
Sponsor Area
Mock Test Series
