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WHAT IS THE FULL FORM OF CNG AND LPG ?????????
oxygen, nitrogen, carbondioxide, carbon monoxide--------which is odd one out and why
list out 10 combustible materials and 10 non combustible materials
What is S.I unit of calorific value?
why hydrogen not used as a fuel ?
WHY DO WE WRAP A BLANKET AROUND A PERSON WHOSE CLOTHES CAUGHT FIRE
Is rusting of iron a combustion process ?
what is ideal fuel?
WHAT PROBLEM WILL ARISE IF A FUEL HAS AN IGNITION TEMPERATURE LOWER THAN THE AVERAGE ROOM TEMPERATURE ? NAME THE TYPE OF COMBUSTIONWILL OCCUR IN THIS CASE
What is rapid combustion?Give examples.
how is cough formed in our body?????
Only gases burn with a flame. But when you burn wood, it initially burns with a flame. Later, it only glows without a flame. Why?
list some characteristics of an ideal feul?
WHAT KIND OF FIRES CAN EFFECTIVELY BE PUT OUT BY WATER? WHAT KIND OF FIRES IS TI NOT SUITABLE FOR? GIVE REASONS FOR BOTH CASES
how many types of combustion are there explain them
difference between rapid combustion , spontaneous combustion and explosion
distinguish between combustible and non combustible substances ,giving three examples of each
Suppose you are asked to boil a given quantiity of water using cow dung cake, coal and LPG as fuels. Which fuel would you prefer? Give your reason.
all combustible substance are not fuel. Why??
What is the difference between burning of coal and burning of candle ?
why do you have to use paper or kerosene oil to start fire in wood or coal
a)Which of the following fuels is expected to leave a residue upon burning.
a)coal b)petrol c)LPG
some judicious use of fossil fuels.
NAME ONE FUEL WHICH BURNS WITHOUT GIVING OFF WATER VAPOUR? AND WHY?
what is ideal fuel.
Q88)Name and give chemical equations to show the products of the combustion reation in:
a)a limited supply of air
b)sufficient supply of air
What are inert gases?give some examples?
Why does a goldsmith blow the outermost zone of a flame with metallic blowpipe for melting gold and silver?
what's the advantage of fish having a streamlined body ?
name two solid fuels,two liquid fuels and two gasious fuel
give 3 conditions which are necessary for combustion?
Green leaves do not burn easily while dry leaves catch fire easily.Explain.
Is LPG a better domestic fuel than wood and why ?
why does the paper cup containing water not catch fire on heating ?
What is calorific value ?
WHY DOES A MATCHSTICK BURN ON RUBBING IT ON THE SIDE OF THE MATCHBOX
WHEN THE CLOTHES OF A PERSON CATCH FIRE,HE SHOULD BE COVERED WITH A BLANKET WHY?
why is hydrogen not used as fuel though it has highest calorific value?
' Gaseous fuels are better than liquids and solid fuels'. COMMENT.
What is the difference between Spontaneous, rapid and explosion type of combustion
Why do forest fire occurs during hot summers?
An ideal fuel has .......... calorific value .
can the process of rusting be called combustion need answer with explanation and if possible give some examples but explation is important
are yaar my teacher doesnt know the answer to this question
what is the difference between combustible and inflammable substances?
What are non-combustible substances? Explain with examples.
why should water not be used to put off fire caused by burning of petrol?
How has the use of CNG in motor vehicles reduced pollution in big cities?Explain
Calorific value of Cowdung is 7000kg. How much cowdung cakes are required to produce heat energy of 35000 J? Explain with steps.
In which zone of the flame fuel remains in vapour form ?
Does yellow flame from a gas burner shows complete burning of the fuel ?
your LPG gas stove at home is giving a yellow flame. What can this mean?
If it is said that - 'The colour of the flame varies with the naure of combustible substance and the amount of oxygen supply' that what is the nature of Camhor , Magnesium , Kerosene , Gas stove and LPG ??
what is the difference between combustion and burning?
paper by itself catches fire easily whereas a piece of paper wrapped around an aluminium pipe does not
The blue zone in a candle flame is blue in colour due to complete combustion. Complete combustion takes place in invisible (non-luminous) zone also. Instead of becoming blue in colour, why is it invisible to us?
what precautions should be taken while using cng fuel in vehicles ? plss fasst i have just 9 hrs
why are some materials burn with flame while others without flame?
hope ans by meritnation expert
What is history of matchstick?
which zone of a flame does a goldsmith use for melting gold and silver and why
is charcoal a inflammable substance?if not then list the items which are inflammable????
What is tilling? What purpose does it serve?
Why is hydrogen not used as a fuel though it has a high calorific value ?
What is slow combustion?
DIFFERENTIATE BETWEEN SLOW COMBUSTION RAPID COMBUSTION SPONTANEOUS COMBUSTION AND VOLATILE COMBUSTION.
PLZ..... ANSWER IT FAST .IT S IMPORTANT.
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