Vegetable oil has been known from antiquity. No household can get on without it, for it is used
in cooking. Perfumes may be made from the oils of certain flowers. Soaps are made from
vegetable and animal oils.
To the ordinary man, one kind of oil may be as important as another. But when the 5 politician
or the engineer refers to oil, he almost always means mineral oil, the oil that drives tanks,aeroplanes and warships, motor cars and diesel locomotives; the oil that is used to lubricate all
kinds of machinery. This is the oil that has changed the life of the common man. When it is
refined into petrol it is used to drive the internal combustion engine. To it we owe the existence
of the motor car, which has replaced the private 10 carriage drawn by the horse. To it we owe
the possibility of flying. It has changed the methods of warfare on land and sea. This kind of
oil comes out of the earth. Because it burns well, it is used as fuel and in some ways, it is
superior to coal in this respect. Many big ships now burn oil instead of coal. Because it burns
brightly, it is used for illumination; countless homes are still illuminated with oil burning lamps.
Because it 15 is very slippery, it is used for lubrication. Two metal surfaces rubbing together
cause friction and heat. But if they are separated by a thin film of oil, the friction and heat are
reduced. No machine would work for long if it were not properly lubricated. The oil used for
this purpose must be of the correct thickness; if it is too thin it will not give sufficient
lubrication, and if it is too thick it will not reach all parts that must be lubricated.
The existence of oil wells has been known for a long time. Some of the Indians of North
America used to collect and sell the oil from the wells of Pennsylvania. No one, however, seems
to have realised the importance of this oil until it was found that paraffin oil could be made
from it. This led to the development of the wells and to the making of enormous profits. When
the internal combustion engine was invented, oil became of 25 worldwide importance.
-Extracted from ‘Oil by G.C. Thornley (adapted)
Read the passage mentioned above and answer the questions that follow:
i. DONE
ii. Where does the mineral oil come from?
iii. Which is the oldest known oil?
iv. DONE
v.DONE
JUST ANSWER ii.,iii.,
NO SPAM
ANSWER IF U KNOW
in cooking. Perfumes may be made from the oils of certain flowers. Soaps are made from
vegetable and animal oils.
To the ordinary man, one kind of oil may be as important as another. But when the 5 politician
or the engineer refers to oil, he almost always means mineral oil, the oil that drives tanks,aeroplanes and warships, motor cars and diesel locomotives; the oil that is used to lubricate all
kinds of machinery. This is the oil that has changed the life of the common man. When it is
refined into petrol it is used to drive the internal combustion engine. To it we owe the existence
of the motor car, which has replaced the private 10 carriage drawn by the horse. To it we owe
the possibility of flying. It has changed the methods of warfare on land and sea. This kind of
oil comes out of the earth. Because it burns well, it is used as fuel and in some ways, it is
superior to coal in this respect. Many big ships now burn oil instead of coal. Because it burns
brightly, it is used for illumination; countless homes are still illuminated with oil burning lamps.
Because it 15 is very slippery, it is used for lubrication. Two metal surfaces rubbing together
cause friction and heat. But if they are separated by a thin film of oil, the friction and heat are
reduced. No machine would work for long if it were not properly lubricated. The oil used for
this purpose must be of the correct thickness; if it is too thin it will not give sufficient
lubrication, and if it is too thick it will not reach all parts that must be lubricated.
The existence of oil wells has been known for a long time. Some of the Indians of North
America used to collect and sell the oil from the wells of Pennsylvania. No one, however, seems
to have realised the importance of this oil until it was found that paraffin oil could be made
from it. This led to the development of the wells and to the making of enormous profits. When
the internal combustion engine was invented, oil became of 25 worldwide importance.
-Extracted from ‘Oil by G.C. Thornley (adapted)
Read the passage mentioned above and answer the questions that follow:
i. DONE
ii. Where does the mineral oil come from?
iii. Which is the oldest known oil?
iv. DONE
v.DONE
JUST ANSWER ii.,iii.,
NO SPAM
ANSWER IF U KNOW
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Answer:
Vegetable oil has been known from antiquity. No household can get on without it, for it is used
in cooking. Perfumes may be made from the oils of certain flowers. Soaps are made from
vegetable and animal oils.
To the ordinary man, one kind of oil may be as important as another. But when the 5 politician
or the engineer refers to oil, he almost always means mineral oil, the oil that drives tanks,aeroplanes and warships, motor cars and diesel locomotives; the oil that is used to lubricate all
kinds of machinery. This is the oil that has changed the life of the common man. When it is
refined into petrol it is used to drive the internal combustion engine. To it we owe the existence
of the motor car, which has replaced the private 10 carriage drawn by the horse. To it we owe
the possibility of flying. It has changed the methods of warfare on land and sea. This kind of
oil comes out of the earth. Because it burns well, it is used as fuel and in some ways, it is
superior to coal in this respect. Many big ships now burn oil instead of coal. Because it burns
brightly, it is used for illumination; countless homes are still illuminated with oil burning lamps.
Because it 15 is very slippery, it is used for lubrication. Two metal surfaces rubbing together
cause friction and heat. But if they are separated by a thin film of oil, the friction and heat are
reduced. No machine would work for long if it were not properly lubricated. The oil used for
this purpose must be of the correct thickness; if it is too thin it will not give sufficient
lubrication, and if it is too thick it will not reach all parts that must be lubricated.
The existence of oil wells has been known for a long time. Some of the Indians of North
America used to collect and sell the oil from the wells of Pennsylvania. No one, however, seems
to have realised the importance of this oil until it was found that paraffin oil could be made
from it. This led to the development of the wells and to the making of enormous profits. When
the internal combustion engine was invented, oil became of 25 worldwide importance.
-Extracted from ‘Oil by G.C. Thornley (adapted)
Read the passage mentioned above and answer the questions that follow:
i. DONE
ii. Where does the mineral oil come from?
iii. Which is the oldest known oil?
iv. DONE
v.DONE
JUST ANSWER ii.,iii.,
NO SPAM
ANSWER IF U KNOW
Explanation:
vagitable and animal oil