AIR TRAVEL.
(SHORT QUESTIONS.)
Q.1: When, where, and by whom was the first aerial journey made?
Ans. A French man Pilatre-de-Roziar, made the first aerial journey. He made his first flight in a hot
air balloon on Oct. 15, 1783. He made his historic flight in Paris.
Q.2: What is the essential difference between an airship and an aeroplane?
Ans. The essential difference between an airship and an aeroplane is that airship is lighter than air
machine and aeroplane is heavier than air machine.
Q.3: Who invented the internal-combustion engine? Why was this type of engine so important to the
development of flight?
Ans. A German Scientist. Otto, invented it. It was a powerful engine. By the help of this kind of
engine it was possible to fly an aeroplane.
Q.4: Who was the first man to fly in an aeroplane? What was the date of his first flight and how
long did it last?
Ans. The first man to fly in an aeroplane was an American, Orville Wright. He flew by the help of
his aeroplane at "Kitty Hawk " on 17th December 1903. He stayed in the air for only twelve
seconds and then the machine fell down.
Q.5: What, in brief, are the respective functions of the reconnaissance aeroplane and the fighter?
Ans. The function of a Reconnaissance plane is to find out what is happening in the territory of the
enemy.
Q.6: How were the first bombing attacks on London made?
Ans. German bombers were made the first bombing attacks in London called Zeppelins. They came
from Germany during the First World War.
Q.7: How did civil aviation benefit from the rapid development of the bomber during the 1st World
War?
Ans. The civil aviation benefited from the development of the bomber by using it to carry
passengers.
Q.8: Why was it more difficult to fly from Europe to North America than from North America to
Europe?
Ans. While flying from Europe to North America the aeroplanes had to fly against opposite winds.
But on return to Europe they did not face any such difficulty.
Q.9: Why was the use of airships for passenger transport abandoned?
Ans. The use of airship for passenger transport was abandoned because they were not safe. Many
airships were wrecked.
Q.10: What new means of propulsion has greatly increased the speed of airliners in recent yeas?
What kind of radio device contributes to their safety?
Ans. It is the jet engine, which has increased the speed of airlines. They can fly very easily at the
speed of 2,000 miles an hour. Radar is a useful radio device, which has made it possible to fly
even in bad weather.
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MANSOOR ALI SHAH.