Q:

Gases in the atmosphere and their percentages?

Answer

The air around us is a mixture of gases, mainly nitrogen and oxygen, but containing much smaller amounts of water and other gases.

Earth's atmosphere is composed of many gases. Their percentages by volume is given by::

78% Nitrogen,

21% Oxygen,

0.9% Argon, and

0.03% Carbon dioxide

And very small percentages of other elements.

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Q:

Who is the founder and also first Chairman of the ISRO, it was established in 1969?

A) Vikram Sarabhai	B) A P J Abdul Kalam
C) Homi J Bhabha	D) Satish Dhawan

Answer & Explanation Answer: A) Vikram Sarabhai

Explanation:

The founder and also first Chairman of the ISRO is Vikram Sarabhai.

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Q:

Main bench of National Green Tribunal is located at

A) Delhi	B) Pune
C) Lucknow	D) Bhopal

Answer & Explanation Answer: A) Delhi

Explanation:

Main bench of National Green Tribunal is located at national capital city Delhi on 18th October, 2010.

Its other benches are:

West sone at Pune

Central zone at Bhopal

East zone at Kolkata

South zone at Chennai.

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Q:

A shopkeeper mixed two verities of rice at Rs. 40/kg and Rs.60/kg in the ratio 3: 2 and sold the mixture at 10% profit. Find the price per kg at which he sold the mixture?

A) Rs. 56	B) Rs. 58.8
C) Rs. 54	D) Rs. 52.8

Answer & Explanation Answer: D) Rs. 52.8

Explanation:

Ans. CP of mixture = {(40*3+60*2)/2+3} = 48 SP of the mixture = 1.1 48 =52.8

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Q:

Which period in medieval western Europe is known as 'Dark Ages'?

A) Early Middle Ages	B) Late Middle Ages
C) Entire Middle Ages	D) Mid Middle Ages

Answer & Explanation Answer: A) Early Middle Ages

Explanation:

The Early Middle Ages have often been called the Dark Ages, and to some extent they were truly dark. The people led a miserable life. Education was very uncommon. The helplessness of the comman man the arbitary rule of the king and the barons and the absence of national unity-all these conditions were common in Europe. The term 'Middle Ages' does not cover a uniform period for all the countries of the world.For Europe and the Westren World , the 'Middle Ages' are generally considered to be the period between AD 500 and AD 1500.

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Q:

Point out the error, if any, in the following program.

main()

{

int ( *p )() = fun;

( *P ) ();

}

fun ()

{

Printf ( "\nLoud and clear" );

}

Answer

Here we are initalising the function pointer p to the address of the function fun(). But during this initialisation the function has not been defined. Hence an error.

To eliminate this error add the prototype of the fun() before declaration of p, as shown below:

extern int fun(); or simply int fun();

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Q:

Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.

The first working steam powered vehicle was designed and most likely built by Ferdinand Verbies, a Flemish member of a Jesuit mission in China around 1672. It was a 65 cm long scale model toy for the Chinese Emperor, that was unable to carry a driver or a passenger. It is not known if Verbiest's model was ever built. Nicolas- Joseph Cugnot is widely credited with building the first full scale, self propelled mechanical vehicle or automobile in about 1769; he also created a steam powered tricycle. He constructed two steam tractors for the French Army, one of which is preserved in the French National Conservatory of Arts and Crafts. His inventions were however handicapped by problems of water supply and maintaining steam pressure. In 1801, Richard Trevithick built and demonstrated his Puffing Devil road locomotive, believed by many to be the first demonstration of a steam powered road vehicle. It was unable to maintain sufficient steam pressure for long periods. Sentiment against steam powered road vehicles led to the Locomotive Acts of 1865. In 1807 Nicephore Niepce and his brother Claude probably created the world's first internal combustion engine which they called Pyreolophore.

The first fullscale, working steam powered tricycle was built by:

A) Verbiest	B) Cugnot
C) Trevithick	D) Niepce

Answer & Explanation Answer: B) Cugnot

Explanation:

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Q:

What is the minimum age to get a license?

A) 18 years	B) 17 years
C) 16 years	D) 21 years

Answer & Explanation Answer: C) 16 years

Explanation:

The minimum age for getting a learner's license as per the government rules is 16 years.

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