Questions

Q:

Which  one  of  the  following  statements  is not correct?

A) The    cathode    rays    originate    from cathode   and   proceed   towards   the anode   in   a   cathode-ray   discharge tube. B) The television picture tubes are nothing but cathode ray tubes.
C) The  cathode  rays  themselves  are  not visible. D) The   characteristics   of   cathode   rays depend  upon  the  nature  of  the  gas present in the cathode-ray tube.
 
Answer & Explanation Answer: D) The   characteristics   of   cathode   rays depend  upon  the  nature  of  the  gas present in the cathode-ray tube.

Explanation:

Cathode ray is a beam of electrons emitted   from   the   cathode   of   a vacuum    tube.    It    is    invisible. Cathode  ray  tubes  are  also  found in     televisions     and     computer monitors.  Since  cathode  ray  is  a beam of electrons and all electrons are  identical,  charge  to  mass  ratio is same for all the gases and does not depend on the nature of gas.

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Filed Under: Chemistry
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Q:

Which among the following is false about alpha particles?

A) They have high ionizing power B) They have high penetrating power
C) They have high kinetic energy D) They are positively charged helium nuclei
 
Answer & Explanation Answer: B) They have high penetrating power

Explanation:
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Filed Under: Chemistry
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Q:

Increasing marginal cost of production explains

A) the income effect. B) why the supply curve is upsloping.
C) why the demand curve is downsloping D) the law of demand.
 
Answer & Explanation Answer: B) why the supply curve is upsloping.

Explanation:
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Filed Under: Indian Economy
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Q:

Soil that forms on unconsolidated deposits is called

A) humus B) bedrock
C) transported soil D) residual soil
 
Answer & Explanation Answer: C) transported soil

Explanation:

Transported soils form from weathered material deposits, which are transported by natural forces to a new site, away from the site of origin.

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Filed Under: General Science
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Q:

Atmospheric conditions are well governed by humidity. Which one among the following may best define humidity?

A) Form of suspended water droplets caused bycondensation B) Deposition if atmospheric moisture
C) Almost microscopically small drops of water condensed from and suspended in air D) The moisture content of the atmosphere at a particular time and place
 
Answer & Explanation Answer: D) The moisture content of the atmosphere at a particular time and place

Explanation:

"Humidity" refers to the presence of water vapor in the atmosphere. It is measured in either relative terms (relative humidity) or absolute terms (dewpoint temperature).Humidity indicates the likelihood for precipitation, dew, or fog to be present.

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Q:

In the following passage some of the words have been left out. Read the passage carefully and choose the correct answer for the given blank out of the four alternatives.


War and Peace, an epic historical novel by Leo Tolstoy, was_____ published as Voyna i mir in 1865-69. This ____study of early 19th century Russian society, noted for its _____of realistic detail and variety of psychological______is generally regarded as one of the world's greatest novels. War and Peace is_____concerned with the histories of five aristocratic families, the members of which are _____against the_____background of Russian social life during the war against Napoleon. The_____ of war, however, is____to the story of family existence which involves Tolstoy's optimistic belief in the life-asserting ______of human existence.

 

Variety of psychological _____ is generally regarded as one of the world's greatest novels.

A) criticism B) analysis
C) instances D) depth
 
Answer & Explanation Answer: B) analysis

Explanation:
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Filed Under: English
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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.

Cugnot built steam tractors for:

A) The Chinese Emperor B) The French Army
C) The Jesuit mission D) The French Conservatory
 
Answer & Explanation Answer: B) The French Army

Explanation:
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Q:

Which of the following is not a National Park?

A) Corbett National Park B) Kaziranga National Park
C) Satara National Park D) Bandipur National Park
 
Answer & Explanation Answer: C) Satara National Park

Explanation:
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Filed Under: Indian Geography
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