IIT JEE Practice Question and Answer

Q: LCD of 12 and 18 1420 0

  • 1
    36
    Correct
    Wrong
  • 2
    42
    Correct
    Wrong
  • 3
    12
    Correct
    Wrong
  • 4
    6
    Correct
    Wrong
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Answer : 1. "36"
Explanation :

Answer: A) 36 Explanation:   LCD is nothing but Lowest or Least Common Denominator   Here LCD of 12 and 18 means LCD of two fractions with denominators 12 and 18 respectively.   Therefore, LCM of 12 & 18 = 6 x 3 x 2 = 36     How to calculate LCD :: The lowest common denominator or least common denominator (LCD) is the least common multiple (LCM) of the denominators of a set of fractions.

Q: which of the following statements are correct 1632 0

  • 1
    Sir Richard Arkwright - Father of industrial revolution
    Correct
    Wrong
  • 2
    Michael Faraday - Discovered Benzene and invented Bunsen Burner
    Correct
    Wrong
  • 3
    Thomas Alva Edison - phonograph and motion picture camera
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
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Answer : 4. "All the above"
Explanation :

Answer: D) All the above Explanation: Inventors and their Inventions ::   Sir Richard Arkwright - Father of industrial revolution.   Michael Faraday - Discovered Benzene and invented Bunsen Burner.   Thomas Alva Edison - Invented Phonograph and motion picture camera.

Q: Which of the statements about the Supreme Court are true 1485 0

  • 1
    a state law may be overturned by the Supreme Court
    Correct
    Wrong
  • 2
    the Supreme Court can determine if the actions of the President are legal
    Correct
    Wrong
  • 3
    the Surpreme Court detemrines the Constiutionality of all laws passed by Congress
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
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Answer : 4. "All the above"
Explanation :

Answer: D) All the above Explanation:

Q: Which of the following river empties into the Arabian Sea? 1739 0

  • 1
    Ganga
    Correct
    Wrong
  • 2
    Yamuna
    Correct
    Wrong
  • 3
    Indus
    Correct
    Wrong
  • 4
    Kaveri
    Correct
    Wrong
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Answer : 3. "Indus"
Explanation :

Answer: C) Indus Explanation: The river which starts flowing from Himalayas on the North to southwards to empty in the Arabian sea is Indus River.

Q: Find the next two numbers in the sequence 4, 12, 6, 18, 12, 26, 30, ?, ? 1517 0

  • 1
    36 & 90
    Correct
    Wrong
  • 2
    90 & 41
    Correct
    Wrong
  • 3
    45 & 36
    Correct
    Wrong
  • 4
    41 & 36
    Correct
    Wrong
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Answer : 1. "36 & 90"
Explanation :

Answer: A) 36 & 90 Explanation: the next 2 number in series we need to divide the series into 2 different series First series : 4 , 6, 12, 30 ?? Second Series : 12,18,26, ?? So we need to see for the pattern for those series in order to find the next two number , we can do this by finding the difference or division , multiplication logic whatever may apply :   Pattern of Series 1 :   6 divide 4 : 1.5 Next number i.e 12 divided by 6=2 Next number i.e 30 divided by 12 =2.5 So series is going in multiples of 1.5, 2, 2.5, 3 , so on So first series will look like 4 , 6, 12, 30, 30x3 =90   Pattern of Series 2 : 12,18,26, ??   Its simple Adding numbers with iterative logic (i.e 6, 8, then followed by 10, 12) Series will be like 12,18,26,36.   For the next two numbers : Series will be like 4, 12, 6, 18, 12, 26, 30, 36, 90

Q: Where are Alluvial Soils found in India? 1461 0

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Answer :
Explanation :

1. In India Alluvial Soils are most likely found in Indo-Gangetic Plains that stretches across almost East and North India.    2. Indo-Gangetic Plains has got this name after the two rivers The Indus and The Ganges Drain th plain.   3. These soil cover more than the 35% of the total land in India.   4. These Soils are suitable for Wheat, Vegetables, Cotton, Bajra, Oil seeds,...   5. These soils tend to be sandier and has quick draining properties than many other soils in India.

Q: Which supercomputer is developed by the Indian Scientists? 4245 0

  • 1
    Super 3
    Correct
    Wrong
  • 2
    Param 808
    Correct
    Wrong
  • 3
    Super 149
    Correct
    Wrong
  • 4
    Param 8000
    Correct
    Wrong
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Answer : 4. "Param 8000"
Explanation :

Answer: D) Param 8000 Explanation: PARAM 8000 was was the first supercomputer developed by Indian scientists launched on July 01, 1991 is considered India's first supercomputer.   It was indigenously built in 1991 by Centre for Development of Advanced Computing and was replicated and installed at ICAD Moscow in 1991 under Russian collaboration.

Q: Habeas Corpus Act 1679 1421 0

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Answer :
Explanation :

The Habeas Corpus writ is issued to produce a person who has been detained, whether in prison or in private custody, before a court and to release him if such detention is found illegal.   The right to habeas corpus has been used by the Indian judiciary effectively only in order to secure the release of a person from illegal detention.   If the detained person is unable to seek the writ of habeas corpus, someone else mayact so on his behalf.

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