IIT JEE Practice Question and Answer

Q: Nipah virus outbreak in Bangladesh in the year 1392 0

  • 1
    2001
    Correct
    Wrong
  • 2
    2006
    Correct
    Wrong
  • 3
    2012
    Correct
    Wrong
  • 4
    2015
    Correct
    Wrong
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Answer : 1. "2001"
Explanation :

Answer: A) 2001 Explanation: The first identification of Nipah virus as a cause of an outbreak of encephalitis was reported in 2001 in Meherpur district of Bangladesh. Since, then Outbreaks of the deadly Nipah virus has been recorded almost every year in selected districts of Bangladesh.   Drinking raw date palm sap and contact with a case were identified as the major risk factors for acquiring the disease.

Q: Rifath Sharook has designed the world’s lightest satellite “KalamSat”. He hails from which country  ? 1392 0

  • 1
    Russia
    Correct
    Wrong
  • 2
    Pakistan
    Correct
    Wrong
  • 3
    Dubai
    Correct
    Wrong
  • 4
    India
    Correct
    Wrong
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Answer : 4. "India"
Explanation :

Answer: D) India Explanation: Indian teen Rifath Sharook from Tamil Nadu has designed the world’s lightest & smallest satellite named “KalamSat”. The satellite weighs only 64 grams and will be launched by NASA on June 21, 2017. With this, he will become the first Indian student to have his experiment launched by NASA. The main role of the satellite will be to demonstrate the performance of 3-D printed carbon fibre. The satellite has been designed in a way which will have a 240-minute mission in space and will operate for 12 minutes in a micro-gravity environment of space.

Q: Who has sworn in as 45th Chief Justice of India  ? 1391 0

  • 1
    Dipak Misra
    Correct
    Wrong
  • 2
    J S Khehar
    Correct
    Wrong
  • 3
    T. S. Thakur
    Correct
    Wrong
  • 4
    Ranganath Misra
    Correct
    Wrong
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Answer : 1. "Dipak Misra"
Explanation :

Answer: A) Dipak Misra Explanation:

Q: Which is first city in the world to get its own Microsoft font in 2017 ? 1391 0

  • 1
    India
    Correct
    Wrong
  • 2
    Iran
    Correct
    Wrong
  • 3
    Dubai
    Correct
    Wrong
  • 4
    Iraq
    Correct
    Wrong
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Answer : 3. "Dubai"
Explanation :

Answer: C) Dubai Explanation: Dubai has become the first city in the world to get its own Microsoft font. ii. Sheikh Hamdan bin Mohammed bin Rashid Al Maktoum, Dubai's Crown Prince and Chairman of the Executive Council, launched the Dubai Font recently. iii. The font, available in three styles as 'Dubai', 'Dubai Medium' and 'Dubai Light', can be in italics, underlined and bold.

Q: Which one of the following elements is a transition element? 1389 0

  • 1
    H
    Correct
    Wrong
  • 2
    As
    Correct
    Wrong
  • 3
    Fe
    Correct
    Wrong
  • 4
    Sr
    Correct
    Wrong
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Answer : 3. "Fe"
Explanation :

Answer: C) Fe Explanation: In chemistry, the term transition metal has three possible meanings: The IUPAC definition defines a transition metal as "an element whose atom has a partially filled d sub-shell, or which can give rise to cations with an incomplete d sub-shell". Any of the set of metallic elements occupying a central block (Groups IVB–VIII, IB, and IIB, or 4–12) in the periodic table, e.g. iron, manganese, chromium, and copper. Chemically they show variable valency and a strong tendency to form coordination compounds, and many of their compounds are coloured.   Here in the given options, only iron (Fe) is a transition metal since Strontium is an alkaline earth, arsenic is a metalloid, hydrogen is (normally) a diatomic gas.

Q: Only For Geniuses Solve this MathPuzzle if you can? 1389 0

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Answer :
Explanation :

Let the required number be 'X' Condition 1 :   XX = 2X  => 2X2 = X => X = 12   Condition 2 : X × X = X2=> X = 12   Therefore, 12 is the number which becomes double when it is divided by itself and becomes half when it is multiplied by itself.

Q: How long would it take to travel 4 light years? 1388 0

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Answer :
Explanation :

There are approximately 6 trillion miles in a light-year, so the distance we need to go is 6 trillion miles / light-year times. 4 light-years is equal to 24 trillion miles. So, this whole would take 1.2 billion hours. There are 24 hours a day and 365.25 days per year, so this time in years is 137 thousand years.

Q: A seller charges 28% more from a customer as GST on an article. If customer paid Rs. 4544, what is the cost price of the article? 1388 0

  • 1
    Rs. 3550
    Correct
    Wrong
  • 2
    Rs. 2650
    Correct
    Wrong
  • 3
    Rs. 3840
    Correct
    Wrong
  • 4
    Rs. 2450
    Correct
    Wrong
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Answer : 1. "Rs. 3550"
Explanation :

Answer: A) Rs. 3550 Explanation: Let the cost price of the article be 'P' Then from given data, P + 28P100 = 4544=> 128P = 454400=> P = 3550 Hence, the cost price of the article = P = Rs. 3550

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