IIT JEE Practice Question and Answer

Q: What is the currency of Mexico ? 1859 0

  • 1
    Krones
    Correct
    Wrong
  • 2
    Lira
    Correct
    Wrong
  • 3
    Peso
    Correct
    Wrong
  • 4
    Mexican dollars
    Correct
    Wrong
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Answer : 3. "Peso"
Explanation :

Answer: C) Peso Explanation:

Q: Laxmi and Prasanna set on a journey. Laxmi moves northwards at a speed of 20kmph and Prasanna moves southward at a speed of 30 kmph. How far will be Prasanna from Laxmi after 60 minutes ? 1859 0

  • 1
    24 km
    Correct
    Wrong
  • 2
    50 km
    Correct
    Wrong
  • 3
    42 km
    Correct
    Wrong
  • 4
    30 km
    Correct
    Wrong
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Answer : 2. "50 km"
Explanation :

Answer: B) 50 km Explanation: We know 60 min = 1 hrTotal northward Laxmi's distance = 20kmph x 1hr = 20 kmTotal southward Prasanna's distance = 30kmph x 1hr = 30 kmTotal distance between Prasanna and Laxmi is = 20 + 30 = 50 km.

Q: Which of the following is a characteristic of the Ascomycota? 1858 0

  • 1
    Sac formation
    Correct
    Wrong
  • 2
    Zygospore formation
    Correct
    Wrong
  • 3
    Basidium formation
    Correct
    Wrong
  • 4
    All of the above
    Correct
    Wrong
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Answer : 1. "Sac formation"
Explanation :

Answer: A) Sac formation Explanation: Ascomycota is a division or phylum of the kingdom Fungi that, together with the Basidiomycota, form the subkingdom Dikarya. Its members are commonly known as the sac fungi or ascomycetes.    Hence, Sac formation is a characteristic of the Ascomycota fungi.

Q: Find the next number in the series 265, 269, 278, 284, ? 1857 0

  • 1
    309
    Correct
    Wrong
  • 2
    319
    Correct
    Wrong
  • 3
    298
    Correct
    Wrong
  • 4
    415
    Correct
    Wrong
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Answer : 1. "309"
Explanation :

Answer: A) 309 Explanation: The pattern in the given series is +4, +9, +16, +25, ... i.e. 22,32,42,52... The next number is 284+25 = 309.

Q: Metals are good conductors of electricity because 1857 0

  • 1
    The atoms are lightly packed
    Correct
    Wrong
  • 2
    They contain free electrons
    Correct
    Wrong
  • 3
    They have high melting point
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
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Answer : 2. "They contain free electrons"
Explanation :

Answer: B) They contain free electrons Explanation: Metal particles are held together by strong metallic bonds, which is why they have high melting and boiling points. The free electrons in metals can move through the metal, allowing metals to conduct electricity. Because the electrons in the atom's higher energy levels can separate from the atoms easily, they can be pulled out with very little energy. Because the molecular structure of the metal is such that 'free electrons' are free to move, thus being categorized as electrically conductive.   For example, copper is used for electrical wiring because it is a good conductor of electricity.

Q: Organisms need Nutrients in order to 1857 0

  • 1
    Breaking down food
    Correct
    Wrong
  • 2
    Utilize chemical compounds
    Correct
    Wrong
  • 3
    recycling
    Correct
    Wrong
  • 4
    None
    Correct
    Wrong
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Answer : 1. "Breaking down food"
Explanation :

Answer: A) Breaking down food Explanation: Nutrients are necessary for break down the food and supply energy to the organisms and to carry out essential life functions. Important nutrients are Hydrogen, Carbon and Oxygen.   Some more important nutrients for plants are : Potassium, Sulphur, Nitrogen, Phosphorous, Calcium and Magnesium.

Q: Modem is used mostly for ? 1857 0

  • 1
    A modern empty memory modules
    Correct
    Wrong
  • 2
    Connecting to internet
    Correct
    Wrong
  • 3
    Mostly for file system
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
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Answer : 2. "Connecting to internet"
Explanation :

Answer: B) Connecting to internet Explanation: A modem is nothing but short for Modulator and Demodulator. It is used mostly for connecting to the internet. A modem is a device or program that enables a computer to transmit data over, for example, telephone or cable lines. Computer information is stored digitally, whereas information transmitted over telephone lines is transmitted in the form of analog waves.

Q: Who has been appointed by Flipkart as an in-charge of the newly acquired e-Bay India business ? 1856 0

  • 1
    Anil Goteti
    Correct
    Wrong
  • 2
    S Aparna
    Correct
    Wrong
  • 3
    Rajeev Kumar
    Correct
    Wrong
  • 4
    Kalyan Krishnamurthy
    Correct
    Wrong
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Answer : 1. "Anil Goteti"
Explanation :

Answer: A) Anil Goteti Explanation:

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