IIT JEE Practice Question and Answer

Q: In oceania, most towns began as 1825 0

  • 1
    Colonial ports
    Correct
    Wrong
  • 2
    plantations
    Correct
    Wrong
  • 3
    tribal ritual centers
    Correct
    Wrong
  • 4
    capital cities
    Correct
    Wrong
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Answer : 1. "Colonial ports"
Explanation :

Answer: A) Colonial ports Explanation: Oceania is a geographic region comprising Melanesia, Micronesia, Polynesia and Australasia. In Oceani, most towns began as Colonial Ports.

Q: Which startup acquired Google's satellite imaging business in 2017 ? 1825 0

  • 1
    NovaWurks
    Correct
    Wrong
  • 2
    PlanetiQ
    Correct
    Wrong
  • 3
    Planet Labs
    Correct
    Wrong
  • 4
    UrtheCast
    Correct
    Wrong
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Answer : 3. "Planet Labs"
Explanation :

Answer: C) Planet Labs Explanation: American startup Planet Labs, that launches small satellites into orbit and sells the imagery, has announced its acquisition of Google's 'Terra Bella' satellite business. As part of the agreement, 60 Google employees will join the startup founded by ex-NASA scientists. Terra Bella, was acquired by Google in 2014 for $500 million and that time it was known as Skybox Imaging.

Q: 10 examples of computer hardware? 1825 0

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Answer :
Explanation :

A computer system consists of two major elements: hardware and software. Computer hardware is the collection of all the parts you can physically touch. Computer software, on the other hand, is not something you can touch. Software is a set of instructions for a computer to perform specific operations. You need both hardware and software for a computer system to work. 10 examples of computer hardware are :: 1. Monitor 2. Motherboard 3. CPU(Microprocessor)  4. Main memory(RAM) 5. Expansion cards  6. Power supply unit 7. Optical disc drive  8. Hard disk drive (HDD) 9. Keyboard 10. Mouse

Q: Voiceless it cries, wingless flutters, toothless bites, mouth-less mutters. What is it? 1825 0

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Answer :
Explanation :

It is The Wind which cries without a voice, flutters without wings, bites toothless and mutters mouthless.

Q: Dry ice is an example of which process 1824 0

  • 1
    Condensation
    Correct
    Wrong
  • 2
    Evaporation
    Correct
    Wrong
  • 3
    Sublimation
    Correct
    Wrong
  • 4
    Freezing
    Correct
    Wrong
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Answer : 3. "Sublimation"
Explanation :

Answer: C) Sublimation Explanation: Sublimation is a process when a solid changes directly into gas instead changing into liquid first. Dry ice is an example of Sublimation process because it doesn't change into liquid CO2 and directly change into gaseous CO2 when heated.   Hence, Dry ice is an example of Sublimation process.

Q: Plants are photoautotrophs. What does this mean? 1822 0

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Answer :
Explanation :

Photoautotrophs are those organisms that can make their own food using sun light with the help of the process of photosynthesis. Plants can prepare their own food using sunlight. Hence they are Photoautotrophs.

Q: What color is Lobster blood? 1822 0

  • 1
    Blue
    Correct
    Wrong
  • 2
    White
    Correct
    Wrong
  • 3
    Red
    Correct
    Wrong
  • 4
    Colourless
    Correct
    Wrong
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Answer : 1. "Blue"
Explanation :

Answer: A) Blue Explanation: Lobsters, like snails and spiders, have blue blood due to the presence of hemocyanin, which contains copper. In contrast, vertebrates and many other animals have red blood from iron-rich hemoglobin.

Q: Magnetic domains normally occur in 1822 0

  • 1
    copper
    Correct
    Wrong
  • 2
    silver
    Correct
    Wrong
  • 3
    iron
    Correct
    Wrong
  • 4
    All of the above
    Correct
    Wrong
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Answer : 3. "iron"
Explanation :

Answer: C) iron Explanation: A magnetic domain is a region within a magnetic material in which the magnetization is in a uniform direction. This means that the individual magnetic moments of the atoms are aligned with one another and they point in the same direction.

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