IIT JEE Practice Question and Answer

Q: Which state has won the 'Best Tourism State' national award 2017 ? 1057 0

  • 1
    Maharashtra
    Correct
    Wrong
  • 2
    Karnataka
    Correct
    Wrong
  • 3
    Tamilnadu
    Correct
    Wrong
  • 4
    Madhya Pradesh
    Correct
    Wrong
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Answer : 4. "Madhya Pradesh"
Explanation :

Answer: D) Madhya Pradesh Explanation: Madhya Pradesh has won the 'Best Tourism State' national award for the third consecutive year. President Ram Nath Kovind handed over the award, named as 'Hall of Fame Award', to Minister of State for Tourism Surendra Patwa at a ceremony held at Vigyan Bhawan in New Delhi.

Q: One boat is overtaking another. Which boat must give way? 1049 0

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Answer :
Explanation :

The boat which is overtaken must give way to the boat which is overtaking.

Q: Brightness of bulb depends on voltage or current? 1046 0

  • 1
    Current
    Correct
    Wrong
  • 2
    Voltage
    Correct
    Wrong
  • 3
    Both A & B
    Correct
    Wrong
  • 4
    None
    Correct
    Wrong
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Answer : 3. "Both A & B"
Explanation :

Answer: C) Both A & B Explanation: Brightness of bulb depends on both voltage and current. The brightness depends on power. Since we know that  Power (P) = Voltage x Current = V I So whether you increase the current or the voltage the brightness will increase.   Example Illustration:  If you connect a long bulb and a round bulb in series, the long bulb glows but the round bulb does not. Both of them have the same current flowing through them (they are in series) but the long bulb has a greater voltage across it because it has more resistance (even though V= IR is not obeyed exactly, voltage drop does depend on the resistance). If you connect a round bulb and a long bulb in parallel, however, it is the round bulb that is brighter because now the voltage across both bulbs is the same but the current is larger through the round bulb (smaller resistance).   Hence, the brightness of a bulb depends on power i.e, both voltage and current.

Q: 40% of 80? 1043 0

  • 1
    36
    Correct
    Wrong
  • 2
    32
    Correct
    Wrong
  • 3
    42
    Correct
    Wrong
  • 4
    44
    Correct
    Wrong
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Answer : 2. "32"
Explanation :

Answer: B) 32 Explanation: Here 40% of 80 is given as 40100 x 80 = 8 x 4 = 32

Q: I have three eyes but only one leg. I still close one even if you beg.  What am I? 1041 0

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Answer :
Explanation :

A traffic light. It has three 'eyes' (the red, orange and green lights) and the leg is the pole holding it up. Many people beg the light to stay green as they’re approaching.

Q: What is the theme of 2017 World Telecommunication and Information Society Day (WTISD)  ? 1039 0

  • 1
    Entrepreneurship for social impact
    Correct
    Wrong
  • 2
    Reduce digital divide
    Correct
    Wrong
  • 3
    D)  ? A) Entrepreneurship for social impact B) Reduce digital divide C)
    Correct
    Wrong
  • 4
    ? A) Entrepreneurship for social impact B) Reduce digital divide C) Promote digital education for social welfare D) Big data for big impact
    Correct
    Wrong
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Answer : 4. "? A) Entrepreneurship for social impact B) Reduce digital divide C) Promote digital education for social welfare D) Big data for big impact"
Explanation :

Answer: D) Big data for big impact Explanation: The World Telecommunication and Information Society Day (WTISD) is observed every year on May 17 to mark the anniversary of the signing of the first International Telegraph Convention (ITC) and the creation of the International Telecommunication Union (ITU). The purpose of the day is to help raise awareness of the possibilities that the use of the Internet and other information and communication technologies (ICT) can bring to societies and economies, as well as of ways to bridge the digital divide. The 2017 theme “Big Data for Big Impact” focuses on the power of Big Data for development and aims to explore how to turn imperfect, complex, often unstructured data into actionable information in a development context.

Q: Where does most weather occur in the atmosphere? 1027 0

  • 1
    Ionosphere
    Correct
    Wrong
  • 2
    Stratosphere
    Correct
    Wrong
  • 3
    Troposphere
    Correct
    Wrong
  • 4
    Mesosphere
    Correct
    Wrong
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Answer : 3. "Troposphere"
Explanation :

Answer: C) Troposphere Explanation: The troposphere is the lowest layer of the atmosphere and where most clouds are. That means all weather is in the troposphere. Almost all weather occurs in the Troposphere, basically, the lowest layer that goes up to about 10 - 15 kms.

Q: How do you make the number one disappear? 1026 0

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Answer :
Explanation :

Add the letter 'G' to the word 'ONE' and it become's 'Gone' which means disappear.

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