IIT JEE Practice Question and Answer

Q: What is consumption disease in the 19th century? 1269 0

  • 1
    Tuberculosis
    Correct
    Wrong
  • 2
    Paralysis
    Correct
    Wrong
  • 3
    Plague
    Correct
    Wrong
  • 4
    Cholera
    Correct
    Wrong
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Answer : 1. "Tuberculosis"
Explanation :

Answer: A) Tuberculosis Explanation: Tuberculosis (TB) was the leading cause of death in the United States and one of the most feared diseases in the world during the 19th and early 20th centuries. Formerly known as Consumption diseases because many types of lung diseases were lumped under the term 'consumption'. Lung cancer and bronchitis were examples.

Q: Israel’s Rafael Defense Systems ltd has formed a joint venture with ________ to produce anti-tank guided missiles for the Indian armed forces. 1267 0

  • 1
    Goa Shipyard
    Correct
    Wrong
  • 2
    Hindustan Aeronautics Limited
    Correct
    Wrong
  • 3
    Kalyani Group
    Correct
    Wrong
  • 4
    Hindustan Aeronautics Limited
    Correct
    Wrong
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Answer : 3. "Kalyani Group"
Explanation :

Answer: C) Kalyani Group Explanation:

Q: Find the regular polygon whose interior angel is 150 more than exterior angle. note the total sum of interior and exterior angle should be 180 at one point ? 1267 0

  • 1
    12
    Correct
    Wrong
  • 2
    24
    Correct
    Wrong
  • 3
    36
    Correct
    Wrong
  • 4
    6
    Correct
    Wrong
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Answer : 2. "24"
Explanation :

Answer: B) 24 Explanation: Sum of Interior angle is 180 .and it is given that interior angle is 150 more than exterior,so let exterior angle is x then interior will be x+150 now , interior + exterior =180x+150+x=180x=15 now , number of sides of polygon = 360 / exterior anglen = 360 / 15n = 24

Q: The Human Resource Development Ministry and the External Affairs Ministry launched an online verification portal ___________ to make the document verification process easier. 1265 0

  • 1
    e-bharat
    Correct
    Wrong
  • 2
    e-sanad
    Correct
    Wrong
  • 3
    e-foriegn
    Correct
    Wrong
  • 4
    e-verify
    Correct
    Wrong
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Answer : 2. "e-sanad"
Explanation :

Answer: B) e-sanad Explanation: The Human Resource Development Ministry and the External Affairs Ministry launched an online verification portal to make the document verification process easier for students who planning to study abroad. The Central Board of Secondary Education’s (CBSE) academic repository of degrees and certificates “Parinam Manjusha” was also involved in the project of creating “eSanad”.

Q: Find the lowest 4-digit number which when divided by 3, 4 or 5 leaves a remainder of 2 in each case ? 1264 0

  • 1
    1020
    Correct
    Wrong
  • 2
    1040
    Correct
    Wrong
  • 3
    1060
    Correct
    Wrong
  • 4
    1022
    Correct
    Wrong
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Answer : 4. "1022"
Explanation :

Answer: D) 1022 Explanation: Lowest 4-digit number is 1000.LCM of 3, 4 and 5 is 60.Dividing 1000 by 60, we get the remainder 40. Thus, the lowest 4-digit number that exactly divisible by 3, 4 and 5 is 1000 + (60 - 40) = 1020.Now, add the remainder 2 that's required. Thus, the answer is 1022.

Q: In a slip test, K got the 15th rank and he was 44th from the bottom of the list of passed students. 4 students did not take up the slip test and 3 students were failed. What is the total strenght of the class ? 1263 0

  • 1
    63
    Correct
    Wrong
  • 2
    62
    Correct
    Wrong
  • 3
    64
    Correct
    Wrong
  • 4
    65
    Correct
    Wrong
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Answer : 4. "65"
Explanation :

Answer: D) 65 Explanation: Total strength of the class is given by 15 + 44 + 4 + 3 - 1 = 65

Q: A tap can fill a tank in 6 hours. After half the tank is filled three more similar taps are opened. What is the total time taken to fill the tank completely ? 1263 0

  • 1
    4 hrs 15 min
    Correct
    Wrong
  • 2
    3 hrs 24 min
    Correct
    Wrong
  • 3
    4 hrs 51 min
    Correct
    Wrong
  • 4
    3 hrs 45 min
    Correct
    Wrong
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Answer : 4. "3 hrs 45 min"
Explanation :

Answer: D) 3 hrs 45 min Explanation: Time taken by one tap to fill half of the tank = 3 hrs. Part filled by the taps in 1 hour = 4 x 1/6 = 2/3 Remaining part = 1 - 1/2 = 1/2 2/3 : 1/2 :: 1 : p p = 1/2 x 1 x 3/2 = 3/4 hrs. i.e., 45 min So, total time taken = 3 hrs 45 min.

Q: When was Barb Wire patented 1261 0

  • 1
    1898
    Correct
    Wrong
  • 2
    1868
    Correct
    Wrong
  • 3
    1874
    Correct
    Wrong
  • 4
    1866
    Correct
    Wrong
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Answer : 3. "1874"
Explanation :

Answer: C) 1874 Explanation: Joseph F. Glidden - Father of Barbed Wire. Glidden was born in New York in 1812. He invented Barbed Wire in 1873 and was granted the patent on Nov. 24, 1874. After a three year battle over the patent, which he eventually won received a patent for the modern invention in 1874 after he made his own modifications to previous versions.

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