IIT JEE Practice Question and Answer

Q: In the following number series, one of the numbers is wrong. Find it out? 77, 79, 76, 81, 75, 85 1388 0

  • 1
    79
    Correct
    Wrong
  • 2
    81
    Correct
    Wrong
  • 3
    75
    Correct
    Wrong
  • 4
    85
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "75"
Explanation :

Answer: C) 75 Explanation: Here in the given series, it follows a pattern that   77 + 2 = 79   79  - 3 = 76   76 + 5 = 81   81 -  7 = 74   74 + 11 = 85   Consecutive adding and subtracting of prime numbers.   So the wrong number in the given series is 75.

Q: The United Nations Public Service Day is observed on 1387 0

  • 1
    June 24
    Correct
    Wrong
  • 2
    June 23
    Correct
    Wrong
  • 3
    June 26
    Correct
    Wrong
  • 4
    June 25
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "June 23"
Explanation :

Answer: B) June 23 Explanation: The United Nations Public Service Day is observed every year on June 23 to recognize the work of public servants and to encourage young people to pursue careers in the public sector. The day is also observed to celebrate value and virtue of public service to the community and to raise awareness regarding the contribution of public service in the development of society and honouring the work of public servants.

Q: A train 900 m long is running at a speed of 78 km/hr. If it crosses a tunnel in 1 min, then the length of the tunnel is ? 1387 0

  • 1
    400 m
    Correct
    Wrong
  • 2
    300 m
    Correct
    Wrong
  • 3
    500 m
    Correct
    Wrong
  • 4
    600 m
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "400 m"
Explanation :

Answer: A) 400 m Explanation: Speed = 78 x 5/18 = 65/3 m/sec.Time = 1 min = 60 sec.Let the length of the train be x meters.Then, (900 + x)/60 = 65/3x = 400 m.

Q: Who has been appointed as the new Director General of Police (DGP) of Telangana State Government? 1387 0

  • 1
    M. Mahender Reddy
    Correct
    Wrong
  • 2
    Dharmendra Rao
    Correct
    Wrong
  • 3
    Anurag Sharma
    Correct
    Wrong
  • 4
    V.V. Srinivas Rao
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "M. Mahender Reddy"
Explanation :

Answer: A) M. Mahender Reddy Explanation: M. Mahender Reddy, Commissioner of Hyderabad Police, has been appointed as the new Director General of Police (DGP) of Telangana State. He took charge on 12 November 2017.Reddy succeeded the first DGP of Telangana State Anurag Sharma, who retired from the service on 11 November 2017. Meanwhile, Hyderabad Police Additional Commissioner V.V. Srinivasa Rao has been made in-charge of Hyderabad Commissioner of Police. Anurag Sharma has now appointed as the advisor to Home Department by the Telangana State Government.

Q: The process of bones increasing in width is known as 1386 0

  • 1
    appositional growth
    Correct
    Wrong
  • 2
    closing of the epiphyseal plate
    Correct
    Wrong
  • 3
    concentric growth
    Correct
    Wrong
  • 4
    long bones reaching adult length and width
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "appositional growth"
Explanation :

Answer: A) appositional growth Explanation:

Q: World’s highest railway bridge will be constructed on which river  ? 1386 0

  • 1
    Ganga
    Correct
    Wrong
  • 2
    Chenab
    Correct
    Wrong
  • 3
    Yamuna
    Correct
    Wrong
  • 4
    Kaveri
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "Chenab"
Explanation :

Answer: B) Chenab Explanation: Chenab River in Jammu & Kashmir in next 2 years. Its height is 359 mts i.e 35mts more than the height of Eiffel Tower.

Q: Plants are photosynthetic autotrophs. What does this mean? 1385 0

  • Show AnswerHide Answer
  • Workspace

Answer :
Explanation :

Plants are photosynthetic autotrophs, which means that they are able to produce their own food through the process called photosynthesis.   In photosynthesis, plants use light, water, and carbon dioxide to create glucose, which they convert to cellulose and use to make new cells.   Hence, that is why, Plants are called photosynthetic autotrophs.

Q: Which international Airport Ltd has bagged the National Award for 'Excellence' in Energy Management ? 1385 0

  • 1
    New Delhi
    Correct
    Wrong
  • 2
    Lucknow
    Correct
    Wrong
  • 3
    Hyderabad
    Correct
    Wrong
  • 4
    Mumbai
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "Hyderabad"
Explanation :

Answer: C) Hyderabad Explanation:

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully