IIT JEE Practice Question and Answer

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Answer : 4. "444 kms"
Explanation :

Answer: D) 444 kms Explanation: 1h ----- 5 kms? ------ 60 kms Time = 12 hrs Relative Speed = 16 + 21 = 37 kmph T = 12 hrs D = S x T = 37 x 12 = 444 kms.

Q: Iodine test is used to detect 5276 0

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    Carbohydrate
    Correct
    Wrong
  • 2
    Fat
    Correct
    Wrong
  • 3
    Protein
    Correct
    Wrong
  • 4
    Cholesterol
    Correct
    Wrong
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Answer : 1. "Carbohydrate"
Explanation :

Answer: A) Carbohydrate Explanation: The iodine test is used to test for the presence of starch i.e, Carbohydrate.

Q: 19 persons do 19 programs in 19 hours . If they take 15 mins interval and then how much time they need to do 52 programs. 5272 0

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    23 hours
    Correct
    Wrong
  • 2
    47 hrs 15 min
    Correct
    Wrong
  • 3
    52 hrs 15 min
    Correct
    Wrong
  • 4
    22 hrs 15 min
    Correct
    Wrong
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Answer : 3. "52 hrs 15 min"
Explanation :

Answer: C) 52 hrs 15 min Explanation: Since they can do 19 programs in 19 hours, Then 52 programs in 52 hours respectively.And a 15 min intervalTotal time they take to do 52 programs is 52 hours 15 minutes.

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Answer : 3. "38000"
Explanation :

Answer: C) 38000 Explanation: Here from the given information, The ratio of investments of Rajeev, Deepu & Shakti is R : D : S = (10000 × 12) : (12000 × 10) : (7200 × 8) = 25 : 25 : 12 Now the Profit = 2 × (72000-10000) = 124000 Share of Rajeev = 124000 x 25/62 = 48000 Profit of Rajeev = 48000 - 10000 = 38000

Q: Which region specializes in diamonds? 5230 0

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    Sub-Saharan Africa
    Correct
    Wrong
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    Central america
    Correct
    Wrong
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    Middle east Europe
    Correct
    Wrong
  • 4
    South America
    Correct
    Wrong
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Answer : 1. "Sub-Saharan Africa"
Explanation :

Answer: A) Sub-Saharan Africa Explanation:

Q: Which layer 4 protocol is used for a Telnet connection? 5229 0

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    UDP
    Correct
    Wrong
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    IP
    Correct
    Wrong
  • 3
    TCP
    Correct
    Wrong
  • 4
    TCP/IP
    Correct
    Wrong
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Answer : 3. "TCP"
Explanation :

Answer: C) TCP Explanation: Telnet uses TCP at layer 4. It uses IP at layer 3. We know that Telnet uses TCP/IP protocol, but in the question, it is asked specifically at layer 4 what is used in Telnet. So it is TCP at layer4 and IP at layer 3.

Q: Marathon is to race as Hibernation is to 5206 0

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    Eat
    Correct
    Wrong
  • 2
    Sleep
    Correct
    Wrong
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    Winter
    Correct
    Wrong
  • 4
    Dream
    Correct
    Wrong
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Answer : 2. "Sleep"
Explanation :

Answer: B) Sleep Explanation: Marathon is to Race as Hibernation is to Sleep.   Marathon is a long race in the similar way Hibernation refers to a long sleep.

Q: Rotate : Energy :: Stop : ? 5203 0

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    Spin
    Correct
    Wrong
  • 2
    Break
    Correct
    Wrong
  • 3
    Inertia
    Correct
    Wrong
  • 4
    None
    Correct
    Wrong
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Answer : 3. "Inertia"
Explanation :

Answer: C) Inertia Explanation: To rotate is to energy to stop is to inertia. From the definition itself we know that inertia is a property by virtue of which a body continues to be in the state of rest or in state of motion. So over here whenever energy is supplied then the body starts to move that is a displacement is there and it is rotating where as whenever the body is stopped an inertia of rest is created.   So, Rotate : Energy :: Stop : Inertia.

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