IIT JEE Practice Question and Answer

Q: The book " The Vijay Mallya Story " has been written by _____ 2217 0

  • 1
    Vijay Mallya
    Correct
    Wrong
  • 2
    Gopinath
    Correct
    Wrong
  • 3
    Giriprakash
    Correct
    Wrong
  • 4
    Siddharth Mallya
    Correct
    Wrong
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Answer : 3. "Giriprakash"
Explanation :

Answer: C) Giriprakash Explanation:

Q: The shortest book in number of words? 2217 0

  • 1
    John
    Correct
    Wrong
  • 2
    Jude
    Correct
    Wrong
  • 3
    Obadiah
    Correct
    Wrong
  • 4
    Philemon
    Correct
    Wrong
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Answer : 1. "John"
Explanation :

Answer: A) John Explanation:

Q: In a class there are certain no. of boys and girls. If 15 girls are absent then no. of boys will be twice that of girls. If 45 boys are absent then girls strength will be 5 times that of boys. Find number of boys actually present ? 2217 0

  • 1
    40
    Correct
    Wrong
  • 2
    50
    Correct
    Wrong
  • 3
    55
    Correct
    Wrong
  • 4
    35
    Correct
    Wrong
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Answer : 2. "50"
Explanation :

Answer: B) 50 Explanation: 15 girls are absent => b = 2(g-15)...... eqn...(1) 45 boys are absent => g - 15 = 5(b-45).....eqn...(2) => g = 5(b-45) + 15 => b = 2((5(b-45)+15)-15) => b = 2(5b - 225 + 15 - 15) => b = 2(5b-225) => b = 10b - 450 => 9b = 450 => b = 50 so from equation(2) g - 15 = 5(b - 45) => g - 15 = 5(50-45) => g - 15 = 5(5) => g = 25 + 15 => g = 40 Therefore, the number of boys = 50 and girls = 40

Q: What part of a check is the least important? 2216 0

  • 1
    Memo line
    Correct
    Wrong
  • 2
    The check number
    Correct
    Wrong
  • 3
    Routing number
    Correct
    Wrong
  • 4
    Signature line
    Correct
    Wrong
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Answer : 1. "Memo line"
Explanation :

Answer: A) Memo line Explanation: The parts of a check are :   1. Name & Address 2. Date 3. Pay to the order of 4. Written amount 5. Numeric amount box 6. For or Memo line  7. Signature line 8. Check number 9. Account number 10. Bank name etc...    Hence, the Memo line which describes the purpose of the check is of least important in all the parts of a check.

Q: How many balls? Number of balls in the figure... 2214 0

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Answer :
Explanation :

You have to actually count all the balls in the pyramid.Simple way is to count the balls in each level. So lower most level lets say 1st level has 4 x 4 balls; i.e. 16 ballsSimilarly 2nd level has 3 x 3 balls; i.e. 9 balls.3rd level has 2 x 2 balls; i.e. 4 balls.The top most level has just 1 ball. So the total number of balls is 16+9+4+1 = 30.   So the image has 30 Balls in all.

Q: Showing a man a woman said, "His brother's father is the only son of my grandfather". How is the woman related to the man? 2213 0

  • 1
    Sister
    Correct
    Wrong
  • 2
    Aunt
    Correct
    Wrong
  • 3
    Sister-in-law
    Correct
    Wrong
  • 4
    Daughter-in-law
    Correct
    Wrong
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Answer : 1. "Sister"
Explanation :

Answer: A) Sister Explanation: The man's brother's father means his father is the only son of woman's grandfather => grandfather to the man also => Woman and the man are brother and sisters.

Q: What is a stub network? 2212 0

  • 1
    A network with only one entry and no exit point.
    Correct
    Wrong
  • 2
    A network that has only one entry and exit point.
    Correct
    Wrong
  • 3
    A network with more than one exit point.
    Correct
    Wrong
  • 4
    A network with more than one exit and entry point.
    Correct
    Wrong
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Answer : 2. "A network that has only one entry and exit point."
Explanation :

Answer: B) A network that has only one entry and exit point. Explanation: A stub network has only one default path to non-local hosts and no outside network knowledge. Non-local stub network traffic uses a single logical path when traveling in and out of the network.   Stub networks are essentially local area networks (LAN) that either do not connect to the outside and relay data packets internally or are dead-end LANs that know of only one network exit. Stub networks may have multiple connections but use one path to single points of destination.   Hence, a stub network is a network that has only one entry and exit point.

Q: A Step-Up Transformer Increases 2210 0

  • 1
    Power
    Correct
    Wrong
  • 2
    Current
    Correct
    Wrong
  • 3
    Frequency
    Correct
    Wrong
  • 4
    Voltage
    Correct
    Wrong
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Answer : 4. "Voltage"
Explanation :

Answer: D) Voltage Explanation: A transformer that increases voltage from primary to secondary (more secondary winding turns than primary winding turns) is called a Step-Up Transformer. Conversely, a transformer designed to do just the opposite is called a Step-Down Transformer.

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