IIT JEE Practice Question and Answer

Q: Pen is to poet as needle is to 4958 0

  • 1
    Sewing
    Correct
    Wrong
  • 2
    Thread
    Correct
    Wrong
  • 3
    Tailor
    Correct
    Wrong
  • 4
    Button
    Correct
    Wrong
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Answer : 3. "Tailor"
Explanation :

Answer: C) Tailor Explanation: Here Pen is a tool which is used to write and poet uses it. Then, the needle is a tool which is used to stitch and it is used by Tailor. Except tailor, none of the other options is a person to use it.   Hence, Pen : Poet :: Needle : Tailor

Q: Which Word Does Not Belong with the Others 4954 0

  • 1
    VDU
    Correct
    Wrong
  • 2
    Speakers
    Correct
    Wrong
  • 3
    Plotter
    Correct
    Wrong
  • 4
    Joystick
    Correct
    Wrong
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Answer : 4. "Joystick"
Explanation :

Answer: D) Joystick Explanation: Here Joystick is the word doesn't belong with the others. Because Except Joystick all others are Output Devices whereas Joystick is Input Device. VDU - Visual Display Unit - Monitor to display Speakers - Output sound Plotter - used to produce single or multiple colored images.

Q: A man reaches his office 20 min late, if he walks from his home at 3 km per hour and reaches 30 min early if he walks 4 km per hour. How far is his office from his house ? 4954 0

  • 1
    20 km
    Correct
    Wrong
  • 2
    16 km
    Correct
    Wrong
  • 3
    14 km
    Correct
    Wrong
  • 4
    10 km
    Correct
    Wrong
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Answer : 4. "10 km"
Explanation :

Answer: D) 10 km Explanation: Let distance = x km.Time taken at 3 kmph : dist/speed = x/3 = 20 min late.time taken at 4 kmph : x/4 = 30 min earlierdifference between time taken : 30-(-20) = 50 mins = 50/60 hours.x/3- x/4 = 50/60x/12 = 5/6x = 10 km.

Q: SI unit of equivalent conductance 4934 0

  • 1
    ohm/cm
    Correct
    Wrong
  • 2
    Siemens m2/equivalent
    Correct
    Wrong
  • 3
    Siemens/equivalent
    Correct
    Wrong
  • 4
    mho/cm
    Correct
    Wrong
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Answer : 2. "Siemens m2/equivalent"
Explanation :

Answer: B) Siemens m2/equivalent Explanation: Equivalent conductance is defined as the conductance of an electrolyte solution containing one gram equivalent of the electrolyte. It is equal to the product of specific conductance (k) of the solution and the volume (V) of the solution that contains one gram equivalent of the electrolyte.    λ = k x V   Unit of spceific conductance k is Siemens / m. Volume of the solution V is m3 Now, required equivalent conductance unit is Siemens.m2/equivalent .

Q: 56% of 225 + 20% of 150 = ? - 109   Find the value of '?' in the above equation 4925 0

  • 1
    264
    Correct
    Wrong
  • 2
    220
    Correct
    Wrong
  • 3
    241
    Correct
    Wrong
  • 4
    None
    Correct
    Wrong
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Answer : 1. "264"
Explanation :

Answer: A) 264 Explanation: Given 56% of 225 + 20% of 150 = ? - 109 we know that a% of b = b% of a Now, 225% of 56 + 20% of 150 = ? - 109 200% of 56 + 25% of 56 + 20% of 150 = ? - 109 112 + 14 + 30 = ? - 109 ? = 112 + 14 + 30 + 109 ? = 264

Q: egg: fish : : ________ : plant 4924 0

  • 1
    seed
    Correct
    Wrong
  • 2
    stem
    Correct
    Wrong
  • 3
    root
    Correct
    Wrong
  • 4
    leaf
    Correct
    Wrong
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Answer : 1. "seed"
Explanation :

Answer: A) seed Explanation: Fish is from eggs whereas plant is from seeds.

Q: When the European union formed nations began to? 4916 0

  • 1
    eliminate their home governments.
    Correct
    Wrong
  • 2
    abolish many geographic boundaries.
    Correct
    Wrong
  • 3
    create one unified education system.
    Correct
    Wrong
  • 4
    cooperate on law enforcement.
    Correct
    Wrong
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Answer : 4. "cooperate on law enforcement."
Explanation :

Answer: D) cooperate on law enforcement. Explanation: When the European union formed nations began to cooperate on law enforcement. The European Union is set up with the aim of ending the frequent and bloody wars between neighbours, which culminated in the Second World War.   As of 1950, the European Coal and Steel Community begins to unite European countries economically and politically in order to secure lasting peace. The six founding countries are Belgium, France, Germany, Italy, Luxembourg and the Netherlands. The 1950s are dominated by a cold war between east and west.   The historical roots of the European Union lie in the Second World War. Europeans are determined to prevent such killing and destruction from ever happening again.

Q: Reading of a barometer going down is an indication of 4900 0

  • 1
    Storm
    Correct
    Wrong
  • 2
    Rainfall
    Correct
    Wrong
  • 3
    Snow
    Correct
    Wrong
  • 4
    Intense heat
    Correct
    Wrong
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Answer : 2. "Rainfall"
Explanation :

Answer: B) Rainfall Explanation: Barometer is instrument which is used to measure to pressure. A slow downfall of reading suggests a low pressure area is passing in a nearby region, it may rains. If the reading is going down very fast then its an indication of storm (within 5-6 hours).

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