IIT JEE Practice Question and Answer

Q: World Wide Web is being standard by 5352 1

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    W3C
    Correct
    Wrong
  • 2
    World Wide Web Standard
    Correct
    Wrong
  • 3
    Worldwide corporation
    Correct
    Wrong
  • 4
    World Wide Consortium
    Correct
    Wrong
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Answer : 1. "W3C"
Explanation :

Answer: A) W3C Explanation: World Wide Web is being standard by W3C.   The World Wide Web Consortium (W3C) is an international community where Member organizations, a full-time staff, and the public work together to develop Web standards. Led by Web inventor and Director Tim Berners-Lee and CEO Jeffrey Jaffe, W3C's mission is to lead the Web to its full potential.

Q: Reading of a barometer going down is an indication of 5340 0

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    Storm
    Correct
    Wrong
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    Rainfall
    Correct
    Wrong
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    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).

Q: Correct underlined words if necessary in the following sentence ? Have you been more careful, the accident could have been averted. 5307 0

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    Have you been
    Correct
    Wrong
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    If you have been
    Correct
    Wrong
  • 3
    Had you been
    Correct
    Wrong
  • 4
    If you could have been
    Correct
    Wrong
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Answer : 3. "Had you been"
Explanation :

Answer: C) Had you been Explanation: As the sentence talks about the past it is apt to say. 'Had you been more careful ...'.

Q: The incomes of two persons A and B are in the ratio 3:4. If each saves Rs.100 per month, the ratio of their expenditures is 1:2. Find their incomes  ? 5298 0

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    200, 400
    Correct
    Wrong
  • 2
    100, 300
    Correct
    Wrong
  • 3
    100, 200
    Correct
    Wrong
  • 4
    150, 200
    Correct
    Wrong
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Answer : 4. "150, 200"
Explanation :

Answer: D) 150, 200 Explanation: The incomes of A and B be 3P and 4P. Expenditures = Income - Savings (3P - 100) and (4P - 100) The ratio of their expenditure = 1:2 (3P - 100):(4P - 100) = 1:2 2P = 100 => P = 50 Their incomes = 150, 200

Q: The Computer size was very large in 5294 0

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    Fourth Generation
    Correct
    Wrong
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    Third Generation
    Correct
    Wrong
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    Second Generation
    Correct
    Wrong
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    First Generation
    Correct
    Wrong
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Answer : 4. "First Generation"
Explanation :

Answer: D) First Generation Explanation: The First Generation Computers size was very large.    Since the First generation computers used 1000s of vacuum tubes that required lot of space made them gigantic in size. Single transistor could replace 1000 vacuum tubes and a single IC chip replaced 1000s of transistors made computers smaller and more speedy.   It is obvious that computers developed with more power, reliability, speed and smaller sizes due to the enhancement of technology.

Q: Cup : Lip :: Bird : ? 5282 0

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    Grass
    Correct
    Wrong
  • 2
    Forest
    Correct
    Wrong
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    Beak
    Correct
    Wrong
  • 4
    Bush
    Correct
    Wrong
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Answer : 1. "Grass"
Explanation :

Answer: A) Grass Explanation: Cup is used to drink something with the help of lips. Similarly, birds collect grass with the help of beak to make her nest.   Hence, Cup : Lip :: Bird : Grass.

Q: Odometer is to Mileage as Compass is to 5255 0

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    Direction
    Correct
    Wrong
  • 2
    Niddle
    Correct
    Wrong
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    Speed
    Correct
    Wrong
  • 4
    Altitude
    Correct
    Wrong
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Answer : 1. "Direction"
Explanation :

Answer: A) Direction Explanation: An odometer is an instrument which is used to measure Mileage of a vehicle. In the same way, Compass is an instrument used to know the direction.   Hence, Odometer : Mileage :: Compass :: Direction.

Q: The largest measuring cylinder that can accurately fill 3 tanks of capacity 98, 182 and 266 litres each, is of capacity ? 5249 0

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    7 lts
    Correct
    Wrong
  • 2
    14 lts
    Correct
    Wrong
  • 3
    98 lts
    Correct
    Wrong
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    42 lts
    Correct
    Wrong
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Answer : 2. "14 lts"
Explanation :

Answer: B) 14 lts Explanation: To know the the measuring cylinder that can fill all the given capacities , they must be divisible by the required number. 98,182,266 all are divisible by 14 So  14 litres  is the largest cylinder that can fill all the given cylinders.                                        (or) The other method is take HCF of all given capacities i.e 98, 182 and 266.

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