IIT JEE Practice Question and Answer

Q: What color does yellow and green make? 2035 0

  • 1
    Lime
    Correct
    Wrong
  • 2
    Ocean mist
    Correct
    Wrong
  • 3
    Maroon
    Correct
    Wrong
  • 4
    Tangerine
    Correct
    Wrong
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Answer : 1. "Lime"
Explanation :

Answer: A) Lime Explanation: Yellow and green color mix make a Lime color.   The three primary colors in additive mixing are red, green, and blue. In the absence of color or, when no colors are showing, the result is black. If all three primary colors are showing, the result is white. When red and green combine, the result is yellow. When red and blue combine, the result is magenta. When blue and green combine, the result is cyan.

Q: Where is glucose stored in the body? 2035 0

  • 1
    bones
    Correct
    Wrong
  • 2
    blood
    Correct
    Wrong
  • 3
    organs
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 2. "blood"
Explanation :

Answer: B) blood Explanation: In human body, glucose is stored in blood stream before it is converted to glycogen. Excess glucose is stored in the form of fats. After conversion, glycogen is stored in Muscles and Liver.

Q: Which statement describes the amount of rainfall in grasslands? 2035 0

  • 1
    more than deserts
    Correct
    Wrong
  • 2
    less than forests
    Correct
    Wrong
  • 3
    Both A & B
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 3. "Both A & B"
Explanation :

Answer: C) Both A & B Explanation:

Q: RADAR is used for 2034 0

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    detecting and locating the position of objects such as Aeroplanes
    Correct
    Wrong
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    locating submerged submarines
    Correct
    Wrong
  • 3
    locating geostationary satellites
    Correct
    Wrong
  • 4
    receiving a signals in a radio receiver
    Correct
    Wrong
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Answer : 1. "detecting and locating the position of objects such as Aeroplanes"
Explanation :

Answer: A) detecting and locating the position of objects such as Aeroplanes Explanation: RADAR - RAdio Detection And Ranging. A radar system consists of a transmitter producing electromagnetic waves in the radio or microwaves domain, a transmitting antenna, a receiving antenna (often the same antenna is used for transmitting and receiving) and a receiver and processor to determine properties of the objects.    Radar is an object-detection system that uses radio waves to determine the range, angle, or velocity of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain.   Radio waves from the transmitter reflect off the object and return to the receiver, giving information about the object's location and speed.

Q: Which of the following is a non metal that remains liquid at room temperature  ? 2033 0

  • 1
    Chlorine
    Correct
    Wrong
  • 2
    Phosphorous
    Correct
    Wrong
  • 3
    Bromine
    Correct
    Wrong
  • 4
    Helium
    Correct
    Wrong
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Answer : 3. "Bromine"
Explanation :

Answer: C) Bromine Explanation:

Q: To what kingdom do common bacteria belong 2033 0

  • 1
    Archaea
    Correct
    Wrong
  • 2
    Protista
    Correct
    Wrong
  • 3
    Eubacteria
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
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Answer : 3. "Eubacteria"
Explanation :

Answer: C) Eubacteria Explanation: There are two kingdoms of bacteria. They are 1. Eubacteria  and  2. Archaea   The members of these two kingdoms appear similar in shape and appearance, even under the extreme magnification of the electron microscope . However, they are very different from each other in a number of molecular and biochemical aspects. It is these differences that have resulted in the microorganisms being grouped into separate kingdoms.   For example, eubacteria contain the rigid, stress-bearing network known as the peptidoglycan . The only exceptions are the bacteria from the genera Mycoplasma and Chlamydia. Archaebacteria do not contain peptidoglycan. Instead, they contain a different structure that is called pseudomurein.   The common bacteria belongs to Eubacteria kingdom.

Q: In Cricket the two sets of wickets are 2033 0

  • 1
    22 yards apart
    Correct
    Wrong
  • 2
    24 yards apart
    Correct
    Wrong
  • 3
    20 yards apart
    Correct
    Wrong
  • 4
    21 yards apart
    Correct
    Wrong
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Answer : 1. "22 yards apart"
Explanation :

Answer: A) 22 yards apart Explanation: According to the rules and regulations of cricket, the height of the stumps must be of 28 inches or 71.12 cms. The total distance between the off stump and leg stump should be 9 inches or 22.86 cms. 1. Width and pitching. Two sets of wickets shall be pitched opposite and parallel to each other at a distance of 22 yards/20.12 meters.

Q: Kalyan purchased a Maruti van for Rs. 1,96,000 and the rate of depreciation is 14(2/7) % per annum. Find the value of the van after two years ? 2032 0

  • 1
    Rs. 1,24,000
    Correct
    Wrong
  • 2
    Rs. 1,44,000
    Correct
    Wrong
  • 3
    Rs. 1,32,000
    Correct
    Wrong
  • 4
    Rs. 1,62,000
    Correct
    Wrong
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Answer : 2. "Rs. 1,44,000"
Explanation :

Answer: B) Rs. 1,44,000 Explanation: Value of Maruti Van, V1 = Rs. 1,96,000Rate of depreciation, r = 14(2/7)% = 100/7%; Time, t = 2 yearsLet V2 is the value after depreciation. V2 = V11 - r100tV2 = 196001 - 10071002 V2 = 196000(6/7)(6/7) V2 = (196000x36)/49 = Rs. 1,44,000.

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