IIT JEE Practice Question and Answer

Q: Computer storage units smallest to largest? 2156 0

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Answer :
Explanation :

The smallest unit of data storage in a computer is called Bit (Binary Digit). Half a byte (four bits) is called a Nibble.   1 bit (binary digit) = the value of 0 or 1 8 bits = 1 byte 1024 bytes = 1 kilobyte 1024 kilobytes = 1 megabyte 1024 megabytes = 1 gigabyte 1024 gigabytes = 1 terabyte 1024 terabytes = 1 petabyte   Hence, Computer storage units smallest to largest i.e, in ascending order is  1 bit  <  1 byte  <  1 KB  <  1 MB  <  1 GB  <  1TB  <  1 PB.

Q: Vaunt : Flaunt :: Disparate : ? 5338 0

  • 1
    Similar
    Correct
    Wrong
  • 2
    Homogenous
    Correct
    Wrong
  • 3
    Contrast
    Correct
    Wrong
  • 4
    Alike
    Correct
    Wrong
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Answer : 3. "Contrast"
Explanation :

Answer: C) Contrast Explanation: Vaunt - Vaunt means to boast or to praise about something excessively. Flaunt - Flaunt also means to boast about something or to praise something.   Flaunt is the synonym of the word Vaunt.   Disparate - Disparate means essentially different in its kind or unlike or not able to be compared. Then the required word is the synonym of Disparate.   Here in the given options, Contrast is the only word which is similar in meaning of Disparate.   Hence, Vaunt : Flaunt :: Disparate : Contrast.

Q: What determines the value of an item? 1793 0

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    the capital required to build the factory
    Correct
    Wrong
  • 2
    the unlimited wants of the consumers
    Correct
    Wrong
  • 3
    the resources consumed in production
    Correct
    Wrong
  • 4
    the amount of goods that are produced
    Correct
    Wrong
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Answer : 1. "the capital required to build the factory"
Explanation :

Answer: A) the capital required to build the factory Explanation: Value is the monetary worth of something, in this case, it is an item. In option A, since it is talking about capital which is measured in monetary terms. The value of an item is determined by its quality and its age. Often antiques with good quality are sold in the market with a high value and are sometimes auctioned.

Q: Tilak rides on a cycle to a place at speed of 22 kmph and comes back at a speed of 20 kmph. If the time taken by him in the second case is 36 min. more than that of the first case, what is the total distance travelled by him (in km)? 2175 0

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    132 km
    Correct
    Wrong
  • 2
    264 km
    Correct
    Wrong
  • 3
    134 km
    Correct
    Wrong
  • 4
    236 km
    Correct
    Wrong
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Answer : 2. "264 km"
Explanation :

Answer: B) 264 km Explanation: Let the distance travelled by Tilak in first case or second case = d kms Now, from the given data, d/20 = d/22 + 36 min => d/20 = d/22 + 3/5 hrs => d = 132 km.   Hence, the total distance travelled by him = d + d = 132 + 132 = 264 kms.

Q: What type of compound is Lecithin? 1383 0

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    Sterol
    Correct
    Wrong
  • 2
    Phospholipid
    Correct
    Wrong
  • 3
    Lipoprotein
    Correct
    Wrong
  • 4
    Glycolipid
    Correct
    Wrong
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Answer : 2. "Phospholipid"
Explanation :

Answer: B) Phospholipid Explanation: Lecithin is a Phospholipid type of compounds. The main phospholipids in lecithin from soya and sunflower are phosphatidyl choline, phosphatidyl inositol, phosphatidyl ethanolamine, and phosphatidic acid.

Q: A Caste system is defined as 1520 0

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Answer :
Explanation :

A caste system is a social structure or a class structure in which classes are determined by heredity, that is determined by birth. Loosely, it means that in some societies, if your parents are poor, you’re going to be poor, too. Same goes for being rich if you’re a glass-half-full person.

Q: I jump when i walk and sit when i stand, who am I? 2074 0

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Answer :
Explanation :

Kangaroo.

Q: Which observation proves that a cell is a eukaryote? 3713 0

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    It contains DNA
    Correct
    Wrong
  • 2
    It contains ribosomes
    Correct
    Wrong
  • 3
    It has a cell membrane
    Correct
    Wrong
  • 4
    It has DNA inside a nucleus
    Correct
    Wrong
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Answer : 4. "It has DNA inside a nucleus"
Explanation :

Answer: D) It has DNA inside a nucleus Explanation: Eukaryotic cells all have a nucleus. Eukaryotes are organisms that are multicellular, although there are some examples of single cellular eukaryotes. So eukaryotic cells can be either cell with a nucleus or a eukaryotic organism's cell. The most important feature to judge whether it has nucleus membrane. And for other choices, they are the common features of eukaryote and prokaryote.

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