IIT JEE Practice Question and Answer

Q: 8(6+5) - 10 =? 1414 0

  • 1
    76
    Correct
    Wrong
  • 2
    78
    Correct
    Wrong
  • 3
    80
    Correct
    Wrong
  • 4
    82
    Correct
    Wrong
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Answer : 2. "78"
Explanation :

Answer: B) 78 Explanation: 8(6+5) - 10 = ? ? = 8(11) - 10 ? = 88 - 10 ? = 78.

Q: Which of the following is not a Fixed Cost? 2468 0

  • 1
    Insurance
    Correct
    Wrong
  • 2
    Salaries
    Correct
    Wrong
  • 3
    Depreciation
    Correct
    Wrong
  • 4
    Direct Materials
    Correct
    Wrong
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Answer : 4. "Direct Materials"
Explanation :

Answer: D) Direct Materials Explanation: Direct Materials doesn't come under Fixed Cost because it vary with changes in the activity level of a business. Fixed Cost : A fixed cost is a cost that does not change over the short-term, even if a business experiences changes in its sales volume or other activity levels. It is of some importance to understand the extent and nature of the fixed costs in a business, since a high fixed-cost level requires a business to maintain a high revenue level in order to avoid generating losses. Examples of Fixed Cost are: Insurance, Salaries, Rent, Property Taxes,...

Q: The More You Have, The Less You See. What is it? 1459 0

  • 1
    Light
    Correct
    Wrong
  • 2
    Darkness
    Correct
    Wrong
  • 3
    Sight
    Correct
    Wrong
  • 4
    None
    Correct
    Wrong
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Answer : 2. "Darkness"
Explanation :

Answer: B) Darkness Explanation: The More You Have the Darkness, The Less You See i.e, visible less.

Q: How long is an IPv6 address? 1456 0

  • 1
    128 bytes
    Correct
    Wrong
  • 2
    32 bits
    Correct
    Wrong
  • 3
    128 bits
    Correct
    Wrong
  • 4
    32 bytes
    Correct
    Wrong
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Answer : 3. "128 bits"
Explanation :

Answer: C) 128 bits Explanation: IPv6 - Internet Protocol Version 6. IPv6 addresses have a size of 128 bits. Internet Protocol Version 6 [IPv6] is the successor to the Internet's first addressing infrastructure, Internet Protocol version 4 (IPv4). In contrast to IPv4, which defined an IP address as a 32-bit value, IPv6 address have a size of 128 bits.

Q: Cross Contamination is prevented by 1556 0

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Answer :
Explanation :

Cross Contamination :: Cross Contamination is nothing but a contamination in a cross way i.e, when a bacteria on a kitchen tool transfers to food via direct contact. Two of the most common kitchen tools usually tend to be a knife or a cutting board. However, it is not just bacteria that gets carried from one place to another — it could also be a virus also. Cross Contamination is prevented by the following tips :: 1. Use separate equipment 2. Clean and sanitize all work surfaces 3. Remind employees to wash their hands 4. Purchase prepared food 5. Implement a personal hygiene program.

Q: Which Noble Gas has the highest First Ionization Energy? 1159 0

  • 1
    Neon
    Correct
    Wrong
  • 2
    Helium
    Correct
    Wrong
  • 3
    Argon
    Correct
    Wrong
  • 4
    Xenon
    Correct
    Wrong
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Answer : 2. "Helium"
Explanation :

Answer: B) Helium Explanation: Helium has the highest First Ionization Energy in the Noble Gases group. Ionization Energy :: Ionisation energy is the energy required to remove one mole of electrons from one mole of gaseous atoms. Atoms are more stable when they have full valence shells. Noble Gases have a very stable electron configuration, therefore, they have the highest amount of ionization energy within their periods. It decreases down a family because electrons farther from the nucleus are easier to remove. Ionization Energy levels of Noble Gases group in Descending Order :: He, Ne, Ar, Kr, Xe, Rn

Q: Select the correct statement about the Evolution of Animals. 1831 0

  • 1
    The oldest generally accepted fossils of large animals range in age from 565 to 550 million years old.
    Correct
    Wrong
  • 2
    No animal fossils are found in strata formed before the Cambrian explosion.
    Correct
    Wrong
  • 3
    Approximately half the phyla of living organisms are found in Cambrian sediments.
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
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Answer : 1. "The oldest generally accepted fossils of large animals range in age from 565 to 550 million years old."
Explanation :

Answer: A) The oldest generally accepted fossils of large animals range in age from 565 to 550 million years old. Explanation: The oldest generally accepted fossils of large animals range in age from 565 to 550 million years old.

Q: 100 percent of which number is 20? 1545 0

  • 1
    100
    Correct
    Wrong
  • 2
    500
    Correct
    Wrong
  • 3
    20
    Correct
    Wrong
  • 4
    0
    Correct
    Wrong
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Answer : 3. "20"
Explanation :

Answer: C) 20 Explanation: Let the rquired number be 'P' According to the question, 100 x P100 = 20=> P = 20 x 100100 = 20 Hence, 100 percent of the number 20 is 20.   Now, you can also try for 20 percent of what number is 100 20 x P100 = 100=> P = 100 x 10020 = 500=> P = 500 Hence, 20 percent of the number 500 is 100.

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