IIT JEE Practice Question and Answer

Q: Is yeast a fungus or bacteria? 1583 0

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Answer :
Explanation :

Yeast belongs to members of the Kingdom Fungi.   Yeast are single-celled microorganisms that are classified, along with molds and mushrooms in Fungi family.    Yeasts are evolutionally diverse and are therefore classified into two separate phyla, Ascomycota or sac fungi and Basidiomycota or higher fungi, that together form the subkingdom Dikarya.

Q: In general, which is the cause of a sea breeze? 1583 0

  • 1
    Pressure
    Correct
    Wrong
  • 2
    Specific heat
    Correct
    Wrong
  • 3
    Heat
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
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Answer : 2. "Specific heat"
Explanation :

Answer: B) Specific heat Explanation: The usual cause of sea breeze is the difference in specific heat capacity between land and water Land heats and cools more quickly than water.   What is the cause of a sea breeze? The air over the land is warmed and rises, to a greater temperature than that over the sea. This produces a convection current, with cooler air flowing in from over the sea to replace that rising from the land. At night the land cools more than the sea, so the action reverses to produce a land-breeze, blowing off the land.

Q: Which elements are most abundant in living organisms? 1583 0

  • 1
    oxygen, nitrogen, carbon, hydrogen, sulfur, and phosphorus
    Correct
    Wrong
  • 2
    carbon, potassium, iron, magnesium, hydrogen, and nitrogen
    Correct
    Wrong
  • 3
    hydrogen, carbon, calcium, potassium, oxygen, and phosphorus
    Correct
    Wrong
  • 4
    oxygen, calcium, phosphorus, sodium, hydrogen, and carbon
    Correct
    Wrong
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Answer : 1. "oxygen, nitrogen, carbon, hydrogen, sulfur, and phosphorus"
Explanation :

Answer: A) oxygen, nitrogen, carbon, hydrogen, sulfur, and phosphorus Explanation: Living organisms often contain trace amounts of several elements, but the most abundant ones are oxygen, carbon, hydrogen, nitrogen, calcium, sulphur and phosphorus.

Q: A teacher multiplies 987 by a certain number and obtains 556781 as her answer. If in the answer, both 6 and 7 are wrong but the other digits are correct, then the correct answer will be 1582 0

  • 1
    553681
    Correct
    Wrong
  • 2
    555181
    Correct
    Wrong
  • 3
    556581
    Correct
    Wrong
  • 4
    555681
    Correct
    Wrong
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Answer : 4. "555681"
Explanation :

Answer: D) 555681 Explanation: Given number is 987 = 3 x 7 x 47. So, required number must be divisible by each one of 3, 7, 47. None of the numbers in 553681 and 555181 are divisible by 3. While 556581 is not divisible by 7.Correct answer is 555681.

Q: What is the first step when supervising detainee operations? 1582 0

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Answer :
Explanation :

The first step is to disarm and secure detainees when supervising detainee operations.

Q: What happens during the process of translation? 1582 0

  • 1
    Transfer RNA is made from messenger RNA
    Correct
    Wrong
  • 2
    Copies of DNA molecules are made
    Correct
    Wrong
  • 3
    The cell uses information from messenger RNA to produce proteins
    Correct
    Wrong
  • 4
    Messenger RNA is made from DNA
    Correct
    Wrong
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Answer : 3. "The cell uses information from messenger RNA to produce proteins"
Explanation :

Answer: C) The cell uses information from messenger RNA to produce proteins Explanation: Translation is the process by which a protein is synthesized from the information contained in a molecule of messenger RNA (mRNA). During translation, an mRNA sequence is read using the genetic code, which is a set of rules that defines how an mRNA sequence is to be translated into the 20-letter code of amino acids, which are the building blocks of proteins.   In short, during the process of translation source language text is conveyed to destination language.

Q: Sensitive data is always classified. 1582 0

  • 1
    TRUE
    Correct
    Wrong
  • 2
    FALSE
    Correct
    Wrong
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Answer : 2. "FALSE"
Explanation :

Answer: B) FALSE Explanation: FALSE. Sensitive data is NOT always classified.   Sensitive information is data that must be protected from unauthorized access to safeguard the privacy or security of an individual or organization. There are three main types of sensitive information: 1. Personal information 2. Business information 3. Classified information Data is "Classified" based on the damage that might result from unauthorized disclosure. Some data is Sensitive, but will not necessarily do harm to the country if released publicly - such as PII- which could do harm to individuals if released but not necessarily the country.

Q: Spelling test - find correct spelling : 1581 0

  • 1
    Skillfull
    Correct
    Wrong
  • 2
    Skillfful
    Correct
    Wrong
  • 3
    Skillful
    Correct
    Wrong
  • 4
    Skkillful
    Correct
    Wrong
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Answer : 3. "Skillful"
Explanation :

Answer: C) Skillful Explanation:

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