IIT JEE Practice Question and Answer

Q: Tohra is the sacred book of 2972 0

  • 1
    Judaism
    Correct
    Wrong
  • 2
    Confucianism
    Correct
    Wrong
  • 3
    Zoroastrianism
    Correct
    Wrong
  • 4
    Taoism
    Correct
    Wrong
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Answer : 1. "Judaism"
Explanation :

Answer: A) Judaism Explanation:

Q: The main function of a school board is to 3433 0

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    manage public schools in accordance with state and federal law.
    Correct
    Wrong
  • 2
    raise revenue for public schools through local taxes and fees.
    Correct
    Wrong
  • 3
    propose and legislate state laws that affect the public schools.
    Correct
    Wrong
  • 4
    serve as a school’s principals, teachers, and administrators.
    Correct
    Wrong
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Answer : 1. "manage public schools in accordance with state and federal law."
Explanation :

Answer: A) manage public schools in accordance with state and federal law. Explanation: The main function of a school board is to manage public schools in accordance with state and federal law. The functions of the school board of a public school are: • to establish strategic direction and priorities for the school. • to monitor and review school performance and to report on it to the Director-General, parents of students at the school and staff. • to develop, maintain and review curriculum for the school. • to develop and review education policies at the school. • to establish budgetary policies for the school and approve the school budget. • to establish policies for the efficient and effective use of school assets and the management of financial risk. • to develop relationships between the school and the community and between the school and community organisations. • to make recommendations to the Director-General on issue affecting the school and to give effect to the Director-General’s directions. • to encourage parent participation in their children’s learning; and • to exercise any other function given to the board under this Act or any otherTerritory law.

Q: A power that is vested in the president is 1414 0

  • 1
    legally guaranteed by the Supreme Court
    Correct
    Wrong
  • 2
    legally guaranteed by the Constitution
    Correct
    Wrong
  • 3
    subject to approval by the House
    Correct
    Wrong
  • 4
    subject to approval by the Senate
    Correct
    Wrong
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Answer : 2. "legally guaranteed by the Constitution"
Explanation :

Answer: B) legally guaranteed by the Constitution Explanation:

Q: Milk is an example of a 2065 0

  • 1
    Emulsion
    Correct
    Wrong
  • 2
    Solution
    Correct
    Wrong
  • 3
    Gel
    Correct
    Wrong
  • 4
    Suspension
    Correct
    Wrong
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Answer : 1. "Emulsion"
Explanation :

Answer: A) Emulsion Explanation: Milk is an emulsion of oil in water (o/w). Emulsion: A suspension of droplets of one liquid in another. Constituents of milk : The principal constituents of milk are water, fat, proteins, lactose (milk sugar) and minerals (salts). Milk also contains trace amounts of other substances such as pigments, enzymes, vitamins, phospholipids (substances with fatlike properties), and gases.

Q: Atmospheric pressure exerted on earth is due to 1615 0

  • 1
    gravitational pull
    Correct
    Wrong
  • 2
    rotation of earth
    Correct
    Wrong
  • 3
    revolution of earth
    Correct
    Wrong
  • 4
    uneven heating of earth
    Correct
    Wrong
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Answer : 1. "gravitational pull"
Explanation :

Answer: A) gravitational pull Explanation: The atmospheric pressure at the surface of the Earth is due to gravitational pull of the earth and is about 14.7 psi.   That means that the weight of a column of air which has a cross section of 1 square inch and which stretches from the surface of the Earth to space is 14.7 pounds.

Q: Which of the following is biodegradable? 3861 0

  • 1
    Iron nails
    Correct
    Wrong
  • 2
    DDT
    Correct
    Wrong
  • 3
    Silver foil
    Correct
    Wrong
  • 4
    Leather bags
    Correct
    Wrong
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Answer : 4. "Leather bags"
Explanation :

Answer: D) Leather bags Explanation: Biodegradable substances can be broken down into simpler, harmless substances in nature with due course of time by the biological process such as action of microbes. They can be recycled as a part of food chain.   Here, Leather bags are biodegradable.

Q: Callous is the opposite of 1995 0

  • 1
    emotionally hardened
    Correct
    Wrong
  • 2
    insensitive
    Correct
    Wrong
  • 3
    sympathetic
    Correct
    Wrong
  • 4
    Unkind
    Correct
    Wrong
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Answer : 3. "sympathetic"
Explanation :

Answer: C) sympathetic Explanation: A callous person is insensitive or emotionally hardened.   Hence, Callous is the opposite of Sympathetic, kind hearted, sensitive, nice,...

Q: Acceptable noise level for human ear 1687 0

  • 1
    > 85 db
    Correct
    Wrong
  • 2
    = 85 db
    Correct
    Wrong
  • 3
    < 85 db
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 3. "< 85 db"
Explanation :

Answer: C) < 85 db Explanation: Sound intensity or level is measured by a unit called a decibel. An 85 decibel noise level is not a safe standard for the public.   Hence, Acceptable noise level for human ear is less than 85 db.

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