IIT JEE Practice Question and Answer

Q: Movement of cell against concentration gradient is called 3443 0

  • 1
    active transport
    Correct
    Wrong
  • 2
    diffusion
    Correct
    Wrong
  • 3
    osmosis
    Correct
    Wrong
  • 4
    passive transport
    Correct
    Wrong
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Answer : 1. "active transport"
Explanation :

Answer: A) active transport Explanation: The only transport method that can move species against their concentration gradient i.e, from low to high concentration is called Active transport.   Facilitated diffusion only moves species down their concentration gradient i.e, from high to low concentration.

Q: The main function of a school board is to 3442 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: What is the value of P in the following Equation ?  192.5 × 19p = 197 3438 1

  • 1
    3.9
    Correct
    Wrong
  • 2
    4.1
    Correct
    Wrong
  • 3
    3.7
    Correct
    Wrong
  • 4
    4.5
    Correct
    Wrong
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Answer : 4. "4.5"
Explanation :

Answer: D) 4.5 Explanation: Given equation is     192.5 ×19p = 197    Here it is in the form of am × an = am+n    Here m = 2.5 , n = p, m+n = 7  => 2.5 + p = 7   => p = 7 - 2.5  => p = 4.5

Q: Fumble is to Finesse as Malign is to 3436 0

  • 1
    Slander
    Correct
    Wrong
  • 2
    Extol
    Correct
    Wrong
  • 3
    Criticize
    Correct
    Wrong
  • 4
    Assurance
    Correct
    Wrong
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Answer : 2. "Extol"
Explanation :

Answer: B) Extol Explanation: Fumble means grope, mishandle, drop, mistake, blunder, bungle. Finesse means skill, grace, elegance, assurance, diplomacy, discretion. So, they are opposites.   Similarly, Malign means slander or criticize. Extol means being kind or good-natured. A person without finesse often fumbles. A person without extol in his heart often maligns. Extol means praise or exalt, benevolence

Q: A man spend Rs. 810 in buying trouser at Rs. 70 each and shirt at Rs. 30 each. What will be the ratio of trouser and shirt when the maximum number of trouser is purchased ? 3432 0

  • 1
    1:3
    Correct
    Wrong
  • 2
    2:1
    Correct
    Wrong
  • 3
    3:2
    Correct
    Wrong
  • 4
    2:3
    Correct
    Wrong
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Answer : 3. "3:2"
Explanation :

Answer: C) 3:2 Explanation: Let us assume S as number of shirts and T as number of trousersGiven that each trouser cost = Rs.70 and that of shirt = Rs.30Therefore, 70 T + 30 S = 810=> 7T + 3S = 81......(1)T = ( 81 - 3S )/7 We need to find the least value of S which will make (81 - 3S) divisible by 7 to get maximum value of TSimplifying by taking 3 as common factor i.e, 3(27-S) / 7In the above equation least value of S as 6 so that 27- 3S becomes divisible by 7 Hence T = (81-3xS)/7 = (81-3x6)/7 = 63/7 = 9 Hence for S, put T in eq(1), we getS = 81-7(9)/3 = 81-63 / 3 = 18/3 = 6.The ratio of T:S = 9:6 = 3:2.

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Answer :
Explanation :

They walked and did this. It was never specified that the boat was at sea. Since this logic is observed by them to tackle situation.

Q: In a race of 1000 m, A can beat by 100 m, in a race of 800m, B can beat C by 100m. By how many meters will A beat C in a race of 600 m ? 3427 0

  • 1
    127.5 m
    Correct
    Wrong
  • 2
    254 m
    Correct
    Wrong
  • 3
    184 m
    Correct
    Wrong
  • 4
    212 m
    Correct
    Wrong
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Answer : 1. "127.5 m"
Explanation :

Answer: A) 127.5 m Explanation: When A runs 1000 m, B runs 900 m and when B runs 800 m, C runs 700 m. When B runs 900 m, distance that C runs = (900 x 700)/800 = 6300/8 = 787.5 m. In a race of 1000 m, A beats C by (1000 - 787.5) = 212.5 m to C. In a race of 600 m, the number of meters by which A beats C = (600 x 212.5)/1000 = 127.5 m.

Q: Which of the following statements about Australian football is TRUE? 3425 0

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    Goals are scored by kicking the ball through goal posts.
    Correct
    Wrong
  • 2
    Each team has a number of set plays for both offense and defense.
    Correct
    Wrong
  • 3
    Constant movement of the ball is similar to baseball.
    Correct
    Wrong
  • 4
    The players tend to wear a large amount of padding.
    Correct
    Wrong
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Answer : 1. "Goals are scored by kicking the ball through goal posts."
Explanation :

Answer: A) Goals are scored by kicking the ball through goal posts. Explanation:

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