CAT Practice Question and Answer

Q: World’s highest railway bridge will be constructed on which river  ? 1648 0

  • 1
    Ganga
    Correct
    Wrong
  • 2
    Chenab
    Correct
    Wrong
  • 3
    Yamuna
    Correct
    Wrong
  • 4
    Kaveri
    Correct
    Wrong
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Answer : 2. "Chenab"
Explanation :

Answer: B) Chenab Explanation: Chenab River in Jammu & Kashmir in next 2 years. Its height is 359 mts i.e 35mts more than the height of Eiffel Tower.

Q: "World Fisheries Day" is observed on _____ ? 1648 0

  • 1
    21st Nov
    Correct
    Wrong
  • 2
    11th Dec
    Correct
    Wrong
  • 3
    10th Oct
    Correct
    Wrong
  • 4
    29th Sep
    Correct
    Wrong
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Answer : 1. "21st Nov"
Explanation :

Answer: A) 21st Nov Explanation:

Q: Nullification Meaning in Government? 1647 0

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Answer :
Explanation :

Nullification is the legal theory that a state has the right to nullify (invalidate) any federal law that it deems unconstitutional So far, there have not been any situations where this tactic has actually held up, though. In each case, nullification has failed.

Q: What is the minimum period of time for which one can open an FD(Fixed Deposit) account ? 1646 0

  • 1
    15 days
    Correct
    Wrong
  • 2
    6 months
    Correct
    Wrong
  • 3
    7 days
    Correct
    Wrong
  • 4
    1 year
    Correct
    Wrong
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Answer : 3. "7 days"
Explanation :

Answer: C) 7 days Explanation:

Q: Uma sold an article for 3400 and got a profit of 25%. If he had sold the article for Rs. 3265. How much profit% would Uma have got ? 1645 0

  • 1
    22%
    Correct
    Wrong
  • 2
    27%
    Correct
    Wrong
  • 3
    20%
    Correct
    Wrong
  • 4
    18%
    Correct
    Wrong
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Answer : 3. "20%"
Explanation :

Answer: C) 20% Explanation: Given       125% ---- 3400 => 100% ---- ? => ? = 3400x100/125 = 2720 => Cost price of the article = Rs. 2720 Profit when article sold at Rs. 3265 = 3265 - 2720 = 545 Hence, Profit% = Gain x 100/cost price => P% = 545 x 100/2720 => P% = 20%

Q: Which ministry has started the exercise to revise base year to 2017 - 2018 for computation of wholesale inflation? 1644 0

  • 1
    Ministry of Commerce and Industry
    Correct
    Wrong
  • 2
    Ministry of Finance
    Correct
    Wrong
  • 3
    Ministry of Corporate Affairs
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
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Answer : 1. "Ministry of Commerce and Industry"
Explanation :

Answer: A) Ministry of Commerce and Industry Explanation: The India's commerce and industry ministry has started the exercise to revise base year to 2017-18 for computation of wholesale inflation with a view to present more realistic picture of the price situation   In May last year, the government revised the base year for WPI-based inflation to 2011-12 to give a better indication of changes in prices of commodities.   The new index, with 2017-18, is expected to have new items, which would provide a more realistic picture of price rise and its impact on people.   Most of the additions could be in the manufactured products category. Currently, the index has a total of 697 items, including primary articles, fuel and power and manufactured products.

Q: What is the bond order of O2? 1641 0

  • 1
    1.5
    Correct
    Wrong
  • 2
    2
    Correct
    Wrong
  • 3
    2.5
    Correct
    Wrong
  • 4
    1
    Correct
    Wrong
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Answer : 2. "2"
Explanation :

Answer: B) 2 Explanation: The number of bonds between a pair of atoms is called the bond order. Bond orders can be calculated from Lewis structures, which are the heart of the valence-bond model. Oxygen, for example, has a bond order of two. When there is more than one Lewis structure for a molecule, the bond order is an average of these structures. The bond order in sulfur dioxide, for example, is 1.5  the average of an S-O single bond in one Lewis structure and an S=O double bond in the other. In molecular orbital theory, we calculate bond orders by assuming that two electrons in a bonding molecular orbital contribute one net bond and that two electrons in an antibonding molecular orbital cancel the effect of one bond. We can calculate the bond order in the O2 molecule by noting that there are eight valence electrons in bonding molecular orbitals and four valence electrons in antibonding molecular orbitals in the electron configuration of this molecule. Thus, the bond order is two.

Q: Two parallel chords on the same side of the centre of a circle are 5 cm apart. If the chords are 20 and 28 cm long, what is the radius of the circle? 1640 0

  • 1
    14.69 cm
    Correct
    Wrong
  • 2
    15.69 cm
    Correct
    Wrong
  • 3
    18.65 cm
    Correct
    Wrong
  • 4
    16.42 cm
    Correct
    Wrong
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Answer : 2. "15.69 cm"
Explanation :

Answer: B) 15.69 cm Explanation: Draw the two chords as shown in the figure. Let O be the center of the circle. Draw OC perpendicular to both chords. That divides the two chords in half.So CD = 10 and AB = 14. Draw radii OA and OD, both equal to radius r.We are given that BC = 5, the distance between the two chords. LetOB = x. We use the Pythagorean theorem on right triangle ABO AO² = AB² + OB² r² = 14² + x² We use the Pythagorean theorem on right triangle DCO DO² = CD² + OC² We see that OC = OB+BC = x+5, so r² = 10² + (x+5)² So we have a system of two equations: r² = 14² + x² r² = 10² + (x+5)² Since both left sides equal r², set the right sidesequal to each other. 14² + x² = 10² + (x+5)² 196 + x² = 100 + x² + 10x + 25 196 = 125 + 10x 71 = 10x 7.1 = x r² = 14² + x² r² = 196 + (7.1)² r² = 196 + 50.41 r² = 246.41 r = √246.41 r = 15.69745202 cm

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