CAT Practice Question and Answer

Q: Which country has successfully launched the world's smallest rocket to carry tiny satellite into orbit? 2006 0

  • 1
    India
    Correct
    Wrong
  • 2
    Russia
    Correct
    Wrong
  • 3
    Japan
    Correct
    Wrong
  • 4
    Australia
    Correct
    Wrong
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Answer : 3. "Japan"
Explanation :

Answer: C) Japan Explanation: Japan's - Japan Aerospace Exploration Agency (JAXA) has successfully launched the world's smallest rocket with the ability to put a tiny satellite into orbit. Rocket -  SS-520 which was pnce failed in 2017 lifted off from the Space Center carrying a microsatellite TRICOM-1R, a three-unit CubeSat weighing about 3 kilograms. The CubeSat will now be used to collect images of the Earth's surface via multiple cameras.

Q: Find the sum of the Arithmetic Series upto 36 terms 2, 5, 8, 11,... 2006 1

  • 1
    3924
    Correct
    Wrong
  • 2
    1962
    Correct
    Wrong
  • 3
    1684
    Correct
    Wrong
  • 4
    1452
    Correct
    Wrong
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Answer : 2. "1962"
Explanation :

Answer: B) 1962 Explanation: Arithmetic Series ::   An Arithmetic Series is a series of numbers in which each term increases by a constant amount.   How to find the sum of the Arithmetic Sequence or Series for the given Series ::   When the series contains a large amount of numbers, its impractical to add manually. You can quickly find the sum of any arithmetic sequence by multiplying the average of the first and last term by the number of terms in the sequence.   That is given by Sn = n(a1 + an)2 Where n = number of terms, a1 = first term, an = last term   Here Last term is given by an = a1 + n-1d where d = common difference   Now given Arithmetic Series is    2, 5, 8, 11,...   Here a1 = 2,  d = 3, n = 36    Now, an= a1 + n - 1d a36= 2 + 36 - 13 = 105 + 2 = 107    Now, Sum to 36 terms is given by   S36 = 36(2 + 107)2 = 36 x 1092 = 39242 = 1962       Therefore, Sum to 36 terms of the series 2, 5, 8, 11,... is 1962.

Q: 18 as a decimal? 2006 0

  • 1
    0.375
    Correct
    Wrong
  • 2
    0.247
    Correct
    Wrong
  • 3
    0.214
    Correct
    Wrong
  • 4
    0.125
    Correct
    Wrong
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Answer : 4. "0.125"
Explanation :

Answer: D) 0.125 Explanation: Here  18 in decimal means 8th part in 1. We know that 110 = 0.1 Then,   18 = ? => ? = 18 x 0.1110= 0.1 x 108= 0.5418= 0.125

Q: Pinaka is a 2006 0

  • 1
    a multi barrel rocket launcher developed by DRDO
    Correct
    Wrong
  • 2
    a rocket launcher developed by France
    Correct
    Wrong
  • 3
    a missile developed by DRDO
    Correct
    Wrong
  • 4
    a missile imported from Russia
    Correct
    Wrong
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Answer : 1. "a multi barrel rocket launcher developed by DRDO"
Explanation :

Answer: A) a multi barrel rocket launcher developed by DRDO Explanation: 1. Pinaka is a multi barrel rocket launcher developed by the Defence Research and Development Organisation (DRDO) for the Indian Army. 2. The system has a maximum range of 40 km for Mark-I and 75 km for Mark-II, and can fire a salvo of 12 rockets in 44 seconds. 3. The system is mounted on a Tatra truck for mobility. 4. Actually, the meaning of Pinaka is Shiv Dhanush.

Q: Study of fishes is called 2006 0

  • 1
    Amphiology
    Correct
    Wrong
  • 2
    Phylumology
    Correct
    Wrong
  • 3
    Zoology
    Correct
    Wrong
  • 4
    Ichthyology
    Correct
    Wrong
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Answer : 4. "Ichthyology"
Explanation :

Answer: D) Ichthyology Explanation: Ichthyology is the branch of biology devoted to the study of fish.   It is also known as Fish science which includes bony fishes (Osteichthyes), cartilaginous fish (Chondrichthyes), and jawless fish (Agnatha).

Q: A train 125 m long passes a man, running at 4 km/hr in the same direction in which the train is going, in 10 seconds. The speed of the train is: 2004 0

  • 1
    49 kmph
    Correct
    Wrong
  • 2
    50 kmph
    Correct
    Wrong
  • 3
    51 kmph
    Correct
    Wrong
  • 4
    52 kmph
    Correct
    Wrong
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Answer : 1. "49 kmph"
Explanation :

Answer: A) 49 kmph Explanation: Speed of the train relative to man = (125/10) m/sec = (25/2) m/sec. [(25/2) x (18/5)] km/hr = 45 km/hr. Let the speed of the train be 'x' km/hr. Then, relative speed = (x - 4) km/hr. x - 4 = 45 => x = 49 km/hr.

Q: Which of the following is a compound sentence? 2004 0

  • 1
    We can go see a movie, or we can get something to eat.
    Correct
    Wrong
  • 2
    When you get there, please remember to call me.
    Correct
    Wrong
  • 3
    Mohan bought some new shoes and wore them to a party.
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 1. "We can go see a movie, or we can get something to eat."
Explanation :

Answer: A) We can go see a movie, or we can get something to eat. Explanation: A compound sentence is a sentence that has at least two independent clauses joined by a comma, semicolon or conjunction. An independent clause is a clause that has a subject and verb and forms a complete thought. Here except option A) other two options dependent.   Hence, A) We can go see a movie, or we can get something to eat is a compound sentence.

Q: Guess the Missing number in the Number Challenge ? 2004 0

  • 1
    8
    Correct
    Wrong
  • 2
    32
    Correct
    Wrong
  • 3
    44
    Correct
    Wrong
  • 4
    64
    Correct
    Wrong
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Answer : 4. "64"
Explanation :

Answer: D) 64 Explanation: The logic in the challenge is  81x6 = 9x6 = 54 144x7=84     Similarly, 64x8 = 8x8 = 64.

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