CAT Practice Question and Answer

Q: Fuse Wire is Made of? 1894 0

  • 1
    an alloy of Tin and Lead
    Correct
    Wrong
  • 2
    Nickel
    Correct
    Wrong
  • 3
    Copper
    Correct
    Wrong
  • 4
    an alloy of Nickel and Lead
    Correct
    Wrong
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Answer : 1. "an alloy of Tin and Lead"
Explanation :

Answer: A) an alloy of Tin and Lead Explanation: Fuse Wire is Made of an alloy of Tin and Lead.   If too high a current flows, the element rises to a higher temperature and either directly melts, or else melts a soldered joint within the fuse, opening the circuit. Thefuse element is made of an alloy of Tin and Lead to provide stable and predictable characteristics.

Q: India's first amphibious bus project has been launched by which state government ? 1893 0

  • 1
    Telangana
    Correct
    Wrong
  • 2
    Assam
    Correct
    Wrong
  • 3
    Punjab
    Correct
    Wrong
  • 4
    Gujarat
    Correct
    Wrong
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Answer : 3. "Punjab"
Explanation :

Answer: C) Punjab Explanation:

Q: Which revolutionary died after a 64 days fast in jail? 1893 0

  • 1
    Jatin Das
    Correct
    Wrong
  • 2
    Pulin Das
    Correct
    Wrong
  • 3
    Subhash Chandra bose
    Correct
    Wrong
  • 4
    Both A & B
    Correct
    Wrong
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Answer : 1. "Jatin Das"
Explanation :

Answer: A) Jatin Das Explanation: Jatindra Nath Das, also known as Jatin Das, was a revolutionary and Independence activist. He embraced death in Lahore jail after fasting for 64 days in 1929 at the age of 24 yrs.

Q: Who among the following is set to become the youngest-ever "Messenger of Peace," for 'United Nations' ? 1892 0

  • 1
    Rashi Anand
    Correct
    Wrong
  • 2
    Shikha Patra
    Correct
    Wrong
  • 3
    Bedadyuti Jha
    Correct
    Wrong
  • 4
    Malala Yousafzai
    Correct
    Wrong
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Answer : 4. "Malala Yousafzai"
Explanation :

Answer: D) Malala Yousafzai Explanation:

Q: A single pipe of diameter x has to be replaced by six pipes of diameters 12 cm each. The pipes are used to covey some liquid in a laboratory. If the speed/flow of the liquid is maintained the same then the value of x is ? 1891 0

  • 1
    14.69 cm
    Correct
    Wrong
  • 2
    29.39 cm
    Correct
    Wrong
  • 3
    18.65 cm
    Correct
    Wrong
  • 4
    22.21 cm
    Correct
    Wrong
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Answer : 2. "29.39 cm"
Explanation :

Answer: B) 29.39 cm Explanation: Volume of water flowing through 1 pipe of diameter x = Volume discharged by 6 pipes of diameter 12 cms.   As speed is same, area of cross sections should be same.    Area of bigger pipe of diameter x = Total area of 6 smaller pipes of diameter 12  i.e πR2 = 6πR12    Here R = R and R1 = 12/2 = 6    ⇒R2 = 6×6×6    R = 14.696    => D = X = 14.696 * 2 = 29.3938 cm.

Q: A certain job was assigned to a group of women to do it in 20 days. But 12 women did not turn up for the job and the remaining did the job in 32 days. The original number of women in the group was? 1891 0

  • 1
    36
    Correct
    Wrong
  • 2
    32
    Correct
    Wrong
  • 3
    22
    Correct
    Wrong
  • 4
    28
    Correct
    Wrong
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Answer : 2. "32"
Explanation :

Answer: B) 32 Explanation: Let the total women in the group be 'W' Then according to the given data,  W x 20 = (W-12) x 32  => W = 32  Therefore, the total number of women in the group = 32

Q: (3x + 2) (2x - 5) = ax² + kx + n. What is the value of  a - n + k ? 1891 0

  • 1
    4
    Correct
    Wrong
  • 2
    1
    Correct
    Wrong
  • 3
    5
    Correct
    Wrong
  • 4
    3
    Correct
    Wrong
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Answer : 3. "5"
Explanation :

Answer: C) 5 Explanation: (3x + 2) (2x - 5) = ax2+kx+n ...............(1)   But (3x + 2)(2x - 5) = 6x2-11x-10........(2)   so by comparing (1) & (2),   we get a= 6, k= -11 , n= -10   (a - n + k) = 6 + 10 - 11 = 5.

Q: The simple interest on a sum of money will be Rs.600 after 10 years. If the principal is trebled after 5 years what will be the total interest at the end of the tenth year ? 1890 0

  • 1
    Rs. 1100
    Correct
    Wrong
  • 2
    Rs. 1200
    Correct
    Wrong
  • 3
    Rs. 1000
    Correct
    Wrong
  • 4
    Rs. 1840
    Correct
    Wrong
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Answer : 2. "Rs. 1200"
Explanation :

Answer: B) Rs. 1200 Explanation: P --- 10 ----- 600    P --- 5 ----- 300 3P --- 5 ----- 900                __________                   1200

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