CAT Practice Question and Answer

Q: Word length of a personal computer is 2351 0

  • 1
    32 bit
    Correct
    Wrong
  • 2
    16 bit
    Correct
    Wrong
  • 3
    8 bit
    Correct
    Wrong
  • 4
    4 bit
    Correct
    Wrong
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Answer : 3. "8 bit"
Explanation :

Answer: C) 8 bit Explanation: Word length refers to the number of bits processed by a computer's CPU in one go. These days, typically 32 bits or 64 bits are used. Data bus size, instruction size, address size are usually multiples of the word size.

Q: The brain of any computer system is 2159 1

  • 1
    CPU
    Correct
    Wrong
  • 2
    Memory
    Correct
    Wrong
  • 3
    Control
    Correct
    Wrong
  • 4
    ALU
    Correct
    Wrong
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Answer : 1. "CPU"
Explanation :

Answer: A) CPU Explanation: Central Processing Unit (CPU) is the brain of any computer system.

Q: Storage capacity of magnetic disk depends on 4647 2

  • 1
    disk pack in disk surface
    Correct
    Wrong
  • 2
    tracks per inch of surface
    Correct
    Wrong
  • 3
    bits per inch of tracks
    Correct
    Wrong
  • 4
    All of the above
    Correct
    Wrong
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Answer : 4. "All of the above"
Explanation :

Answer: D) All of the above Explanation: Magnetic disk is a kind of data storage device. Storage capacity of magnetic disk depends on  1. tracks per inch of surface 2. bits per inch of tracks 3. disk pack in disk surface   It can be shown as ::

Q: In a class 60% of the students pass in English and 45% pass in Hindi. If 25% of them pass in both subjects, what percentage of the students fail in both the subjects? 2682 1

  • 1
    20%
    Correct
    Wrong
  • 2
    25%
    Correct
    Wrong
  • 3
    30%
    Correct
    Wrong
  • 4
    15%
    Correct
    Wrong
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Answer : 1. "20%"
Explanation :

Answer: A) 20% Explanation: Percentage of students passed in English = 60% Percentage of students passed in Hindi = 45% Percentage of students passed in both subjects = 25% ATQ, Percentage of students passed in only English = 60 - 25 = 35% Percentage of students passed in only Hindi = 45 - 25 = 20% Therefore, Percentage of students failed = 100 - (35 + 25 + 20) = 100 - 80 = 20%.

Q: Which mirror is used as rear view mirror in vehicles? 6951 0

  • 1
    Concave
    Correct
    Wrong
  • 2
    Plane
    Correct
    Wrong
  • 3
    Convex
    Correct
    Wrong
  • 4
    Any of the above
    Correct
    Wrong
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Answer : 3. "Convex"
Explanation :

Answer: C) Convex Explanation: Convex mirror is used as rear view mirror in vehicles. Because the image is smaller, more image can fit onto the mirror, so a convex mirror provides for a larger field of view than a plane mirror. This is why they are useful.

Q: What was the day of the week on 17th June, 1998 ? 4998 7

  • 1
    Monday
    Correct
    Wrong
  • 2
    Tuesday
    Correct
    Wrong
  • 3
    Wednesday
    Correct
    Wrong
  • 4
    Friday
    Correct
    Wrong
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Answer : 3. "Wednesday"
Explanation :

Answer: C) Wednesday Explanation: 17th June, 1998 = (1997 years + Period from 1.1.1998 to 17.6.1998)Odd days in 1600 years = 0Odd days in 300 years = 197 years has 24 leap years + 73 ordinary years.Number of odd days in 97 years ( 24 x 2 + 73) = 121 = 2 odd days.Jan. Feb. March. April. May. June.(31 + 28 + 31 + 30 + 31 + 17) = 168 days168 days = 24 weeks = 0 odd day.Total number of odd days = (0 + 1 + 2 + 0) = 3.Given day is Wednesday.

Q: If the third day of a month is Tuesday, which of the following would be the 4th day before the 27th day of that month? 2857 1

  • 1
    Tuesday
    Correct
    Wrong
  • 2
    Monday
    Correct
    Wrong
  • 3
    Wednesday
    Correct
    Wrong
  • 4
    Sunday
    Correct
    Wrong
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Answer : 2. "Monday"
Explanation :

Answer: B) Monday Explanation: Dates on which Tuesday fall are 3,10,17, and 24   Hence, the 27th day of the month will be (Tuesday + 3 days=)Friday   Required day of the month = Friday - 4 = Monday

Q: Sandhya's birthday falls on 15th August and Minu's birthday falls on 25th June. If Minu's birthday was on Wednesday, what was the day on Sandhya's birthday in the same year? 2300 0

  • 1
    Friday
    Correct
    Wrong
  • 2
    Monday
    Correct
    Wrong
  • 3
    Tuesday
    Correct
    Wrong
  • 4
    Saturday
    Correct
    Wrong
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Answer : 1. "Friday"
Explanation :

Answer: A) Friday Explanation: Total days from 25th June to 15th August = 5 + 31 + 15 = 51 days       51/7  = 7 weeks and 2 days        August 15 = Wednesday + 2 = Friday

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