GATE Practice Question and Answer

Q: A semi-mechanised car park, the first of its kind in Jammu and Kashmir, was inaugurated by ___________. 1737 0

  • 1
    Mehbooba Mufti
    Correct
    Wrong
  • 2
    Narendra Modi
    Correct
    Wrong
  • 3
    Nitin Gadkari
    Correct
    Wrong
  • 4
    Pranab Mukherjee
    Correct
    Wrong
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Answer : 1. "Mehbooba Mufti"
Explanation :

Answer: A) Mehbooba Mufti Explanation: A semi-mechanised car park, the first of its kind in Jammu and Kashmir, was inaugurated by Chief Minister Mehbooba Mufti who hoped the facility would ease traffic congestion in and around Lal Chowk. The multi-level car park, located near the old KMD bus stand on Maulana Azad Road, has been set up at a cost of Rs 27.15 crore and has a capacity to hold 288 vehicles.

Q: Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5 ? 1736 0

  • 1
    2/3
    Correct
    Wrong
  • 2
    1/2
    Correct
    Wrong
  • 3
    7/8
    Correct
    Wrong
  • 4
    4/5
    Correct
    Wrong
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Answer : 2. "1/2"
Explanation :

Answer: B) 1/2 Explanation: Multiples of 3 below 20 are 3, 6, 9, 12, 15, 18 Multiples of 5 below 20 are 5, 10, 15, 20 Required number of possibilities = 10Total number of possibilities = 20Required probability = 10/20 = 1/2.

Q: How many valence electrons are in carbon? 1736 0

  • 1
    2
    Correct
    Wrong
  • 2
    4
    Correct
    Wrong
  • 3
    6
    Correct
    Wrong
  • 4
    3
    Correct
    Wrong
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Answer : 2. "4"
Explanation :

Answer: B) 4 Explanation: The main group number for an element can be found from its column on the periodic table. For example, carbon is in group 4 and has 4 valence electrons. Oxygen is in group 6 and has 6 valence electrons.

Q: What goes in dry and comes out wet? 1736 0

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Answer :
Explanation :

A Bath towel or a tea bag are suitable answers.

Q: Fill in the blanks with the appropriate words. Countries which _________ still undergoing the economic processes_________ known as developing countries. 1735 0

  • 1
    are, are
    Correct
    Wrong
  • 2
    are, is
    Correct
    Wrong
  • 3
    is, are
    Correct
    Wrong
  • 4
    were, are
    Correct
    Wrong
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Answer : 1. "are, are"
Explanation :

Answer: A) are, are Explanation:

Q: Which ocean surrounds Antarctica? 1734 0

  • 1
    Atlantic ocean
    Correct
    Wrong
  • 2
    Indian ocean
    Correct
    Wrong
  • 3
    Pacific ocean
    Correct
    Wrong
  • 4
    Southen ocean
    Correct
    Wrong
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Answer : 4. "Southen ocean"
Explanation :

Answer: D) Southen ocean Explanation: Antarctica is surrounded on all sides by water. The Indian, Pacific and Atlantic Oceans surround it on all sides. These three Oceans all meet at Antarctica. The three oceans are collectively called the Southern Ocean. This is the area located south of 50° latitude.

Q: In how many different ways can the letters of the word 'ABYSMAL' be arranged ? 1733 0

  • 1
    5040
    Correct
    Wrong
  • 2
    3650
    Correct
    Wrong
  • 3
    4150
    Correct
    Wrong
  • 4
    2520
    Correct
    Wrong
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Answer : 4. "2520"
Explanation :

Answer: D) 2520 Explanation: Total number of letters in the word ABYSMAL are 7   Number of ways these 7 letters can be arranged are 7! ways   But the letter is repeated and this can be arranged in 2! ways   Total number of ways arranging ABYSMAL = 7!/2! = 5040/2 = 2520 ways.

Q: Using numbers from 0 to 9 the number of 5 digit telephone numbers that can be formed is 1733 0

  • 1
    1,00,000
    Correct
    Wrong
  • 2
    59,049
    Correct
    Wrong
  • 3
    3439
    Correct
    Wrong
  • 4
    6561
    Correct
    Wrong
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Answer : 3. "3439"
Explanation :

Answer: C) 3439 Explanation: The numbers 0,1,2,3,4,5,6,7,8,9 are 10 in number while preparing telephone numbers any number can be used any number of times.   This can be done in 105ways, but '0' is there   So, the numbers starting with '0' are to be excluded is 94 numbers.    Total 5 digit telephone numbers = 105- 94 = 3439

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