GATE Practice Question and Answer

Q: What Asks But Never Answers? 2354 0

  • 1
    Teacher
    Correct
    Wrong
  • 2
    Telephone
    Correct
    Wrong
  • 3
    Letter
    Correct
    Wrong
  • 4
    Owl
    Correct
    Wrong
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Answer : 4. "Owl"
Explanation :

Answer: D) Owl Explanation: An owl. "What noise does an owl make? The sound an Owl makes, it sounds like, "Who?" to our ears. They sounds entire lives asking the same question, but they'll never give any answers.

Q: Statement: There is a substantial increase in the number of accidents causing deaths and severe injuries due to malfunctioning of the traffic signals.Course of action:a. The traffic police should immediately post traffic personnel at the junctions.b. The signal system should immediately be repaired or replaced. 2353 0

  • 1
    Only a follows
    Correct
    Wrong
  • 2
    Either a or b follows
    Correct
    Wrong
  • 3
    Only b follows
    Correct
    Wrong
  • 4
    Neither a nor b follows
    Correct
    Wrong
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Answer : 2. "Either a or b follows"
Explanation :

Answer: B) Either a or b follows Explanation: Clearly, either the traffic signals should be made to function properly or traffic personnel should be deployed to guide vehicular movement in the right way. So either I or II follows.

Q: If y/(x - z) = (y + x)/z = x/y then find z : y : x ? 2352 0

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

Answer: B) 3:2:4 Explanation: Given, y/(x - z) = (y + x)/z = x/yyz = xy + x2 - yz - xz ....(1)Also xy = yx-z ⇒x2 -xz = y2 ....(2)Using (1) and (2), we get yz = xy - yz + y22yz = xy + y22z = x + y Only option (B) satisfies the equation.

Q: On her deathbed, a grand mother called upon his three grand sons and told them to distribute all her assets worth Rs. 52,500 in the ratio of 1/35 : 1/21 : 1/15 amongst themselves. Find the smallest share amongst the three portions ? 2352 0

  • 1
    Rs. 5422
    Correct
    Wrong
  • 2
    Rs. 10,500
    Correct
    Wrong
  • 3
    Rs. 12,800
    Correct
    Wrong
  • 4
    Rs. 15,000
    Correct
    Wrong
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Answer : 2. "Rs. 10,500"
Explanation :

Answer: B) Rs. 10,500 Explanation: The ratio of distribution should be: 21 x 15 : 15 x 35 : 35 x 21= 315 : 525 : 735 = 3 : 5 : 7The smallest share will be of worth: 3/15 x 52,500 = Rs. 10,500

Q: Rust forms when _____ reacts with chemicals in rocks. 2352 0

  • 1
    Water
    Correct
    Wrong
  • 2
    Oxygen
    Correct
    Wrong
  • 3
    Nitrogen
    Correct
    Wrong
  • 4
    Carbondioxide
    Correct
    Wrong
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Answer : 2. "Oxygen"
Explanation :

Answer: B) Oxygen Explanation: Rust forms when oxygen reacts with chemicals in rocks, and that is often the case with many other elements in general. Like a copper nail being exposed to the air will rust.

Q: Which value is equal to 5% of 1,500? 2352 0

  • 1
    35
    Correct
    Wrong
  • 2
    55
    Correct
    Wrong
  • 3
    75
    Correct
    Wrong
  • 4
    45
    Correct
    Wrong
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Answer : 3. "75"
Explanation :

Answer: C) 75 Explanation: In the question it is asked for 5% of 1500 5 x 1500/100 = 15 x 5 = 75.   Hence, 5% of 1,500 is equal to 75.

Q: Complete the missing Number Puzzle? 2352 0

  • 1
    40
    Correct
    Wrong
  • 2
    52
    Correct
    Wrong
  • 3
    89
    Correct
    Wrong
  • 4
    96
    Correct
    Wrong
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Answer : 4. "96"
Explanation :

Answer: D) 96 Explanation: Here in the given number puzzle, the given numbers follows a pattern that  1 + 4 = 5 => 1 x 4 + 1 = 4 + 1 = 5  2 + 5 = 12 => 2 x 5 + 2 = 10 + 2 = 12    3 + 6 = 21 => 3 x 6 + 3 = 18 + 3 = 21  Similarly,  8 + 11 = 96 => 8 x 11 + 8 = 88 + 8 = 96   Hence, the missing number in the given number puzzle is 96.

Q: What type of bond is joining the two hydrogen atoms? 2351 0

  • 1
    Hydrophobic
    Correct
    Wrong
  • 2
    Ionic
    Correct
    Wrong
  • 3
    Covalent
    Correct
    Wrong
  • 4
    Hydrophilic
    Correct
    Wrong
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Answer : 3. "Covalent"
Explanation :

Answer: C) Covalent Explanation: Covalent type of bonding joins the two hydrogen atoms. Hydrogen atoms in compounds such as H2 and H2O are joined to the molecule with covalent bonds. This is where electrons are shared between the atoms in order to fill there valence shells.

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