GATE Practice Question and Answer
8Q: In how many ways the word 'SCOOTY' can be arranged such that 'S' and 'Y' are always at two ends? 3030 05b5cc619e4d2b4197774b705
5b5cc619e4d2b4197774b705- 1720false
- 2360false
- 3120false
- 424true
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Answer : 4. "24"
Explanation :
Answer: D) 24 Explanation: Given word is SCOOTY ATQ, Except S & Y number of letters are 4(C 2O's T) Hence, required number of arrangements = 4!/2! x 2! = 4! = 4 x 3 x 2 = 24 ways.
Q: Which type of molecule is CF4? 3028 05b5cc675e4d2b4197774c0ec
5b5cc675e4d2b4197774c0ec- 1nonpolar, with a symmetrical distribution of chargetrue
- 2polar, with an asymmetrical distribution of chargefalse
- 3nonpolar, with an asymmetrical distribution of chargefalse
- 4polar, with a symmetrical distribution of chargefalse
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Answer : 1. "nonpolar, with a symmetrical distribution of charge"
Explanation :
Answer: A) nonpolar, with a symmetrical distribution of charge Explanation: CF4 is tetrahedral. Since the four 'F' atoms have the same electronegativity values, there is no bias in electron distribution toward any one. Therefore, electron/charge distribution is symmetrical, which also means that the molecule is nonpolar. Hence, CF4 is nonpolar molecule with a symmetrical distribution of charge.
Q: The absorption of ink by blotting paper involves 3028 05b5cc6a2e4d2b4197774cb7f
5b5cc6a2e4d2b4197774cb7f- 1viscosity of inkfalse
- 2diffusion of ink through the blottingfalse
- 3capillary action phenomenontrue
- 4siphon actionfalse
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Answer : 3. "capillary action phenomenon"
Explanation :
Answer: C) capillary action phenomenon Explanation: The absorption of ink by blotting paper involves capillary action phenomenon because the blotting paper is a thin and a smooth paper which allows a little thicker liquids like ink to absorb.
Q: Two Fathers and Two Sons walk into a ice cream parlour. They each buy something for Rs. 50 but they only spent Rs. 150. How is that possible? 3027 05b5cc6b3e4d2b4197774d413
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Answer :
Explanation :
One grandfather, One father and One son makes two fathers and two sons.
Q: Which of the following is a Heterogeneous Mixture? 3026 05b5cc6b5e4d2b4197774d50b
5b5cc6b5e4d2b4197774d50b- 1Airfalse
- 2Table saltfalse
- 3Sodatrue
- 4Brassfalse
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Answer : 3. "Soda"
Explanation :
Answer: C) Soda Explanation: Here Soda is a Heterogenous Mixture. A Heterogeneous Mixture is a mixture having a non-uniform composition i.e, the mixture contains components in different phases. Using various means, the parts in the mixture can be separated from one another.
Q: Crack the Logical Password of the Mobile ? 3021 05b5cc6bfe4d2b4197774da19
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Answer :
Explanation :
65292 1st digit is 3 x 2 = 6 3rd digit is 5-3 = 2 4th digit is 5+4 = 9 6+5 = 2+9 = 9+2 = 11
Q: The cost of 7 tables and 12 chairs is Rs 48,250. What is the cost of 21 tables and 36 chairs ? 3021 05b5cc718e4d2b4197774f4cc
5b5cc718e4d2b4197774f4cc- 1Rs. 1,44,750true
- 2Rs. 2,35,745false
- 3Rs. 89,489false
- 4Rs.74,256false
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Answer : 1. "Rs. 1,44,750"
Explanation :
Answer: A) Rs. 1,44,750 Explanation: 3T+12C = 48,250----(1) 21T+36C = ? multiply eq (1) with 3i.e,, 3(7T+12C) = 48,250*321T+36C = 1,44,750/-
Q: I have legs, but i cannot walk. Who am I? 3019 05b5cc601e4d2b4197774b485
5b5cc601e4d2b4197774b485- 1Dragon fliestrue
- 2Prawnsfalse
- 3House fliesfalse
- 4All of the abovefalse
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Answer : 1. "Dragon flies"
Explanation :
Answer: A) Dragon flies Explanation: Dragon flies have legs but they cannot walk.