GATE Practice Question and Answer
8Q: If a2+b2 = c2 , then 1logc+ab + 1logc-ab = ? 2846 15b5cc761e4d2b4197774fd67
5b5cc761e4d2b4197774fd67- 11false
- 22true
- 34false
- 48false
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Answer : 2. "2"
Explanation :
Answer: B) 2 Explanation: Given a2 + b2 = c2 Now 1logc+ab + 1logc-ab = logbc+a + logbc-a = logbc2-a2 = 2logbb = 2
Q: Which acid is produced when milk gets sour? 2844 05b5cc69de4d2b4197774c8c6
5b5cc69de4d2b4197774c8c6- 1Lactic acidtrue
- 2Acetic acidfalse
- 3Tartaric acidfalse
- 4Butyric acidfalse
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Answer : 1. "Lactic acid"
Explanation :
Answer: A) Lactic acid Explanation:
Q: In what time will Rs. 3300 becomes Rs. 3399 at 6% per annum interest compounded half-yearly ? 2841 05b5cc701e4d2b4197774f175
5b5cc701e4d2b4197774f175- 1Quarter monthsfalse
- 2Half yeartrue
- 32 yearsfalse
- 41 yearfalse
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Answer : 2. "Half year"
Explanation :
Answer: B) Half year Explanation: 3300 ----- 3% ↑ (1st time interval, 99) → 3399. Here, time interval is given as half-yearly i.e. 6 months.
Q: Choose the antonym of the word given from the following options ? MUNDANE 2841 05b5cc75ce4d2b4197774fc52
5b5cc75ce4d2b4197774fc52- 1Extraordinarytrue
- 2Regularfalse
- 3Visionaryfalse
- 4Routinefalse
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Answer : 1. "Extraordinary"
Explanation :
Answer: A) Extraordinary Explanation:
Q: Train X crosses a stationary train Y in 60 seconds and a pole in 25 seconds with the same speed. The length of the train X is 300 m. What is the length of the stationary train Y ? 2840 05b5cc6d8e4d2b4197774e7c6
5b5cc6d8e4d2b4197774e7c6- 1360 mfalse
- 2420 mtrue
- 3460 mfalse
- 4320 mfalse
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Answer : 2. "420 m"
Explanation :
Answer: B) 420 m Explanation: Let the length of the stationary train Y be LY Given that length of train X, LX = 300 m Let the speed of Train X be V. Since the train X crosses train Y and a pole in 60 seconds and 25 seconds respectively. => 300/V = 25 ---> ( 1 ) (300 + LY) / V = 60 ---> ( 2 ) From (1) V = 300/25 = 12 m/sec. From (2) (300 + LY)/12 = 60 => 300 + LY = 60 (12) = 720 => LY = 720 - 300 = 420 m Length of the stationary train = 420 m
Q: '.bak' extension refers to what kind of file? 2840 05b5cc645e4d2b4197774bb9f
5b5cc645e4d2b4197774bb9f- 1Documentfalse
- 2Movie/Video filefalse
- 3Backup filetrue
- 4Audio filefalse
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Answer : 3. "Backup file"
Explanation :
Answer: C) Backup file Explanation: In computing, ".bak" is a filename extension commonly used to signify a backup copy of a file.
Q: If Laxmi is taller than Ramya but shorter than Susmitha and Ramya is as tall as Hema but taller than Avanthi, then Hema is : 2839 05b5cc771e4d2b4197774fff3
5b5cc771e4d2b4197774fff3- 1shorter than Ramyafalse
- 2taller than Avanthifalse
- 3taller than susmithafalse
- 4shorter than Laxmitrue
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Answer : 4. "shorter than Laxmi"
Explanation :
Answer: D) shorter than Laxmi Explanation: As given, we have: Susmitha > Laxmi > Ramya; Ramya = Hema, Ramya > Avanthi Thus the sequence of heights becomes: Susmitha > Laxmi > Ramya = Hema > Avanthi Clearly, Hema is shorter than Laxmi.
Q: Word length of a personal computer is 2831 05b5cc642e4d2b4197774bb7c
5b5cc642e4d2b4197774bb7c- 132 bitfalse
- 216 bitfalse
- 38 bittrue
- 44 bitfalse
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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.