GATE Practice Question and Answer
8Q: Ammeter : Current :: Odometer : ? 2508 05b5cc771e4d2b4197774ffe4
5b5cc771e4d2b4197774ffe4- 1Blood Pressurefalse
- 2Haemoglobinfalse
- 3pressurefalse
- 4Speedtrue
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Answer : 4. "Speed"
Explanation :
Answer: D) Speed Explanation: Here Ammeter is used for measuring Current whereas Odometer is used to measure Speed.
Q: If watches bought at prices ranging from Rs. 200 to Rs. 350 are sold at prices ranging from Rs. 300 to Rs. 425. What is the greatest possible profit that might be made in selling nine watches ? 2507 05b5cc75ce4d2b4197774fc89
5b5cc75ce4d2b4197774fc89- 1Rs. 1800false
- 2Rs. 2000false
- 3Rs. 2025true
- 4Rs. 1750false
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Answer : 3. "Rs. 2025"
Explanation :
Answer: C) Rs. 2025 Explanation: Profit would be maximum if watches are brought for Rs. 200 and sold for Rs. 425Profit = Rs. (425 - 200) = Rs. 225Profit of 9 watches = Rs. 225 x 9 = Rs.2,025.
Q: A Child has 1200 five rupee coins. He wants to place them in such a way that the number of rows and the number of columns remains the same. What is the minimum number of coins that he needs more for this purpose? 2502 05b5cc774e4d2b41977750070
5b5cc774e4d2b41977750070- 1125false
- 296false
- 335false
- 425true
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Answer : 4. "25"
Explanation :
Answer: D) 25 Explanation: We know that, to be in the form that the number of rows and the number of columns to be equal the number should be a perfect square (a2). Given number is 1200 The perfect number which is above and near to 1200 is 1225 which is 35 35. Therefore, The minimum number of coins he need is 25.
Q: Find the odd man out in the following number series? 71, 88, 113, 150, 203, 277 2501 05b5cc678e4d2b4197774c158
5b5cc678e4d2b4197774c158- 1277true
- 2203false
- 3150false
- 4113false
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Answer : 1. "277"
Explanation :
Answer: A) 277 Explanation: The given number series is 71 88 113 150 203 277 +17 +25 +37 +53 +74 +8 +12 +16 +21 +4 +4 +5 The series should be 71 88 112 150 203 276 i.e, the differences of the difference should be +4. Hence, the odd man in the given series is 277.
Q: Instruments for measuring Solar Radiation? 2501 05b5cc68ee4d2b4197774c3f4
5b5cc68ee4d2b4197774c3f4- 1Ammeterfalse
- 2Pyranometertrue
- 3Dynamometerfalse
- 4Anemometerfalse
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Answer : 2. "Pyranometer"
Explanation :
Answer: B) Pyranometer Explanation: Solar radiation instruments may be produced to measure different types of solar energy. When sunlight encounters the Earth's atmosphere, some of it is absorbed or scattered by water vapor, aerosols, clouds, and other air molecules. The radiation which penetrates to the Earth's surface is termed direct solar radiation. A thermopile pyranometer is a type of actinometer used for measuring solar radiation on a planar surface and it is designed to measure the solar radiation flux density (W/m2) from the hemisphere above within a wavelength range 0.3 μm to 3 μm.
Q: Adam and Smith are working on a project. Adam takes 6 hrs to type 36 pages on a computer, while Smith takes 5 hrs to type 40 pages. How much time will they take, working together on two different computers to type a project of 120 pages? 2499 05b5cc76fe4d2b4197774ff58
5b5cc76fe4d2b4197774ff58- 18 hrs 45 minfalse
- 28 hrs 42 minfalse
- 38 hrsfalse
- 48 hrs 34 mintrue
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Answer : 4. "8 hrs 34 min"
Explanation :
Answer: D) 8 hrs 34 min Explanation: Number of pages typed by Adam in 1 hour = 36/6 = 6 Number of pages typed by Smith in 1 hour = 40/5 = 8Number of pages typed by both in 1 hour = (6 + 8) = 14Time taken by both to type 110 pages = (120 * 1/14) = 847 = 8 hrs 34 min.
Q: Which statement is NOT true about polymers? 2498 05b5cc696e4d2b4197774c541
5b5cc696e4d2b4197774c541- 1Polymers are large molecules composed of small monomeric unitsfalse
- 2Polymes are macromoleculesfalse
- 3Polymers are complex molecules composed of random sequences of atomstrue
- 4All the abovefalse
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Answer : 3. "Polymers are complex molecules composed of random sequences of atoms"
Explanation :
Answer: C) Polymers are complex molecules composed of random sequences of atoms Explanation: Polymers are complex molecules composed of random sequences of atoms is the only statement which is not true regarding polymers.
Q: A and B started a business investing the money in ratio 4:6, after 6 months B withdraw his investment and C joins him with twice the amount of B. At the end of the year total profit is Rs.3315. Find share of C ? 2497 05b5cc6c5e4d2b4197774ddd7
5b5cc6c5e4d2b4197774ddd7- 1Rs. 450false
- 2Rs. 1020false
- 3Rs. 765false
- 4Rs. 1530true
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Answer : 4. "Rs. 1530"
Explanation :
Answer: D) Rs. 1530 Explanation: Ratio of investments of A, B & C => Share of C = 1530 Share of B = 765 Share of A = 1020