GATE Practice Question and Answer
8Q: How many right angles does a square have? 1917 05b5cc636e4d2b4197774b9eb
5b5cc636e4d2b4197774b9eb- 12false
- 26false
- 34true
- 48false
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Answer : 3. "4"
Explanation :
Answer: C) 4 Explanation: A square and a rectangle each have 4 right (90 deg) angles. Both square and rctangle have 4 sides and 4 angles, but the only difference is square is a rectangle with all sides equal.
Q: Which startup acquired Google's satellite imaging business in 2017 ? 1916 05b5cc75ce4d2b4197774fc75
5b5cc75ce4d2b4197774fc75- 1NovaWurksfalse
- 2PlanetiQfalse
- 3Planet Labstrue
- 4UrtheCastfalse
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Answer : 3. "Planet Labs"
Explanation :
Answer: C) Planet Labs Explanation: American startup Planet Labs, that launches small satellites into orbit and sells the imagery, has announced its acquisition of Google's 'Terra Bella' satellite business. As part of the agreement, 60 Google employees will join the startup founded by ex-NASA scientists. Terra Bella, was acquired by Google in 2014 for $500 million and that time it was known as Skybox Imaging.
Q: Friction can be reduced by changing from 1916 05b5cc6b6e4d2b4197774d593
5b5cc6b6e4d2b4197774d593- 1Static to Dynamicfalse
- 2Rolling to Slidingfalse
- 3Dynamic to Staticfalse
- 4Sliding to Rollingtrue
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Answer : 4. "Sliding to Rolling"
Explanation :
Answer: D) Sliding to Rolling Explanation: Any object rolls when there is no friction. So, Sliding to Rolling is correct.
Q: How fast do satellites orbit the earth? 1915 05b5cc6a2e4d2b4197774cbad
5b5cc6a2e4d2b4197774cbad- 128,000 kmphtrue
- 226,000 kmphfalse
- 317,500 kmphfalse
- 422,500 kmphfalse
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Answer : 1. "28,000 kmph"
Explanation :
Answer: A) 28,000 kmph Explanation: Satellites orbit the earth at a speed of 28,000 kmph. Satellites that are further away actually travel slower. The International Space Station has a Low Earth Orbit, about 400 kilometers (250 miles) above the earth's surface. Objects orbiting at that altitude travel about 28,000 kilometers per hour (17,500 miles per hour).
Q: Find the quadratic equations whose roots are the reciprocals of the roots of 2x2+5x+3? 1914 05b5cc6dae4d2b4197774e88a
5b5cc6dae4d2b4197774e88a- 13x2+5x+2=0true
- 25x2+3x+2=0false
- 33x2-5x-2=0false
- 4Nonefalse
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Answer : 1. "3x2+5x+2=0"
Explanation :
Answer: A) A Explanation: The quadratic equation whose roots are reciprocal of 2x2+5x+3=0 can be obtained by replacing x by 1/x. Hence, 2(1/x)(1/x)+ 5(1/x) + 3 = 0 => 3x2+5x+2=0
Q: Find the next number in the given number series? 11, 5.5, 10, 6.5, 9, ? 1914 05b5cc61ee4d2b4197774b753
5b5cc61ee4d2b4197774b753- 16.5false
- 27.5true
- 38.5false
- 410.5false
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Answer : 2. "7.5"
Explanation :
Answer: B) 7.5 Explanation: The given number series follows a pattern that 11 11 - 5.5 = 5.5 5.5 + 4.5 = 10 10 - 3.5 = 6.5 6.5 + 2.5 = 9 9 - 1.5 = 7.5 Hence, the next number in the given number series is 7.5.
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Answer :
Explanation :
52 C in a P represents 52 Cards in a Pack. Similar to 12 S of the Z 5 C in an OF
Q: 45 men working 9 hours per day dig 40 m deep. How many extra men should be put to dig to a depth of 56 m working 7 hours per day ? 1911 05b5cc6dae4d2b4197774e8c8
5b5cc6dae4d2b4197774e8c8- 136true
- 261false
- 348false
- 454false
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Answer : 1. "36"
Explanation :
Answer: A) 36 Explanation: (45 x 9)/40 = (M x 7)/56 => M = 81 => 81 – 45 = 36

