Mining Engineering
2023 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE MN 2023 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 16–18 of 65. Imported answers require review unless explicitly marked reviewed.
Question 16
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Given two random variables X and Y, the expected value E(3X−5Y) is
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The reaction products of calcium hydroxide with acidic feruginous mine water are
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An underground coal mine experienced 5 serious injuries, 15 reportable injuries, and 25 minor injuries during 2020. If the average employment in the mine is 1200, then the total injury rate per 1000 persons employed is
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