Mining Engineering
2019 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE MN 2019 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 34–36 of 65. Imported answers require review unless explicitly marked reviewed.
Question 24
Open questionMNNAT1 markNeeds review
In a slake durability test, mass of the drum with samples before the test and mass of the drum with oven-dried samples after the test are 1.52 kg and 1.48 kg respectively. If the mass of the drum is 1.05 kg, slake durability index in percentage (rounded off to two decimal places) is __________.
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Open questionMNNAT1 markNeeds review
The ionic concentration of a mine water sample with pH close to 7.0 is given below. The alkalinity of the water expressed as equivalent CaCO
, in mg/l, (rounded off to two decimal places) is __________.Cations | mg/l | Anions | mg/l |
|---|---|---|---|
Ca | 95.0 | HCO | 160.0 |
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Open questionMNMCQ2 marksNeeds review
From an elevated point A, when a stone is thrown vertically, it attains an upward velocity of
at a height of
from the point A. While falling, its downward velocity becomes
at a distance
below the point A. The maximum height attained by the stone from point A isYour answerChoose one option.
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