Mining Engineering
GATE MN kind:question PYQs
Build your understanding with focused practice from past exam papers.
Questions 281–290 of 650. Imported answers require independent review unless marked reviewed.
Question 21
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The correct vertical stress profile in the case of tributary area method for pillar design is
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The bottom section of a stope block has dimensions 200 m × 40 m. If the modified RMR of rock mass is 50, the appropriate method of mining on the basis of Laubscher’s chart in the figure is
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Match the machine with its component.
Machine | Component |
|---|---|
P — Continuous miner | I — Flight bar |
Q — Jack hammer | II — Lemniscate link |
R — AFC | III — Loading apron |
S — Shield support | IV — Rifle bar |
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Which one of the following is NOT a notifiable disease as per Indian mining legislation?
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If the ambient lapse rate is higher than the dry adiabatic lapse rate, the atmosphere is
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Identify the WRONG statement:
The application of controlled air recirculation in an underground work place can
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The correct order of pavement layers for a haul road from top to bottom is
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A mining company produces iron ore and sells to another company. Royalty to be paid is on the basis of
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The cost of a screw compressor with an estimated life of 15 years is ₹21,00,000. If the depreciation of the compressor charged, using ‘sum-of-the-years-digits’ method, at the end of 4th year is ₹2,00,000, the salvage value, in ₹ is ______. (round off to one decimal place)
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A safety device consists of two independent critical components
and
. The failure of any one or both of these components can cause an accident. The failure probabilities of components
and
are 0.2 and 0.1, respectively. The probability of occurrence of an accident is ______. (round off to two decimal places)Log in to check the answer
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