Mining Engineering
2024 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE MN 2024 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 28–30 of 65. Imported answers require review unless explicitly marked reviewed.
Question 28
Open questionMNNAT1 markNeeds review
A typical 24-hour activity of a mobile crusher plant is shown. The utilization, in %, of the plant, is_____. (round off up to 2 decimals)
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Open questionMNNAT1 markNeeds review
A coal washery discharges 300 m
/day of contaminated water in a stream having a flow rate of 0.04 m
/s. The DO level of the stream and the contaminated water are 8.5 mg/L and 4 mg/L, respectively. Neglecting the impact of temperature, the resultant DO, in mg/L, of the stream just after mixing is ______. (round off up to 2 decimals)Log in to check the answer
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Open questionMNNAT1 markNeeds review
The combined sound pressure level measured at a point in a production bench due to one dumper and one shovel is 95 dB(A). If the sound pressure level of shovel alone is 90 dB(A), the sound pressure level of the dumper alone, in dB(A), at the same point is________, (round off up to 2 decimals)
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