GATE 2021 MN – Question 44

Mineral Economics, Mine Planning, Systems Engineering · Mineral Economics · 2 marks · Multiple choice

Match roof-bolt cost/revenue lines: P line A, R line B, S line C, with 1 total cost, 2 indirect operating cost, 3 revenue.

P–1;R–3;S–2
P–2;R–1;S–3
P–1;R–2;S–3
P–3;R–1;S–2

Practise this question in The GATE Grind →

Show answer and explanation

Correct answer: (D) P–3;R–1;S–2

Explanation

Line A passes through the origin and grows with sales, representing revenue(3). Line B has an initial fixed-cost intercept plus variable cost, representing total cost(1). Horizontal C represents the stated indirect/fixed operating cost(2). Hence D.

More Mineral Economics questions

GATE 2021 MN Q47 – A three-year quarry mines 3 million tonnes ore each year. Waste volumes in years 1, 2, 3…
GATE 2026 MN Q16 – In the UNFC mineral-resource classification used by this question, which code denotes the…
GATE 2026 MN Q50 – A shovel costs P=₹20 crore, has salvage S=₹2 crore and life n=10 years. Declining-balance…
GATE 2026 MN Q51 – In the economic block model, centre labels give extraction year and corner labels give…
GATE 2025 MN Q60 – A3-year project costs₹300 crore at year0. Year1–3 revenues are200,300,400 crore and…
GATE 2024 MN Q24 – What is the role of a District Mineral Foundation established by a state government in…

All Mineral Economics questions →