Mining Engineering
2020 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE MN 2020 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 43–45 of 65. Imported answers require review unless explicitly marked reviewed.
Question 33
Open questionMNMCQ2 marksNeeds review
A cylindrical sample of cross-sectional area
, length
, and Young’s Modulus
, is subjected to a constant uniaxial load
. Within the elastic limit of loading, the total strain energy stored isYour answerChoose one option.
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Open questionMNNAT2 marksNeeds review
A surface mine production system along with the reliability of the individual components is shown below. The system reliability is ________ (round off to 3 decimal places).
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Open questionMNNAT2 marksNeeds review
The selling price of one rock bolt (in Rs.) is given as,
, where
is the number of bolts produced. The manufacturing cost of rock bolts has a fixed component of Rs. 1500, and a variable component of Rs. 100 per bolt. The minimum break-even production, in number of rock bolts, is ________ (round off to 1 decimal place).Log in to check the answer
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