Mining Engineering
GATE MN format:mcq PYQs
Build your understanding with focused practice from past exam papers.
Questions 251–260 of 348. Imported answers require independent review unless marked reviewed.
Question 7
Open questionGAMCQ2 marksNeeds review
A person divided an amount of Rs. 100,000 into two parts and invested in two different schemes. In one he got 10% profit and in the other he got 12%. If the profit percentages are interchanged with these investments he would have got Rs.120 less. Find the ratio between his investments in the two schemes.
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Congo was named by Europeans. Congo’s dictator Mobuto later changed the name of the country and the river to Zaire with the objective of Africanising names of persons and spaces. However, the name Zaire was a Portuguese alteration of Nzadi o Nzere, a local African term meaning ‘River that swallows Rivers’. Zaire was the Portuguese name for the Congo river in the 16th and 17th centuries.
Which one of the following statements can be inferred from the paragraph above?
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A firm hires employees at five different skill levels P, Q, R, S, T. The shares of employment at these skill levels of total employment in 2010 is given in the pie chart as shown. There were a total of 600 employees in 2010 and the total employment increased by 15% from 2010 to 2016. The total employment at skill levels P, Q and R remained unchanged during this period. If the employment at skill level S increased by 40% from 2010 to 2016, how many employees were there at skill level T in 2016?
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M and N had four children P, Q, R and S. Of them, only P and R were married. They had children X and Y respectively. If Y is a legitimate child of W, which one of the following statements is necessarily FALSE?
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Shear strength of rock joint is NOT dependent on
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If
is a polynomial function that passes through origin, and
, thenYour answerChoose one option.
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A flat longwall panel is mined out at an area having subsidence factor
. The measured maximum subsidence on the surface is
for a mining height of
. The subsidence is sabrical ifYour answerChoose one option.
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The PV diagram of four explosives is given below. The preferred explosive for adequate fragmentation in hard and brittle rock is
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As per classification of mineral resources “reserve” means
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If the sample statistic
is an unbiased estimator of the parameter
, thenYour answerChoose one option.
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