GATE MN kind:question PYQs & Answers — Page 33

Questions 321–330 of 650. Imported answers require independent review unless marked reviewed.

Topic practice 650 questionsPage 33 of 65

The net present values (NPV) of two mining project proposals A and B are as given.

where,

is discount rate.

The required rate of return for which both the proposals have equal possibility of acceptance and rejection, is ______. (round off to two decimal places)

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The value of

, is ______. (round off to two decimal places)

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A coal seam of uniform thickness 12 m is dipping at an angle 30° as shown in the figure. The ultimate pit is demarcated based on allowable instantaneous stripping ratio of 10 m³/tonne and safe slope angle of 45°. The density of coal is 1.41 tonne/m³. The length, L in m is ______. (round off to two decimal places)

Diagram for Mining Engineering question 63

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A mine has a reserve of 150 million tonne (Mt) and is designed for a maximum production capacity of 5 Mt per year. In the first year the production is 2 Mt and it increases by 20% each year. The reserve in Mt that remains at the end of 15 years, is ______. (round off to two decimal places)

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Information on Activity-Time duration of a project is provided below

Activity	Predecessor event	Successor event	Pessimistic	Most likely	Optimistic
A	1	2	20	15	4
B	1	3	12	8	4
C	2	3	16	11	6
D	3	4	20	13	12
E	2	4	13	8	3
F	1	4	45	35	25

The expected project duration in weeks, is ______. (in integer)

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(i) Arun and Aparna are here. (ii) Arun and Aparna is here. (iii) Arun’s families is here. (iv) Arun’s family is here. Which of the above sentences are grammatically CORRECT?

Your answerChoose one option.

(i) and (ii)

(i) and (iv)

(ii) and (iv)

(iii) and (iv)

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The mirror image of the above text about the X-axis is

Diagram for Mining Engineering question 2

Your answerChoose one option.

Diagram for Mining Engineering question 2 (figure 2)

Diagram for Mining Engineering question 2 (figure 3)

Diagram for Mining Engineering question 2 (figure 4)

Diagram for Mining Engineering question 2 (figure 5)

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Two identical cube shaped dice each with faces numbered 1 to 6 are rolled simultaneously. The probability that an even number is rolled out on each dice is:

Your answerChoose one option.

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⊕ and ⊙ are two operators on numbers

and

such that

, and

Then,

Your answerChoose one option.

-26

-33

-40

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Four persons P, Q, R and S are to be seated in a row. R should not be seated at the second position from the left end of the row. The number of distinct seating arrangements possible is:

Your answerChoose one option.

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GATE MN kind:question PYQs

Question 61

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Question 65

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