GATE CE format:msq PYQs & Answers — Page 7

Questions 61–70 of 81. Imported answers require independent review unless marked reviewed.

Which of the following statements is/are TRUE for the aerobic composting of sewage sludge?

Your answerSelect all correct options. You can choose more than one.

Bulking agent is added during the composting process to reduce the porosity of the solid mixture

Leachate can be generated during composting

Actinomycetes are involved in the process

In-vessel composting systems cannot be operated in the plug-flow mode

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Which of the following statements is/are TRUE in relation to the Maximum Mixing Depth (or Height) '

' in the atmosphere?

Your answerSelect all correct options. You can choose more than one.

is always equal to the height of the layer of unstable air

Ventilation coefficient depends on

A smaller

will have a smaller air pollution potential if other meteorological conditions remain same

Vertical dispersion of pollutants occurs up to

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The figure presents the time-space diagram for when the traffic on a highway is suddenly stopped for a certain time and then released. Which of the following statements are true?

Diagram for Civil Engineering question 50

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Speed is higher in Region R than in Region P

Volume is lower in Region Q than in Region P

Volume is higher in Region R than in Region P

Density is higher in Region Q than in Region R

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Which of the following options match the test reporting conventions with the given material tests in the table? Table: Test reporting condition: (P) Reported as ratio; (Q) Reported as percentage; (R) Reported in temperature; (S) Reported in length. Material test: (I) Solubility of bitumen; (II) Softening point of bitumen; (III) Los Angeles abrasion test; (IV) Flash point of bitumen; (V) Ductility of bitumen; (VI) Specific gravity of bitumen; (VII) Thin film oven test.

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(P) - (VI); (Q) - (I); (R) - (II); (S) - (VII)

(P) - (VI); (Q) - (III); (R) - (IV); (S) - (V)

(P) - (VI); (Q) - (I); (R) - (II); (S) - (V)

(P) - (VI); (Q) - (III); (R) - (IV); (S) - (VII)

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Consider the Marshall method of mix design for bituminous mix. With the increase in bitumen content, which of the following statements is/are TRUE?

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the Stability decreases initially and then increases

the Flow increases monotonically

the air voids (VA) increases initially and then decreases

the voids filled with bitumen (VFB) increases monotonically

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The matrix

is defined as

and has eigenvalues 5 and −2. The matrix

is formed as

Which of the following is/are the eigenvalue(s) of matrix

Your answerSelect all correct options. You can choose more than one.

−20

−30

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and

are two square matrices of the same order. Which of the following statement(s) is/are correct?

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and

are invertible, then

and

are invertible, then

and

are invertible, then

and

are not invertible, then

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For wastewater coming from a wood pulping industry, Chemical Oxygen Demand (COD) and 5-day Biochemical Oxygen Demand (BOD₅) were determined. For this wastewater, which of the following statement(s) is/are correct?

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COD > BOD₅

COD ≠ BOD₅

COD < BOD₅

COD = BOD₅

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In a solid waste handling facility, the moisture contents (MC) of food waste, paper waste, and glass waste were found to be

, and

, respectively. Similarly, the energy contents (EC) of plastic waste, food waste, and glass waste were found to be

, and

, respectively. Which of the following statement(s) is/are correct?

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Which of the following process(es) can be used for conversion of salt water into fresh water?

Your answerSelect all correct options. You can choose more than one.

Microfiltration

Electrodialysis

Ultrafiltration

Reverse osmosis

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GATE CE format:msq PYQs

Question 49

Question 50

Question 50

Question 51

Question 51

Question 25

Question 25

Question 26

Question 26

Question 27