GATE ES topic:environmental-engineering PYQs & Answers — Page 4

Questions 31–40 of 390. Imported answers require independent review unless marked reviewed.

Which of the following statements is/are CORRECT in the context of hazardous waste management and its risk assessment?

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

Risk is estimated based on the probability of an action occurring multiplied by the severity of damage.

High octanol water constant (

) is indicative of lower accumulation of an organic chemical in body tissue.

Pump and treat is an example of contaminated groundwater remediation.

Biological treatment processes are never applied for hazardous waste management.

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Which of the following statements is/are TRUE about global warming?

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

Interception of incoming solar radiation by greenhouse gases in earth’s atmosphere is responsible for global warming.

Interception of outgoing longwave radiation by greenhouse gases in earth’s atmosphere is responsible for global warming.

Global warming can cause sea level rise.

Carbon dioxide is one of the major greenhouse gases in earth’s atmosphere responsible for global warming.

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Which of the following options is/are directly associated with the steps involved in carrying out life cycle assessment (LCA)?

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

Determination of functional unit

Defining goal and scope

Defining technology readiness level

Listing out inventory of inputs and outputs

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A 6-hour rainfall of 6 cm at a station was found to have a return period of 40 years. The probability that a 6-hour rainfall of this or larger magnitude will occur at least once in 20 successive years at that station is ______ (rounded off to three decimal places).

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Water is flowing at the rate of 15 m

/s through a rectangular channel of 5 m width. If the acceleration due to gravity (g) is 9.81 m/s

, the critical velocity for the flow is ______m/s (rounded off to three decimal places).

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A first-order ordinary differential equation is given as follows:

Which ONE of the following options CORRECTLY represents the characteristics of this equation?

Your answerChoose one option.

Linear, homogeneous, and exact

Nonlinear, nonhomogeneous, and exact

Linear, homogeneous, and non-exact

Nonlinear, nonhomogeneous, and non-exact

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Consider the matrix

. Which ONE of the following options CORRECTLY lists the eigenvalues of

Your answerChoose one option.

1; 8 −

; −8 +

2; 8 −

; −8 +

1; 8 +

; 8 −

2; 8 +

; 8 +

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Which ONE of the following options is CORRECT with respect to sequential breakdown of deoxyribonucleic acid (DNA) into lower-molecular weight compounds?

Your answerChoose one option.

Deoxyribonucleic acid → 2-deoxyribose → Nucleosides → Nucleotides

Deoxyribonucleic acid → 2-deoxyribose → Nucleotides → Nucleosides

Deoxyribonucleic acid → Nucleotides → Nucleosides → 2-deoxyribose

Deoxyribonucleic acid → Nucleosides → Nucleotides → 2-deoxyribose

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Which ONE of the following options CORRECTLY matches the Criteria Air Pollutants with measurement methods used in Continuous Ambient Air Quality Monitoring Stations (CAAQMS) operated by Central Pollution Control Board (CPCB) given in the table?

Criteria Air Pollutants	Measurement Methods
(P) Sulphur Dioxide (SO , in μg/m )	(i) Chemiluminescence
(Q) Nitrogen Dioxide (NO , in μg/m )	(ii) Non Disperse Infra Red (NDIR) spectroscopy
(R) Particulate Matter (PM , in μg/m )	(iii) Ultraviolet fluorescence
(S) Carbon Monoxide (CO, in mg/m )	(iv) Beta attenuation

Your answerChoose one option.

(P) - (i); (Q) - (ii); (R) - (iii); (S) - (iv)

(P) - (iv); (Q) - (iii); (R) - (ii); (S) - (i)

(P) - (iii); (Q) - (i); (R) - (iv); (S) - (ii)

(P) - (ii); (Q) - (iii); (R) - (i); (S) - (iv)

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Which ONE of the following options CORRECTLY matches the atmospheric stability conditions with plume conditions/behaviors given in the table?

Atmospheric Stability Conditions	Plume Conditions/Behaviors
(P) Strong instability	(i) Fanning plume
(Q) Neutral stability	(ii) Fumigation
(R) Surface inversion	(iii) Coning plume
(S) Aloft inversion	(iv) Looping plume

Your answerChoose one option.

(P) - (i); (Q) - (ii); (R) - (iii); (S) - (iv)

(P) - (iv); (Q) - (iii); (R) - (i); (S) - (ii)

(P) - (iii); (Q) - (iv); (R) - (ii); (S) - (i)

(P) - (ii); (Q) - (i); (R) - (iv); (S) - (iii)

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GATE ES topic:environmental-engineering PYQs

Question 31

Question 32

Question 33

Question 34

Question 35

Question 36

Question 37

Question 38

Question 39

Question 40