GATE CE 2023 Set 2 | GATE CE Year Wise Previous Years Questions

GATE CE 2023 Set 2

Numerical

-0

For the elevation and temperature data given in the table, the existing lapse rate in the environment is _____ ℃/100 m (round off to two decimal places).

$$ \begin{array}{|c|c|} \hline \text { Elevation from ground level (m) } & \text { Temperature }\left({ }^{\circ} \mathbf{C}\right) \\ \hline 5 & 14.2 \\ \hline 325 & 16.9 \\ \hline \end{array} $$

Your input ____

GATE CE 2023 Set 2

MCQ (Single Correct Answer)

-0.67

Match the following air pollutants with the most appropriate adverse health effects :

Air pollutant	Health effect to human and/or test animal
(P) Aromatic hydrocarbons	(IV) Carcinogenic effect
(Q) Carbon monoxide	(I) Reduce the capability of the blood to carry oxygen
(R) Sulfur oxides	(II) Bronchitis and pulmonary emphysema
(S) Ozone	(III) Damage of chromosomes

(P) – (II), (Q) – (I), (R) – (IV), (S) – (III)

(P) – (IV), (Q) – (I), (R) – (III), (S) – (II)

(P) – (III), (Q) – (I), (R) – (II), (S) – (IV)

(P) – (IV), (Q) – (I), (R) – (II), (S) – (III)

GATE CE 2023 Set 2

MCQ (More than One Correct Answer)

-0

In the context of water and wastewater treatments, the correct statements are:

particulate matter may shield microorganisms during disinfection

ammonia decreases chlorine demand

phosphorous stimulates algal and aquatic growth

calcium and magnesium increase hardness and total dissolved solids

GATE CE 2023 Set 2

MCQ (More than One Correct Answer)

-0

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

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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