List of top Environmental Management Questions asked in TS PGECET

Which gas is primarily responsible for the corrosion of metals and monuments in polluted urban environments?

Which pollutant is mainly responsible for thermal inversion-related smog episodes in urban areas?

Which long-term environmental effect is most strongly linked to excessive phosphorus discharge into water bodies?

Which factor primarily controls the volatilization of organic pollutants from soil and water surfaces?

Which waste management option is most effective for reducing greenhouse gas emissions from organic solid waste?

Excessive use of nitrogenous fertilizers in soil can directly lead to

Minamata disease is caused due to long-term exposure to

Which pollutant reduces atmospheric visibility by light scattering, contributing to haze formation?

A water sample shows high COD but relatively low BOD. This indicates the presence of

Temporary hardness of water is mainly caused by the presence of

Which process in the hydrologic cycle directly contributes to groundwater recharge?

Sloughing in trickling filters usually results in

Sludge bulking in an activated sludge process is mainly due to

Which greenhouse gas has very high heat-trapping ability per molecule, but is present in the smallest amount in the atmosphere?

The tropopause is characterized by

Which of the following is a secondary air pollutant?

Which gas contributes most to the natural greenhouse effect?

A high Sludge Volume Index (SVI) in an Activated Sludge Process (ASP) indicates

Arrange the following devices in increasing order of particulate collection efficiency for fine particles: \[ \begin{aligned} A.&\ \text{Gravity settling chamber} B.&\ \text{Cyclone separator} C.&\ \text{Electrostatic precipitator} \end{aligned} \]

In water and wastewater analysis, Kjeldahl nitrogen (TKN) represents the sum of

High concentration of nitrates (\(>45\ \mathrm{mg/L}\)) in drinking water causes

For the removal of sub-micron particulate matter (\(<1~\mu\mathrm{m}\)) from flue gases, which of the following devices generally provides the highest collection efficiency?

A trickling filter receives an organic load of \(300~\mathrm{kg\ BOD/day}\) and has a filter volume of \(150~\mathrm{m^3}\). What is the organic loading rate of the filter?

According to drinking water standards, the desirable residual chlorine at the consumer end is about

If the per capita water supply is \(150~\mathrm{L/day}\) and \(80\%\) becomes sewage, the sewage generated for \(10{,}000\) people is