The liquid forms of particulate air pollutants are
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- dust and mist
- mist and spray
- smoke and spray
- fly ash and fumes
The Correct Option is B
Solution and Explanation
Top Questions on Pollutants: Types, Sources & Impact
Which one of the following statements is TRUE for Greenhouse Gas (GHG) in the atmosphere?
- GATE CE - 2023
- Environmental Engineering
- Pollutants: Types, Sources & Impact
Match the following air pollutants with the most appropriate adverse health effects:
- GATE CE - 2023
- Environmental Engineering
- Pollutants: Types, Sources & Impact
The concentration \( S(x, t) \) of pollutants in a one-dimensional reservoir at position \\(( x \text{ and time } t \text{ satisfies the diffusion equation}\)
\[\frac{\partial s(x, t)}{\partial t} = D \frac{\partial^2 s(x, t)}{\partial x^2}\]on the domain \( 0 \le x \le L \), where \( D \) is the diffusion coefficient of the pollutants. The initial condition \( S(x, 0) \) is defined by the step-function shown in the figure.
The boundary conditions of the problem are given by \( \frac{\partial s(x, t)}{\partial x} = 0 \) at the boundary points \(x = 0 \text{ and }\) \(x = L \text{ at all times}\). Consider \(D = 0.1 \ \text{m}^2/ \text{s}, S_0 = 5 \ \mu \text{mol/m}\), \(\text{and} L = 10 \ \text{m}.\) The steady-state concentration} \(\hat{s} \left( \frac{L}{2} \right) = s \left( \frac{L}{2}, \infty \right)\) at the center \(x = \frac{L}{2} \)\( \text{ of the reservoir is}\) _________ (in \(\mu \text{mol/m}) \)(in integer).
- GATE CE - 2022
- Environmental Engineering
- Pollutants: Types, Sources & Impact
- Which of the following statement(s) is/are correct?
- GATE CE - 2021
- Environmental Engineering
- Pollutants: Types, Sources & Impact
- Read the statements given below.
(i) Value of the wind profile exponent for the 'very unstable' atmosphere is smaller than the wind profile exponent for the 'neutral' atmosphere.
(ii) Downwind concentration of air pollutants due to an elevated point source will be inversely proportional to the wind speed.
(iii) Value of the wind profile exponent for the 'neutral' atmosphere is smaller than the wind profile exponent for the 'very unstable' atmosphere.
(iv) Downwind concentration of air pollutants due to an elevated point source will be directly proportional to the wind speed.
Select the correct option.- GATE CE - 2021
- Environmental Engineering
- Pollutants: Types, Sources & Impact
Questions Asked in GATE CE exam
Consider a five-digit number PQRST that has distinct digits P, Q, R, S, and T, and satisfies the following conditions:
1. \( P<Q \)
2. \( S>P>T \)
3. \( R<T \)
If integers 1 through 5 are used to construct such a number, the value of P is:
- GATE CE - 2025
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Given: - Bearing = N30°W - Find WCB- GATE CE - 2025
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Given: - \( B = 5 \, \text{m} \) - \( Q = 15 \, \text{m}^3/\text{sec} \) - \( y_1 = 0.5 \, \text{m} \) - \( g = 9.81 \, \text{m/s}^2 \) - \( \rho_w = 1000 \, \text{kg/m}^3 \) - \( \alpha = 1.0 \) - Find Power loss in kW- GATE CE - 2025
- Fluid Mechanics