Identify the waterborne diseases caused by viral pathogens:
Identify the waterborne diseases caused by viral pathogens:
Show Hint
- Acute anterior poliomyelitis
- Cholera
- Infectious hepatitis
- Typhoid fever
The Correct Option is A, C
Solution and Explanation
Step 1: Recall the causative agents of each disease.
- Acute anterior poliomyelitis (Polio): Caused by the poliovirus (a viral pathogen), and can be transmitted through contaminated water.
- Cholera: Caused by the bacterium Vibrio cholerae, not a virus.
- Infectious hepatitis (Hepatitis A \& E): Caused by Hepatitis viruses (A and E), which spread through contaminated water.
- Typhoid fever: Caused by the bacterium Salmonella typhi, not a virus.
Step 2: Identify viral waterborne diseases.
Thus, among the given options, the viral diseases are:
- (A) Acute anterior poliomyelitis
- (C) Infectious hepatitis
\[
\boxed{\text{Correct options: (A) and (C)}}
\]
Top Questions on Quality of Water
Henry's law constant for transferring \( O_2 \) from air into water, at room temperature, is 1.3 \( \frac{\text{mmol}}{\text{liter-atm}} \) . Given that the partial pressure of \( O_2 \) in the atmosphere is 0.21 atm, the concentration of dissolved oxygen (mg/liter) in water in equilibrium with the atmosphere at room temperature is \[ \text{(Consider the molecular weight of O}_2 \text{ as 32 g/mol)} \]
- GATE CE - 2022
- Environmental Engineering
- Quality of Water
- A 2 % sewage sample (in distilled water) was incubated for 3 days at 27 °C temperature. After incubation, a dissolved oxygen depletion of 10 mg/L was recorded. The biochemical oxygen demand (BOD) rate constant at 27 °C was found to be 0.23 day\(^{-1}\) (at base e).
The ultimate BOD (in mg/L) of the sewage will be \(\underline{\hspace{2cm}}\) . (round off to the nearest integer)- GATE CE - 2022
- Environmental Engineering
- Quality of Water
- A wastewater sample contains two nitrogen species, namely ammonia and nitrate. Consider the atomic weight of N, H, and O as 14 g/mol, 1 g/mol, and 16 g/mol, respectively. In this wastewater, the concentration of ammonia is 34 mg NH\(_3\)/liter and that of nitrate is 6.2 mg NO\(_3^-\)/liter. The total nitrogen concentration in this wastewater is \(\underline{\hspace{1cm}}\) milligrams nitrogen per liter. (round off to one decimal place)
- GATE CE - 2022
- Environmental Engineering
- Quality of Water
- In a water sample, the concentrations of Ca\(^{2+}\), Mg\(^{2+}\) and HCO\(_3^-\) are 100 mg/L, 36 mg/L and 122 mg/L, respectively. The atomic masses of various elements are: Ca = 40, Mg = 24, H = 1, C = 12, O = 16.
The total hardness and the temporary hardness in the water sample (in mg/L as CaCO\(_3\)) will- GATE CE - 2022
- Environmental Engineering
- Quality of Water
- For wastewater coming from a wood pulping industry, Chemical Oxygen Demand (COD) and 5-day Biochemical Oxygen Demand (BOD\(_5\)) were determined. For this wastewater, which of the following statement(s) is/are correct?
- GATE CE - 2022
- Environmental Engineering
- Quality of Water
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
- Logical and Analytical Reasoning Skills
- Given the following staff readings at two levels, determine the Reduced Level (RL) of B.
Given: - RL of A = 150 m - Find RL of B- GATE CE - 2025
- Surveying and Levelling
- Given the bearing N30°W, determine the corresponding Whole Circle Bearing (WCB). \
Given: - Bearing = N30°W - Find WCB- GATE CE - 2025
- Surveying and Levelling
- Given the following data, determine the final water content \( W_2 \):
Given: - \( W_1 = 18\% \) - \( G_p = 2.74 \) - \( S_1 = 0.65 \) - \( S_2 = 0.852 \) - Find \( W_2 \)- GATE CE - 2025
- Soil Mechanics
- Given the following data for a hydraulic jump, determine the power loss (in kW):
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