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 GATE CE Environmental Engineering Questions
- The number of degrees of freedom for a natural open channel flow with a mobile bed is
- The following table gives various components of Municipal Solid Waste (MSW) and a list of treatment/separation techniques.
Component of MSW Treatment/separation technique P - Ferrous metals i - Incineration Q - Aluminum and copper ii - Rapid composting R- Food waste iii - Eddy current separator S-Cardboard iv - Magnetic separator
The CORRECT match is - The primary air pollutant(s) is/are
- Activated carbon is used to remove a pollutant from wastewater in a mixed batch reactor, which follows first-order reaction kinetics.
At a reaction rate of 0.38 /day, the time (in days) required to remove the pollutant by 95% is ______ (rounded off to 1 decimal place). - A water treatment plant treats 25 MLD water with a natural alkalinity of 4.0 mg/L (as CaCO3). It is estimated that, during coagulation of this water, 450 kg/day of calcium bicarbonate (Ca(HCO3)2) is required based on the alum dosage.
Consider the atomic weights as: Ca-40, H-1, C-12, O-16.
The quantity of pure quick lime, CaO (in kg) required for this process per day is _____ (rounded off to 2 decimal places).
Top GATE CE Quality of Water Questions
- A 100 mg of HNO$_3$ (strong acid) is added to water, bringing the final volume to 1.0 liter. Consider the atomic weights of H, N, and O, as 1 g/mol, 14 g/mol, and 16 g/mol, respectively. The final pH of this water is (Ignore the dissociation of water.)
- The hardness of a water sample is measured directly by titration with 0.01 M solution of ethylenediamine tetraacetic acid (EDTA) using eriochrome black T (EBT) as an indicator. The EBT reacts and forms complexes with divalent metallic cations present in the water. During titration, the EDTA replaces the EBT in the complex. When the replacement of EBT is complete at the end point of the titration, the colour of the solution changes from
- A 50 mL sample of industrial wastewater is taken into a silica crucible. The empty weight of the crucible is 54.352 g. The crucible with the sample is dried in a hot air oven at 104°C till a constant weight of 55.129 g. Thereafter, the crucible with the dried sample is fired at 600°C for 1 hour in a muffle furnace, and the weight of the crucible along with residue is determined as 54.783 g. The concentration of total volatile solids is \(\underline{\hspace{2cm}}\).
A water sample is analyzed for coliform organisms by the multiple-tube fermentation method. The results of confirmed tests are as follows:
The most probable number (MPN) of coliform organisms for the above results is to be obtained using the following MPN Index.
MPN Index for Various Combinations of Positive Results when Five Tubes used per Dilution of 10.0 mL, 1.0 mL, and 0.1 mL
The MPN of coliform organisms per 100 mL is
- Ammonia nitrogen is present in a given wastewater sample as the ammonium ion (\( \text{NH}_4^+ \)) and ammonia (\( \text{NH}_3 \)). If pH is the only deciding factor for the proportion of these two constituents, which of the following is a correct statement?
Top GATE CE Questions
- If \(1+\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+\frac{1}{5}+\frac{1}{6}+\frac{1}{7}+\frac{1}{8}+\frac{1}{9}....\frac{1}{29} =\frac{N}{29!}\) Find the remainder when N is divided by 19.
- What will be the relative density?
M = 0.5 percentage of air voids
γmin = 1.3 gm/cc
γmax = 1.8 gm/cc - Find RL of R?
RL of P [BM = 200.000Point Staff Readings
Back sideStaff Readings
Fore sideRemarks P -2.050 - 200.000 Q 1.050 0.95 Change Point R - -1.655 - - What will the angle of the failure plane from horizontal for sand be?
σ3=300
σ1=300+100=400 - Which of the following having negative skamptam Pore water coefficient?