1
GATE CE 2024 Set 1
Numerical
+2
-0.833
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).
Your input ____
2
GATE CE 2024 Set 1
Numerical
+2
-0.833
A water treatment plant treats 25 MLD water with a natural alkalinity of 4.0 mg/L (as CaCO3). It is estimated that, during the 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).
Your input ____
3
GATE CE 2023 Set 2
MCQ (More than One Correct Answer)
+2
-0
In the context of water and wastewater treatments, the correct statements are:
4
GATE CE 2017 Set 2
Numerical
+2
-0
The analysis of a water sample produces the following results:
The total hardness (in mg/L as $${\mathrm{CaCO}}_3$$) of the water sample is ______.
The total hardness (in mg/L as $${\mathrm{CaCO}}_3$$) of the water sample is ______.Your input ____
Questions Asked from Quality Control of Water (Marks 2)
Number in Brackets after Paper Indicates No. of Questions
GATE CE Subjects
Construction Material and Management
Geomatics Engineering Or Surveying
Levelling Traversing Theodolites and Plane Table Surveying Measurement of Area, Volume and Theory of Errors and Survey Adjustment Field Astronomy and Photogrammetric Surveying Basics of GIS, GPS and Remote Sensing Angular Measurements and Compass Survey Basic Concepts Linear Measurements and Chain Survey
Engineering Mechanics
Hydrology
Transportation Engineering
Strength of Materials Or Solid Mechanics
Reinforced Cement Concrete
Steel Structures
Environmental Engineering
Engineering Mathematics
Structural Analysis
Geotechnical Engineering
Fluid Mechanics and Hydraulic Machines
General Aptitude