1
GATE CE 2022 Set 1
MCQ (Single Correct Answer)
+1
-0.33
In a water sample, the concentrations of Ca2+, Mg2+ 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 CaCO3) will be
2
GATE CE 2016 Set 2
Numerical
+1
-0
The hardness of a ground water sample was found to be 420 mg/L as $$CaCO_3$$. A softener
containing ion exchange resins was installed to reduce the total hardness to 75 mg/L as
$$CaCO_3$$ before supplying to 4 households. Each household gets treated water at a rate of 540
L/day. If the efficiency of the softener is 100%, the bypass flow rate (expressed in L/day) is
.
Your input ____
3
GATE CE 2015 Set 2
Numerical
+1
-0
A groundwater sample was found to contain 500 mg/L total dissolved solids (TDS). TDS (in %)
present in the sample is ________.
Your input ____
4
GATE CE 2014 Set 1
MCQ (Single Correct Answer)
+1
-0.3
Some of the nontoxic metals normally found in natural water are
Questions Asked from Quality Control of Water (Marks 1)
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
Origin of Soils Definitions and Properties of Soils Classification of Soils and Clay Mineralogy Effective Stress and Permeability Seepage Analysis Compaction of Soil Compressibility and Consolidation Shear Strength of Soil Stress Distribution of Soil Retaining Wall and Earth Pressure Stability of Slopes Shallow Foundation Pile Foundation Soil Stabilization
Fluid Mechanics and Hydraulic Machines
General Aptitude