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Dhaka WASA Supply & Sewerage Authority (DWASA) || Assistant Engineer (02-03-2024) || 2024

টেকনিক্যাল

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টেকনিক্যাল

the center of gravity of the body and the meta center
the center of gravity of the body and the center of buoyancy
the center of gravity of the body and the center of pressure
center of buoyancy and metacenter.
maximum at noon
minimum at noon
maximum at midnight
same throughout the day
maximum flow only
minimum flow only
average flow only
maximum and minimum flow
Created: 2 months ago | Updated: 2 months ago
helps growth of bacterias
impedes growth of algae
increases dissolved oxygen content
reduces turbidity.
calcium sulphate
magnesium sulphate
calcium nitrate
calcium bicarbonate
The sewage when running full from inside, is called internal pressure
The internal pressure if any, causes tensile stress in the pipe material
Pressure sewers are designed to be safe in tension
All the above
Mean radius of sewer
Difference in heads between two points in circular pipes
Mean of radii in a pipe line of varying cross-sections
Cross-sectional area/wetted perimeter
Decreasing the lever arm
Increasing the total perimeter of bars
Replacing larger bars by greater number of small bars
Replacing smaller bars by greater number of greater bars
Lateral reinforcement in R.C.C. columns is provided to prevent the longitudinal reinforcement from buckling
Lateral reinforcement prevents the shearing of concrete on diagonal plane
Lateral reinforcement stops breaking away of concrete cover, due to buckling
All the above
Its dimensions are not decided from the diagonal tensile stress
Large size of long beams carrying large shear force need not be adopted
Removal of cracks in the members due to shrinkage
All the above