Curioustab

Home » Chemical Engineering » Environmental Engineering

Insufficient washing of sand grains in a rapid sand filter causes

air binding
shrinkage of filtering media
mud balls
expansion of filtering media

Correct Answer: mud balls

← Previous Question Next Question→

More Questions from Environmental Engineering

Out of the following, TLV of __________ is maximum (about 500 ppm).
Reingleman chart is used for the evaluation of __________ pollution.
A 'body' which allows the short wavelength incoming solar radiation to enter in, but does not allow long wave length outgoing infra red radiation to escape out is called the
Carcinogenic air pollutants cause
Very small amount of air pollutants are present in stratosphere also; though most of the atmospheric pollutants are present in the troposphere. Which of the following atmospheric pollutants does not cause the ozone layer depletion in atmosphere at tremendous rate?
Noise level in a quiet private business office is about __________ decibels.
A masonry structure built below ground level, where biochemical reaction takes place due to anaerobic bacteria is called
The detrimental effect on organism and water quality with temperature rise of aquatic system is the reduction of __________ of water.
Deaeration of high pressure boiler feed water is done to reduce
The common pollutant generated in chlor-alkali industry and battery manufacture is

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion