Environmental Engineering - Part 1 Online Exam Quiz
Environmental Engineering - Part 1 GK Quiz. Question and Answers related to Environmental Engineering - Part 1. MCQ (Multiple Choice Questions with answers about Environmental Engineering - Part 1
Suspended solid present in the waste water generated in blast furnace gas cooling and cleaning plant is removed by
Options
A : biological oxygen pond.
B : radial settling tank (thickener) using coagulant (lime & ferrous sulphate).
C : lagoons.
D : filtration.
Persons working in cement plants and limestone quarries are more prone to disease like
Options
A : cancer
B : asthma
C : silicosis
D : flourosis (bone disease)
Particulates (< 1?m size) remaining suspended in air indefinitely and transported by wind currents are called
Options
A : fumes
B : mists
C : smoke
D : aerosols
Operating principle of cyclone separator is based on the action of __________ dust particles.
Options
A : diffusion of
B : centrifugal force on
C : gravitational force on
D : electrostatic force on
Exposure to small amount of __________ results in high blood pressure & heart disease in human beings.
Options
A : hydrogen sulphide
B : mercury
C : cadmium
D : asbestos
Maximum allowable concentration of CO 2 in air for safe working is __________ ppm (parts per million).
Options
A : 50
B : 1000
C : 2000
D : 5000
Tolerable limit of nitrogen oxides in air is __________ ppm.
Options
A : 0.1
B : 1
C : 5
D : 25
Iron & manganese present as pollutant in water can not be removed by
Options
A : ion exchange process.
B : oxidation followed by settling & filtration.
C : lime soda process or manganese zeolite process.
D : chlorination.
In water chemical treatment plant, use of chloramines ensures
Options
A : disinfection.
B : taste & odour control.
C : weed control in reservoirs.
D : removal of permanent hardness.
Which of the following is the common pollutant emitted from metallurgical smelters, thermal power plant and cement plants ?
Options
A : NO x
B : Hg
C : SO 2
D : F
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