Explore topic-wise MCQs in Environmental Engineering.

This section includes 20 Mcqs, each offering curated multiple-choice questions to sharpen your Environmental Engineering knowledge and support exam preparation. Choose a topic below to get started.

1.

The zeolite process is unsuitable for water containing iron and manganese.

A. True
B. False
Answer» B. False
Discussion
2.

Which of the following is a disadvantage of the zeolite process?

A. No sludge is formed
B. The process is almost automatic
C. Suspended impurities get deposited around the zeolite particles
D. Zero hardness can be occurred
Answer» D. Zero hardness can be occurred
Discussion
3.

The thickness of the layers of filter sand of zeolite softener is ____________

A. 20cm
B. 30cm
C. 40cm
D. 100cm
Answer» E.
Discussion
4.

Permutit has an exchange value of ________ grams of hardness per m3 of zeolite.

A. 10,000
B. 20,000-30,000
C. 35,000-40,000
D. 40,000-50,000
Answer» D. 40,000-50,000
Discussion
5.

The chemical formula of Permutit is ____________

A. SiOAl2O3Na2O
B. SiO2Al2O3Na2O
C. SiO2Al2O3NaO
D. SiO3Al2O3Na2O
Answer» C. SiO2Al2O3NaO
Discussion
6.

The color of the natural zeolite is ____________

A. Green
B. Grey
C. Black
D. Blue
Answer» B. Grey
Discussion
7.

Natural zeolite is mainly processed from ____________

A. White sand
B. Green sand
C. Grey sand
D. Red sand
Answer» C. Grey sand
Discussion
8.

The color of the artificial zeolite permutit is ____________

A. Grey
B. Yellow
C. Green
D. White
Answer» E.
Discussion
9.

Zeolites are complex compound of ____________

A. Aluminium and lime
B. Silica and soda
C. Aluminium, silica and soda
D. Lime and soda
Answer» D. Lime and soda
Discussion
10.

THE_THICKNESS_OF_THE_LAYERS_OF_FILTER_SAND_OF_ZEOLITE_SOFTENER_IS?$

A. 20cm
B. 30cm
C. 40cm
D. 100cm
Answer» E.
Discussion
11.

State whether the following statement is true or false$

A.
B. True
Answer» B. True
Discussion
12.

Which_of_the_following_is_a_disadvantage_of_zeolite_process?$

A. No sludge is formed
B. The process is almost automatic
C. Suspended impurities get deposited around the zeolite particles
D. Zero hardness can be occurred
Answer» D. Zero hardness can be occurred
Discussion
13.

Permutit has an exchange value of ________ grams of hardness per m3 of zeolite?

A. 10,000
B. 20,000-30,000
C. 35,000-40,000
D. 40,000-50,000
Answer» D. 40,000-50,000
Discussion
14.

The chemical formula of Permutit is

A. SiOAl<sub>2</sub>O<sub>3</sub>Na<sub>2</sub>O
B. SiO<sub>2</sub>Al<sub>2</sub>O<sub>3</sub>Na<sub>2</sub>O
C. SiO<sub>2</sub>Al<sub>2</sub>O<sub>3</sub>NaO
D. SiO<sub>3</sub>Al<sub>2</sub>O<sub>3</sub>Na<sub>2</sub>O
Answer» C. SiO<sub>2</sub>Al<sub>2</sub>O<sub>3</sub>NaO
Discussion
15.

The color of the natural zeolite is

A. Green
B. Grey
C. Black
D. Blue
Answer» B. Grey
Discussion
16.

Natural zeolite are mainly processed from

A. White sand
B. Green sand
C. Grey sand
D. Red sand
Answer» C. Grey sand
Discussion
17.

The color of the artificial zeolite permutit is

A. Grey
B. Yellow
C. Green
D. White
Answer» E.
Discussion
18.

Zeolites are complex compound of

A. Aluminium and lime
B. Silica and soda
C. Aluminium, silica and soda
D. Lime and soda
Answer» D. Lime and soda
Discussion
19.

In which process of water softening, the chemicals are added to remove hardness from water?

A. Lime soda process
B. Zeolite process
C. Boiling
D. Demineralization process
Answer» B. Zeolite process
Discussion
20.

In which process of water softening, ion exchange phenomenon takes place?

A. Lime soda process
B. Zeolite process
C. Boiling
D. Demineralization process
Answer» C. Boiling
Discussion