Explore topic-wise MCQs in Environmental Engineering.

This section includes 16 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.

Which of the following represents the correct relation between displacement velocity and diameter of the particle?

A. v1 = (8Bg (G-1) d/f) 1/2
B. v1 = (8Bg (G-1) d2/f)2
C. v1 = (8Bg (G-1) d/f)
D. v1 = (8Bg (G-1) d/f)2
Answer» B. v1 = (8Bg (G-1) d2/f)2
Discussion
2.

In a fill and draw type sedimentation tank, a detention period of ____ hours is provided.

A. 6
B. 12
C. 18
D. 24
Answer» E.
Discussion
3.

Settling velocity of a spherical body in a viscous fluid is given by ___________

A. Reynolds law
B. Newton’s law
C. Stokes law
D. Charles law
Answer» D. Charles law
Discussion
4.

The time period for which the water is stored in a sedimentation tank is called _____

A. Time of flow
B. Frequency of flow
C. Settling time
D. Detention period
Answer» E.
Discussion
5.

In a rectangular horizontal flow tank, the maximum permissible velocity is ____ m/Sec.

A. 3
B. 0.3
C. 0.03
D. 0.003
Answer» C. 0.03
Discussion
6.

What is the settling velocity of the particle if its diameter is 2 * 10-3cm. Given G=2.65, viscosity v=8 * 10-3cm2/Sec?

A. 0.01cm/Sec
B. 0.13cm/Sec
C. 0.24cm/Sec
D. 0.36cm/Sec
Answer» C. 0.24cm/Sec
Discussion
7.

In which type of sedimentation, flocculent suspension of high concentration takes place?

A. Type I sedimentation
B. Type II sedimentation
C. Type III sedimentation
D. Type IV sedimentation
Answer» E.
Discussion
8.

IN_A_FILL_AND_DRAW_TYPE_SEDIMENTATION_TANK,_A_DETENTION_PERIOD_OF______HOURS_IS_PROVIDED.?$

A. 6
B. 12
C. 18
D. 24
Answer» E.
Discussion
9.

SETTLING_VELOCITY_OF_A_SPHERICAL_BODY_IN_A_VISCOUS_FLUID_IS_GIVEN_BY?$

A. Reynolds law
B. Newton’s law
C. Stokes law
D. Charles law
Answer» D. Charles law
Discussion
10.

Which of the following represents the correct relation between displacement velocity and diameter of the particle?$

A. v1 = (8Bg (G-1) d/f) <sup>1/2</sup>
B. v1 = (8Bg (G-1) d2/f)<sup>2</sup>
C. v1 = (8Bg (G-1) d/f)
D. v1 = (8Bg (G-1) d/f)<sup>2</sup>
Answer» B. v1 = (8Bg (G-1) d2/f)<sup>2</sup>
Discussion
11.

The time period for which the water is stored in a sedimentation tank is called ____?

A. Time of flow
B. Frequency of flow
C. Settling time
D. Detention period
Answer» E.
Discussion
12.

What is the settling velocity of the particle if its diameter is 2 * 10-3cm. Given G=2.65, viscosity v=8 * 10-3cm2/Sec?

A. 0.01cm/Sec
B. 0.13cm/Sec
C. 0.24cm/Sec
D. 0.36cm/Sec
Answer» C. 0.24cm/Sec
Discussion
13.

In which type of sedimentation, flocculent suspension of intermediate concentration takes place?

A. Type I sedimentation
B. Type II sedimentation
C. Type III sedimentation
D. Type IV sedimentation
Answer» D. Type IV sedimentation
Discussion
14.

In which settling type, dilute suspension of particles takes place?

A. Zone settling
B. Compression settling
C. Hindered settling
D. Discrete settling
Answer» D. Discrete settling
Discussion
15.

In which type of settling, sedimentation of discrete particles takes place?

A. Zone settling
B. Compression settling
C. Hindered settling
D. Discrete settling
Answer» E.
Discussion
16.

When impurities are separated by the gravitation of settling particles, the operation is called _____

A. Sedimentation with coagulant
B. Plain sedimentation
C. Secondary sedimentation
D. Disinfection
Answer» C. Secondary sedimentation
Discussion