Explore topic-wise MCQs in Environmental Engineering.

This section includes 6 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.

If the diameter of pumping mains decreases, then the total dynamic head will increase.

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

The efficiency of the pump at quarter load is ____________

A. 50%
B. 70%
C. 80%
D. 100%
Answer» B. 70%
Discussion
3.

The efficiency of the pump at half load is ____________

A. 50%
B. 70%
C. 80%
D. 100%
Answer» C. 80%
Discussion
4.

When the pumps are in series operation?

A. H = H<sub>1</sub> + H<sub>2</sub>
B. 1/H = 1/H<sub>1</sub> +1/ H<sub>2</sub>
C. Q = Q<sub>1</sub> + Q<sub>2</sub>
D. 1/Q = 1/Q<sub>1</sub> + 1/Q<sub>2</sub>
Answer» B. 1/H = 1/H<sub>1</sub> +1/ H<sub>2</sub>
Discussion
5.

When the pumps are in parallel operation?

A. H = H<sub>1</sub> + H<sub>2</sub>
B. 1/H = 1/H<sub>1</sub> +1/ H<sub>2</sub>
C. Q = Q<sub>1</sub> + Q<sub>2</sub>
D. 1/Q = 1/Q<sub>1</sub> + 1/Q<sub>2</sub>
Answer» D. 1/Q = 1/Q<sub>1</sub> + 1/Q<sub>2</sub>
Discussion
6.

The plot of total dynamic head and discharge of a pump is called ____________

A. Dynamic head curve
B. System head curve
C. Pump curve
D. Discharge curve
Answer» C. Pump curve
Discussion