Floods MCQ Multiple Choice Questions Answers | Quiz for Practice

Q: 3. Flooding in London is prevented by

Correct Answer is: a barrier that is raised and lowered

Q: 4. What is a flash flood?

Correct Answer is: Power lines fallen in flood waters

Q: 5. The tsunami that killed over 250,000 people in south and southeast Asia in 2004 was caused by

Correct Answer is: an earthquake

Q: 7. The Probable Maximum Flood is:

Correct Answer is: an estimation of the largest possible flood that could occur at a particul ar location

Q: 8. Which is not a characteristic of a regional flood?

Correct Answer is: A small drainage basin.

Q: 11. Which of the following is not a characteristic of a braided stream?

Correct Answer is: constant discharge

Q: 12. Which of the following potentially affects the size of a flood?

Correct Answer is: all of the above

Q: 13. Flash floods are often caused

Correct Answer is: by thunderstorms

Q: 14. Flood can not occur due to

Correct Answer is: Biological disaster

Q: 15. In ancient Egypt the Nile River

Correct Answer is: brought nutrients that made the fields fertile

Practice Floods Multiple Choice Questions (MCQs) to enhance your understanding and test your knowledge on this critical environmental topic. Ideal for students and exam aspirants, these questions cover a wide range of concepts and scenarios.

About Floods MCQ Questions

Floods MCQs cover essential topics such as the causes, types, impacts, and prevention methods of floods. These questions delve into the hydrological cycle, natural and human-induced factors, and the environmental and social consequences of flooding. By practicing these MCQs, you will gain a comprehensive understanding of how floods occur and how they can be managed.

Why Practice Floods Objective Questions?

Practicing Floods MCQs offers numerous benefits. It helps you prepare for school and college exams, competitive exams, and job interviews. These questions are designed to reinforce your knowledge, improve your problem-solving skills, and ensure you are well-prepared for any assessment. Regular practice also aids in concept revision and builds confidence in your understanding of flood-related issues.

Who Should Use These MCQs?

Students preparing for school or college exams
Competitive exam aspirants
Candidates preparing for interviews

Floods MCQ Questions for Practice

1. How many feet of fast-moving flood water can sweep a vehicle away?

3 feet
2 feet
4 feet

2. How many inches of fast-moving flood water can knock you off your feet?

6 inches
8 inches
10 inches

3. Flooding in London is prevented by

a barrier that is raised and lowered
gates in the western part of the city
westerly winds
high dams along the Themes

4. What is a flash flood?

A sophisticated flood
Power lines fallen in flood waters
A deep flood
A flood that happens fast with little warning

5. The tsunami that killed over 250,000 people in south and southeast Asia in 2004 was caused by

a volcanic explosion
an earthquake
a hurricane
a tropical storm

6. The flooding of New Orleans in 2004 was caused by

an earthquake
a tsunami
a hurricane
a tornado

7. The Probable Maximum Flood is:

an estimation of the largest possible flood that could occur at a particul ar location
the maximum flood experienced in the last 100 years
the maximum flood experienced in the last 200 years
the maximum flood experienced since flood records have existed

8. Which is not a characteristic of a regional flood?

An extended rise of river elevation for weeks to months
Large storm systems or an extended period of rainfall
A small drainage basin.
Floodplains covered with floodwaters

9. The change in elevation of a stream per unit length is called

base level
gradient
velocity
discharge

10. The lowest level to which a stream may erode is called

base level
gradient
velocity
discharge

11. Which of the following is not a characteristic of a braided stream?

branching channels
high gradient
abundant bed load
constant discharge

12. Which of the following potentially affects the size of a flood?

bridges and other structures in waterways
the size and windiness of a river
vegetation in and around a river
all of the above

13. Flash floods are often caused

by thunderstorms
dikes and dams that are too high
by rainfall over many days
by river beds that are too high

14. Flood can not occur due to

Cyclone
Tsunami
Heavy rain
Biological disaster

15. In ancient Egypt the Nile River

destroyed large areas of farming land every year
had to be regulated because it carried too much water
brought nutrients that made the fields fertile
changed its course almost every year

16. Which of the following is an environmental consequence of floods?

dispersal of weed species
erosion of soil
release of pollutants into waterways
all of the above

17. The process of avulsion causes

downcutting of the riverbed
wider floodplains for the river
slow shifting of the rivers channel
formation of a new course for the river channel

18. The process of avulsion is caused by

erosion of the river channel
buildup of sediment in the river channel
widening of the channel
destruction of natural levees

19. Which is the most common type of disaster in New Zealand?

Floods
Earthquakes
Tsunami
Volcanoes

20. Which of the following should you do in a flood?

Go sight-seeing
Drink the water
Put valuables high up
Water the garden

21. As the discharge in a stream increases, load usually

increases
decreases
stays the same
none of the above

22. A flash flood is a flood that Flood

is caused by heavy rain rather than from the flooding of a river
occurs in urban areas
occurs suddenly and unexpectedly and for a short duration
is caused by the blocking of drains

23. Which of these problems can be caused by floods?

Landslips
Sewage contamination
Destroyed crops
All of the above

24. Urbanization usually results in an increase in flood frequency because

less water is able to runoff in streams
less water is able to infiltrate into the ground,so instead is discharged rapidly i ntostreams
more water is used by humans and then discharged to streams
rainfall is greater in urban areas than in rural areas

25. In the future, which of the following is expected to increase the risk of flooding?

population growth
urbanisation
climate change
all of the above.

26. Dams are designed to reduce flooding by

protecting river banks from erosion
providing storage for flood water
increasing the downstream velocity of flood water
trapping sediment behind the dam so it cant be deposited downstream

27. What factors contribute to flooding?

Rainfall intensity
Rainfall duration
BOTH of the above; rainfall intensity and rainfall duration.

28. A flood can be caused by:

Rising rivers
High tides
Heavy rain in a small area
All of the above

29. Which of the following is used to estimate which areas will be inundated during a flood, based on river height information?

satellite and radar images
flood maps / floodplain hydraulicmodels
river gauging stations
all of the above

30. Which of the following is true? Flood warnings:

should not be released until the information is certain
should indicate what the threat is, what action should be taken, by whom and when
are best if they come from a single source
all of the above