FEMA 480 UNIT 1 EXAM QUESTIONS AND ANSWERS
/. What are the three most common types of flooding? - Answer-Riverine,
coastal
shallow
/.Which type of flooding has accounted for the most flood-related deaths in recent
history? - Answer-Flash flooding
/.What is a meander? - Answer-A curve or turn in a river channel
/.What is the major cause of coastal flooding? - Answer-Storm surge
/.What causes a tsunami? - Answer-Underwater earthquakes or volcanoes
/.List the 5 types of special flood hazrds - Answer-1. Closed basin lakes,
2. Uncertain flow paths,
3. Dam breaks,
4. Ice jams,
5. Mudflows
/.3 benefits that floodplains, in a relatively undisturbed condition, actually contribute or
could contribute to your community - Answer-- Natural flood and erosion control (Water
resouces)
- Biologic resources and functions (Living resources)
- Societal resources and functions (Societal resources)
/.what 2 problems result from floodplain development? - Answer-Development alters the
floodplain and the dynamics of flooding, Buildings and infrastructure are damaged by
periodic flooding
/.What does watershed development do to flooding - Answer-The increase in
impervious surface results in increased runoff and higher flood levels
/.What is one of the problems with constructing seawalls to protect buildings from
flooding or erosion - Answer-It can accelerate erosion on properties at the end of the
wall
/.What are the 5 main causes of flood damage - Answer-Hydrodynamic forces,
debris impact,
hydro-static forces,
soaking,
/. What are the three most common types of flooding? - Answer-Riverine,
coastal
shallow
/.Which type of flooding has accounted for the most flood-related deaths in recent
history? - Answer-Flash flooding
/.What is a meander? - Answer-A curve or turn in a river channel
/.What is the major cause of coastal flooding? - Answer-Storm surge
/.What causes a tsunami? - Answer-Underwater earthquakes or volcanoes
/.List the 5 types of special flood hazrds - Answer-1. Closed basin lakes,
2. Uncertain flow paths,
3. Dam breaks,
4. Ice jams,
5. Mudflows
/.3 benefits that floodplains, in a relatively undisturbed condition, actually contribute or
could contribute to your community - Answer-- Natural flood and erosion control (Water
resouces)
- Biologic resources and functions (Living resources)
- Societal resources and functions (Societal resources)
/.what 2 problems result from floodplain development? - Answer-Development alters the
floodplain and the dynamics of flooding, Buildings and infrastructure are damaged by
periodic flooding
/.What does watershed development do to flooding - Answer-The increase in
impervious surface results in increased runoff and higher flood levels
/.What is one of the problems with constructing seawalls to protect buildings from
flooding or erosion - Answer-It can accelerate erosion on properties at the end of the
wall
/.What are the 5 main causes of flood damage - Answer-Hydrodynamic forces,
debris impact,
hydro-static forces,
soaking,
