CFM EXAM PREP 2025 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's the major cause of coastal flooding? - ....ANSWER ...-
Storm surge
List the five types of special flood hazards covered in this course. -
....ANSWER ...-1. Closed basin lakes
2. Uncertain flow paths
3. Dam breaks
4. Ice jams
...COPYRIGHT ©️ 2025... ALL RIGHTS RESERVED... 1
,5. Mudflows
List at least three benefits that floodplains, in a relatively undisturbed
condition, actually contribute or could contribute to your community. -
....ANSWER ...-- Aesthetic pleasure
- Reducing the number and severity of floods
- Help maintain water quality by filtering nutrients and impurities from
runoff
- Help to protect habitats for rare and endangered species
- Recreational opportunities
List the three categories shallow flood problems fall into. -
....ANSWER ...-1. Sheet flow
2. Ponding
3. Urban drainage
List the two types of closed basin lakes. - ....ANSWER ...-1. Lakes
with no outlets
2. Lakes with inadequate, regulated or elevated outlets
...COPYRIGHT ©️ 2025... ALL RIGHTS RESERVED... 2
, List the three hazards associated with alluvial fans. -
....ANSWER ...-1. Velocity of floodwaters and the debris they
carry
2. Sediment and debris deposited by the floodwaters
3. The potential for the channel to move across the fan during the flood
What two problems result from floodplain development? -
....ANSWER ...-1. Development alters the floodplain and the
dynamics of flooding
2. Building 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 and erosion? - ....ANSWER ...-It can
accelerate erosion on properties at the end of the wall
...COPYRIGHT ©️ 2025... ALL RIGHTS RESERVED... 3
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's the major cause of coastal flooding? - ....ANSWER ...-
Storm surge
List the five types of special flood hazards covered in this course. -
....ANSWER ...-1. Closed basin lakes
2. Uncertain flow paths
3. Dam breaks
4. Ice jams
...COPYRIGHT ©️ 2025... ALL RIGHTS RESERVED... 1
,5. Mudflows
List at least three benefits that floodplains, in a relatively undisturbed
condition, actually contribute or could contribute to your community. -
....ANSWER ...-- Aesthetic pleasure
- Reducing the number and severity of floods
- Help maintain water quality by filtering nutrients and impurities from
runoff
- Help to protect habitats for rare and endangered species
- Recreational opportunities
List the three categories shallow flood problems fall into. -
....ANSWER ...-1. Sheet flow
2. Ponding
3. Urban drainage
List the two types of closed basin lakes. - ....ANSWER ...-1. Lakes
with no outlets
2. Lakes with inadequate, regulated or elevated outlets
...COPYRIGHT ©️ 2025... ALL RIGHTS RESERVED... 2
, List the three hazards associated with alluvial fans. -
....ANSWER ...-1. Velocity of floodwaters and the debris they
carry
2. Sediment and debris deposited by the floodwaters
3. The potential for the channel to move across the fan during the flood
What two problems result from floodplain development? -
....ANSWER ...-1. Development alters the floodplain and the
dynamics of flooding
2. Building 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 and erosion? - ....ANSWER ...-It can
accelerate erosion on properties at the end of the wall
...COPYRIGHT ©️ 2025... ALL RIGHTS RESERVED... 3
