Free CHMS Mitigation Techniques & Technologies Questions and Answers

Question 1

Which of the following is an example of a structural flood mitigation technique?

Accepted Answer

Building a floodwall or levee

Answer

Structural flood mitigation techniques involve physical construction or engineering projects designed to modify the hazard itself or protect structures from its impact. Building a floodwall or levee is a classic example, as these structures physically block or redirect floodwaters away from developed areas. This contrasts with non-structural methods like zoning or public awareness campaigns.

Question 2

What is the primary benefit of using green infrastructure for stormwater management?

Accepted Answer

Reduces runoff while improving water quality and habitat

Answer

Green infrastructure for stormwater management utilizes natural systems and processes to manage rainwater where it falls. Benefits include reducing the volume and velocity of stormwater runoff, which lessens flood risk, and filtering pollutants to improve water quality. Additionally, green infrastructure projects like rain gardens, permeable pavements, and restored wetlands can enhance local ecosystems and provide habitat.

Question 3

Which seismic mitigation technique is commonly used for unreinforced masonry buildings?

Accepted Answer

Installing steel moment frames or shear walls

Answer

Unreinforced masonry (URM) buildings are particularly vulnerable to seismic activity due to their brittle nature. Common seismic mitigation techniques for URM structures involve strengthening the building to resist lateral forces. Installing steel moment frames or shear walls provides the necessary structural integrity and ductility to absorb and dissipate earthquake energy, preventing collapse and reducing damage.

Question 4

What is the purpose of base isolation in earthquake-resistant design?

Accepted Answer

To absorb and dissipate seismic energy

Answer

Base isolation is an advanced earthquake-resistant design strategy where a building is decoupled from its foundation using flexible bearings or isolators. The primary purpose is to absorb and dissipate the seismic energy from ground motion, preventing it from being transmitted directly into the structure. This significantly reduces the forces acting on the building, minimizing damage and improving occupant safety during an earthquake.

Question 5

Which wildfire mitigation technique focuses on creating defensible space around structures?

Accepted Answer

Clearing vegetation and using fire-resistant landscaping

Answer

Defensible space is a critical wildfire mitigation technique that involves creating a buffer between a structure and potential wildfire fuel. Clearing vegetation and utilizing fire-resistant landscaping within this zone significantly reduces the likelihood of embers igniting the building and slows fire spread. This strategy directly protects structures by limiting the fuel available for a wildfire to reach them.

CHMS - Certified Hazard Mitigation Specialist Practice Test

CHMS - Certified Hazard Mitigation Specialist Practice Test

Free CHMS Mitigation Techniques & Technologies Questions and Answers