NFPA NFPA 704 Hazardous Materials Identification 3

Question 1

In NFPA 704, the symbol 'W' with a horizontal line through it (W̄) in the white section indicates:

Accepted Answer

The material reacts dangerously or unusually with water

Answer

The W with a bar through it indicates that the material reacts with water in an unusual or dangerous manner, warning responders not to use water for firefighting.

Question 2

What does the symbol 'OX' or 'OXY' in the white section of an NFPA 704 diamond indicate?

Accepted Answer

The material is an oxidizer that can intensify fires

Answer

OX or OXY in the white section identifies the material as an oxidizer, which can cause or enhance combustion of other materials and may react violently with fuels.

Question 3

What is the primary purpose of the NFPA 704 standard?

Accepted Answer

To provide emergency responders with immediate visual hazard identification

Answer

NFPA 704 is designed to give emergency responders quick, visual identification of hazards during fires or spills so they can take appropriate protective action.

Question 4

Where is the NFPA 704 placard most commonly and appropriately displayed?

Accepted Answer

On stationary containers, storage tanks, and building entrances where hazardous materials are stored or used

Answer

NFPA 704 placards are placed on fixed facilities such as storage tanks, containers, and buildings to alert emergency responders before they enter a hazardous area.

Question 5

What does the symbol 'SA' in the white section of an NFPA 704 diamond indicate?

Accepted Answer

Simple asphyxiant gas

Answer

SA stands for Simple Asphyxiant and identifies gases such as nitrogen or helium that displace oxygen and can cause suffocation without being otherwise toxic.

NFPA - National Fire Protection Association Practice Test

NFPA - National Fire Protection Association Practice Test

NFPA NFPA 704 Hazardous Materials Identification 3