NFPA NFPA 704 Hazardous Materials Identification 2

Question 1

A flammability rating of 4 in NFPA 704 describes a material that:

Accepted Answer

Burns readily at ambient conditions with a flash point below 73°F (22.8°C)

Answer

A flammability rating of 4 indicates materials that rapidly vaporize at normal temperatures, with a flash point below 73°F and a boiling point below 100°F.

Question 2

Which NFPA 704 health rating indicates exposure could cause death?

Accepted Answer

4

Answer

A health rating of 4 indicates that very short exposure could cause death or major residual injury, even with emergency responder protective equipment.

Question 3

A flammability rating of 1 in NFPA 704 applies to materials that:

Accepted Answer

Must be preheated to burn, with a flash point above 200°F (93.3°C)

Answer

A flammability rating of 1 applies to materials that must be preheated before ignition can occur, with flash points above 200°F (93.3°C), such as mineral oil.

Question 4

An instability rating of 3 in NFPA 704 means the material:

Accepted Answer

Can detonate or explode but requires a strong initiating source

Answer

An instability rating of 3 means the material can detonate or explode but requires a strong initiating source such as heat, shock, or detonator.

Question 5

Which NFPA 704 health rating indicates 'extreme danger' where serious injury is likely from short exposure?

Accepted Answer

3

Answer

A health rating of 3 indicates short exposure could cause serious temporary or residual injury, requiring full protective equipment for emergency responders.

NFPA - National Fire Protection Association Practice Test

NFPA - National Fire Protection Association Practice Test

NFPA NFPA 704 Hazardous Materials Identification 2