NFPA NFPA 10 Portable Fire Extinguishers 3

Question 1

Under NFPA 10, what condition automatically requires a fire extinguisher to be hydrostatically tested?

Accepted Answer

After any use, full or partial discharge

Answer

NFPA 10 requires that any extinguisher that has been used, even partially, be subjected to maintenance and potentially hydrostatic testing before being returned to service.

Question 2

According to NFPA 10, which extinguisher type is most appropriate for a computer server room?

Accepted Answer

CO2 or clean agent

Answer

NFPA 10 recommends CO2 or clean agent extinguishers for areas with sensitive electronic equipment because they leave no residue.

Question 3

Under NFPA 10, what does the letter-number rating '2-A:10-B:C' on a fire extinguisher indicate?

Accepted Answer

Class A rating of 2, Class B rating of 10, and rated for Class C fires

Answer

The rating 2-A:10-B:C means the extinguisher has a Class A rating equivalent to 2.5 gallons of water, a Class B rating for 10 square feet, and is safe for Class C fires.

Question 4

According to NFPA 10, when must a fire extinguisher be removed from service regardless of its condition?

Accepted Answer

When its nameplate is removed or illegible

Answer

NFPA 10 requires removal from service of any extinguisher whose nameplate or operating instructions are missing or illegible.

Question 5

Under NFPA 10, what is the minimum extinguisher rating required for a light hazard occupancy receiving a single Class A extinguisher unit?

Accepted Answer

2-A

Answer

NFPA 10 requires a minimum 2-A rated extinguisher for light hazard occupancies when using a single unit per area.

NFPA - National Fire Protection Association Practice Test

NFPA - National Fire Protection Association Practice Test

NFPA NFPA 10 Portable Fire Extinguishers 3