NFPA NFPA 30 Flammable and Combustible Liquids 3

Question 1

Under NFPA 30, which type of vent pipe is required on an above-ground atmospheric storage tank containing Class I liquids?

Accepted Answer

Flame arrester or pressure-vacuum vent

Answer

NFPA 30 requires above-ground atmospheric tanks storing Class I liquids to be equipped with a flame arrester or pressure-vacuum vent to prevent ignition of vapors.

Question 2

According to NFPA 30, what is the minimum distance between a flammable liquid dispensing station and any ignition source?

Accepted Answer

20 feet

Answer

NFPA 30 requires a minimum separation of 20 feet between flammable liquid dispensing operations and potential ignition sources.

Question 3

Under NFPA 30, what is the definition of a 'flammable liquid' based on flash point?

Accepted Answer

Flash point below 100°F

Answer

NFPA 30 defines a flammable liquid as one with a flash point below 100°F, distinguishing it from combustible liquids which have higher flash points.

Question 4

According to NFPA 30, what is required when a leak is detected in an underground storage tank system?

Accepted Answer

Immediately stop use and notify the regulatory authority

Answer

NFPA 30 requires that the system be immediately taken out of service and the appropriate regulatory authority be notified when a tank leak is detected.

Question 5

Under NFPA 30, what must be posted near flammable liquid storage or dispensing areas?

Accepted Answer

'No Smoking' or 'No Open Flames' signs

Answer

NFPA 30 requires 'No Smoking' and 'No Open Flames' warning signs to be prominently posted in flammable liquid storage and dispensing areas.

NFPA - National Fire Protection Association Practice Test

NFPA - National Fire Protection Association Practice Test

NFPA NFPA 30 Flammable and Combustible Liquids 3