NICET Special Hazard Suppression Systems

Question 1

Which NFPA standard specifically governs carbon dioxide (CO2) extinguishing systems?

Accepted Answer

NFPA 12

Answer

NFPA 11

Answer

NFPA 17

Answer

NFPA 2001

Question 2

Per NFPA 12, what is the minimum total flooding design concentration of CO2 required to extinguish Class A surface fires?

Accepted Answer

34%

Answer

25%

Answer

50%

Answer

72%

Question 3

Which foam concentrate is specifically formulated to suppress fires involving polar solvents such as alcohols and ketones?

Accepted Answer

AR-AFFF (Alcohol-Resistant AFFF)

Answer

AFFF (Aqueous Film Forming Foam)

Answer

Protein foam

Answer

Fluoroprotein foam

Question 4

Per NFPA 2001, what is the maximum time allowed to achieve the minimum design concentration in a total flooding clean agent system protecting a normally occupied space?

Accepted Answer

10 seconds

Answer

30 seconds

Answer

60 seconds

Answer

120 seconds

Question 5

What is the primary environmental advantage of Novec 1230 (FK-5-1-12) over HFC clean agents such as FM-200 (HFC-227ea)?

Accepted Answer

Significantly lower global warming potential (GWP of 1 vs. 3,220)

Answer

Lower cost per pound

Answer

Requires a lower design concentration

Answer

Faster discharge time

Question 6

Wet chemical fire suppression systems installed in commercial cooking hood applications must comply with which NFPA standard?

Accepted Answer

NFPA 17A

Answer

NFPA 11

Answer

NFPA 12

Answer

NFPA 750

Question 7

Per NFPA 11, what is the typical expansion ratio range for 'high-expansion' foam?

Accepted Answer

200:1 to 1000:1

Answer

2:1 to 10:1

Answer

10:1 to 200:1

Answer

1000:1 to 5000:1