FE FE Recharging & Hydrostatic Testing

Question 1

Under NFPA 10, how often must stored-pressure dry chemical extinguishers with stainless steel shells undergo hydrostatic testing?

Accepted Answer

Every 12 years

Answer

Every 5 years

Answer

Every 6 years

Answer

Every 10 years

Question 2

What is the required hydrostatic test interval for CO2 fire extinguishers?

Accepted Answer

5 years

Answer

6 years

Answer

10 years

Answer

12 years

Question 3

After a fire extinguisher has been used partially, what is the correct action per NFPA 10?

Accepted Answer

Recharge immediately regardless of how much agent was used

Answer

Return to service if gauge still reads in the green

Answer

Replace the pull pin and return to service

Answer

Leave it in service until annual inspection

Question 4

What test is required before recharging a fire extinguisher that has been discharged but is past its hydrostatic test date?

Accepted Answer

Hydrostatic test before recharging

Answer

Leak test only

Answer

Visual inspection only

Answer

Weight verification only

Question 5

Which type of portable fire extinguisher requires internal examination at every 6-year interval?

Accepted Answer

Stored-pressure dry chemical extinguishers

Answer

CO2 extinguishers

Answer

Wet chemical extinguishers

Answer

Halotron extinguishers

Question 6

When recharging a dry chemical extinguisher, what must always be done before applying nitrogen pressure?

Accepted Answer

Verify the valve stem O-ring is seated and the fill cap is secure

Answer

Heat the cylinder to 70°F

Answer

Weigh the empty cylinder only

Answer

Paint the cylinder with current date