Quiz Rules
1. Select the correct answer below for each question 2. When complete, click the "Send in the Quiz" button at the end of the quiz 3. You may attempt this quiz only three times.
1. Which class of fire does not have a numerical rating prior to the letter designation?
a. Class C
b. Class D
c. Class K
d. All of the above
2. Which label(s) are permitted on the front of an extinguisher?
a. MHIS Label
b. Instruction Label
c. Warning labels
3. Fire extinguishers for use in commercial kitchens must have a class K designation. These extinguishers can be either wet chemical type or dry chemical type
a. True
b. False
4. If an extinguisher passes the 6 year maintenance requirement, a metallic label on the shell, an internal marking or label on the siphon tube and a verification of service collar must be placed on the extinguisher.
5. Carbon Dioxide hoses with a discharge valve must be tested to...
a. 5/3 the service pressure of the CO2 extinguisher
b. 1500 PSI
c. 1250 PSI
d. Does not require a hydrostatic test
6. A Carbon Dioxide extinguisher which fails the hydrostatic test...
a. Can be re-tested a second time
b. Can be re-tested a second time at 10% or 100 PSI higher pressure
c. Can be re-tested only after waiting 24 hours
d. Cannot be retested
7. Which extinguisher should not be used to extinguish fires involving oxidizers?
a. Regular dry chemical types
b. Carbon Dioxide
c. Halon 1211
d. None of the above
8. A listed closed recovery system for Halon 1211 extinguishers does not require...
a. Clear sight glass for monitoring the cleanliness of the agent.
b. A method for determining if water content in the agent is exceeded.
c. A pressure venting device for venting the nitrogen pressurizing agent.
d. A mechanical filter to remove excess water from the agent.
9.Which of the following conditions would exempt a DOT-3A or 3AA cylinder from receiving a five pointed star after the retester's DOT mark?
a. 125 lb water capacity
b. Cylinder used exclusively for ethylene
c. Stand alone cylinder
d. Not used for underwater breathing
10. Hose assemblies that pass a hydrostatic test require a label or stamping on the coupling.
a. True.
b. False.
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