1. Carbon dioxide __ (is or is not)effective on Class B and Class C fires. 2. Halogenated hydrocarbons are identified through a system of __ numbers. 3. Two typical inspection items for portable fire extinguishers are: a. __ b. __ 4. HRD extinguishing systems are discharged by an electrically ignited discharge cartridge called a __ 5. If an installed fire extinguishing system has been discharged by normal operation the __ (red or yellow) blowout disk will be ruptured. 6. Almost all type of fire extinguisher containers require __ to determine the amount of extinguishing agent. 7. Fire extinguisher containers must be hydrostatically tested every __ years. 8. If a discharge cartridge is removed from a discharge valve,it __ (may or may not)be used in another discharge valve assembly.

1. Carbon dioxide **is** effective on Class B and Class C fires.<br /><br />2. Halogenated hydrocarbons are identified through a system of **Halons** numbers.<br /><br />3. Two typical inspection items for portable fire extinguishers are:<br /> a. **Pressure gauge check**<br /> b. **Physical condition inspection**<br /><br />4. HRD extinguishing systems are discharged by an electrically ignited discharge cartridge called a **squib**.<br /><br />5. If an installed fire extinguishing system has been discharged by normal operation, the **red** blowout disk will be ruptured.<br /><br />6. Almost all types of fire extinguisher containers require **weighing** to determine the amount of extinguishing agent.<br /><br />7. Fire extinguisher containers must be hydrostatically tested every **5** years.<br /><br />8. If a discharge cartridge is removed from a discharge valve, it **may not** be used in another discharge valve assembly.