15.20 Fire Protection Systems

Câu 399. A fire wire is installed.(Level 1)

• A. To withstand inertia, vibration, etc, encountered during normal operation.
• B. Vertically.
• C. Horizontally.

Câu 400. Resistive and capacitive type firewires are tested with.(Level 1)

• A. Megger/voltmeter.
• B. Megger/ohmmeter.
• C. Multimeter.

Câu 401. Fire wire clips have rubber in them to.(Level 1)

• A. Stop heat transfer to the element.
• B. Insulate the fire wire electrically.
• C. Support the wire.

Câu 402. Fire extinguishers work by.(Level 1)

• A. Combining with remaining oxygen to get rid of it.
• B. Creating more oxygen.
• C. Reducing oxygen.

Câu 403. Fire detection systems which are routed through another zone.(Level 1)

• A. Must be protected by the use of heat sinks.
• B. Must be protected from heat sources in the zone.
• C. Are not allowed.

Câu 404. What is the operating principle of the spot detector sensor in a fire detection System?.(Level 2)

• A. A conventional thermocouple that produces a current flow.
• B. A bimetallic thermoswitch that closes when heatedto a high temperature.
• C. Resistant core material that prevents current flow at normal temperatures.

Câu 405. In a fixed fire-extinguishing system, there are two small lines running from The system and exiting overboard. These line exit ports are covered with a Blowout type indicator disc. Which of the following statements is true?.(Level 2)

• A. When the red indicator disc is missing, it indicates the fire extinguishing System has been normally discharged.
• B. When the green indicator disc is missing, it indicates the fire extinguishing System has had a thermal discharge.
• C. When the yellow indicator disc is missing, it indicates the fire extinguishing System has been normally discharged.

Câu 406. Two continuous-loop fire detection systems that will not test due to a broken Detector element are the.(Level 2)

• A. Thermocouple system and the Lindberg system.
• B. Kidde system and the Fenwal system.
• C. Kidde system and the Lindberg system.

Câu 407. Which of the following fire detection systems measures temperature rise Compared to a reference temperature?.(Level 2)

• A. Lindberg continuous element.
• B. Thermocouple.
• C. Thermal switch.

Câu 408. A fire involving energized electrical equipment is defined as a.(Level 1)

• A. Class B fire.
• B. Class D fire.
• C. Class C fire.