Fire Fighting Ces

"A" Class divisions in ships are constructed so that they are capable of preventing the passage of smoke and flame to the end of a standard fire test held for how many minutes? 60 minutes 2380. A class "D" fire involves what type of material? Metals 2381. A drip tray containing oil is on fire. The only fire fighting equipment available is water hose with spray jet/spray nozzle. How, if at all, should you attempt to put out this fire using water? The water can be applied in a fine spray starting from the front in a sweeping motion. 2382. A fire bulkhead of the "C" class must be constructed of: Non-combustible material 2383. According to basic principles regarding fire protection the ship is to be divided in zones by structural and thermal boundaries. (SOLAS II-2/2.2.1) In main vertical zones 2384. According to European standards (E.N.) fire can be classified� A, B,C,D 2385. According to their physical state, extinguishing agents may be classified in to: Solid, liquid and gases 2386. After smoking, cigarettes should be disposed off as follows: Disposed of in an ashtray, ensuring that it is extinguished Among the additives used to improve the effectiveness of water in the fight against fire there are the moisturing ones. What is the task they perform? They reduce the surface tension of water 2388. Apart from red, what other colour is frequently used for a CO2 extinguisher? Black 2389. Apart from red, what other colour is frequently used for a dry powder extinguisher? Blue 2390. As a fire fighter, what should you always consider when fighting a fire in a confined space? The confined space always has six sides 2391. As a general rule, what is the minimum flash point of an oil used as a liquid fuel on board? 60�C \ 2392. As a general rule, where would you expect to find a portable fire extinguisher in any space? Near to the entrance to the space 2393. B Class divisions in ships are constructed so that they are capable of preventing the passage of flame to the end of a standard fire test held for: 30 minutes 2394. Before extinction of an electric fire we need To disconnect the power source 2395. Besides certain other factors, a BOILOVER takes place: When the container also contains water 2396. Breathing apparatuses is an important piece of equipment for being able to fight a fire onboard a vessel. What routine precautions to be observed with regard to use and

maintenance of such equipment? All the mentioned alternatives. 2397. Could a lift be considered as an escape route from the engine room ? No 2398. Dry chemical powders extinguish fire by... Inhibition and smothering 2399. Fire provokes: Gases, flames, smoke and heat For which of the following groups of substances or materials is the use of water as an extinguishing agent dangerous? Sodium hydrosulphite , potassium hydroxide, magnesium 2401. Fuel oil from a leaking fuel pipe has been collected in a drip tray under the boiler furnace.The oil is suddenly ignited by a backflash from the boiler burner.The boiler room is manned and the person present has the choice of various extinguishers. The fire is purely a surface fire. What would be the preferable extinguisher? Powder 2402. Generally speaking, what is the value commonly recognised as the maximum concentration of CO allowed in the breathing air of a breathing apparatus? 20ppm 2403. Generally speaking, what is the value commonly recognised as the maximum concentration of oil vapours allowed in the breathing air of a breathing apparatus? 5mg/m3 2435. How does low expansion foam act as an extinguishing agent when dealing with oil fires? By smothering and also by providing some cooling 2436. How many separate means of escape are provided from each fire zone above the bulkhead deck? At least two 2437. Hydrocarbon gas encountered in oil tankers cannot burn in an atmosphere containing less than approximately what percentage of oxygen (by volume)? 2440. If a fire starts in the fuel tanks of a vessel, the fire will be ? A class B fire 2441. If circumstances permit, how should low expansion foam be applied to oil burning near a bulkhead of the engine room? The foam should be aimed at the bulkhead behind the fire and allowed to spread out slowly over the fire. 2442. If you detect a fire on board the ship, dependent on the situation, which of the following actions is the first to be taken? Raise the fire alarm. 2443. If you have to carry out hot work close to a smoke detector in the engine room, what precautions should be taken? Notify Master, Deck officer and Engineer in charge.The loop for this special sensor to be switched off and take normal precautions for hot work. 2444. In a liquid fire the surface of which is about 100m�, Flames are usually higher than the diameter of the fire 2445. In a smoke filled alleyway where will the cleanest air be found, and how should you proceed out? Near to the deck, crawl out keeping your face as near to the deck as possible. 2446. In case of a fire inside the Acetylene-line in the ac/ox gas welding equipment, what action is deemed necessary?

Close the valves on both the Acetylene and the Oxygen bottles. 2447. In case of a fire on the line of an oxyacetylene gas-welding equipment, what action should be taken? Close the valves on both bottles, first the acetylene and then the oxygen bottle 2448. In case of fire in the switch board, what kind of extinguisant to be preferred? CO2 2449. In general what is the proportion of concentrate to water to produce foam? Between 3% and 6% 2450. In general, what is the best extinguishing agent to put out a class A fire? Water 2451. In order to extinguish a fire with a portable extinguisher, we must proceed in the following way: Maintain a safe distance, apply the extinguishing agent to the base of the flames with the wind behind us 2452. In order to extinguish a flammable liquid of the same kind as alcohol, we can use: Anti-alcohol foam 2453. In the fire fighting of fires of a type C with dry chemical powder extinguishers, the application is performed in a continuous way so that the powder spray is in the same direction as the one of the flame 2454. In which one of the following an oil, the flash point of which only needs to be over 43�C, may be used? In emergency generators 2455. In which ways is heat transmitted? Conduction, convection and radiation 2456. Mention some important thoughts for what you have to do when you recognise that fire break out onboard Report to bridge or duty officer, actuate the fire alarm, call the persons around the fire and join the fire squad 2457. Monoammonium phosphate used as a dry powder can be effective on which of the following type of fire? Solid, liquids, and gases 2458. Oily rags and metal turnings: Are a fire hazard because they are liable to spontaneous combustion 2459. On a fire patrol at night you see smoke coming from a closed cabin door. What action should you take first? Activate the nearest fire alarm button and advise bridge of the location of the fire. 2460. One of the checks during the annual Class survey of the UMS functions is focusing on cleanliness of the engine room. What is the reason for such a check ? To reduce the general risk of fire in an unmanned engine room. 2461. Proteinic foams have the feature of being? Of low expansion, viscous and solid, easily contaminated by hydrocarbons 2462. The aim of fire detection is: All the answers are correct 2463. The basic components of the self-contained breathing apparatus are� Mask, bottle, frame, medium pressure valve and low pressure valve 2464. The duty engineer of a UMS ship is approached by a member of the ship's staff, seeking permission to hang wet working clothes in the engine room to dry. He should:

Not allow the clothes to be hung anywhere in the unmanned machinery spaces 2465. The effectiveness of CO2 as an extinguishing agent is based on: Combustion suppression 2466. The effectiveness of foam is based on: smothering and cooling 2467. The engine room is equipped with regular fire hoses and nozzles. What is important to observe when using water as an extinguisant in the engine room? All the mentioned alternatives. 2468. The extinguishing agent which can be applied on any fires of class A, B, or C is: Multipurpose powder 2469. The fire integrity of any bulkhead shall be maintained At the openings and penetrations 2470. The fire point is The minimum temperature at which a combustible gives off vapours that may burn in contact with oxygen in air, and at which combustion persists once the source of ignition has been removed 2471. The lowest temperature at which a liquid will give off sufficient vapors to form a flammable mixture with air is known as the: Flash point 2472. The main risk for people when using CO2 as an extinguishing agent in a closed space is: Air suppression 2473. The method of extinction by smothering is based on this basis; The fire is extinguished by avoiding the contact between the fuel vapours and the oxygen 2474. The necessary elements to create fire are combustible, oxygen, heat and chain reaction 2475. The presence of smoke represents one of the greatest dangers in the fire fighting. Why? It reduces the visibility, provokes panic, is irritating and may be toxic 2476. The pressure in a flexible fire hose must be set up After it has been laid down 2477. The superstructure and deck houses of passenger ships carrying more than 36 passengers shall be divided into main vertical zones by Class "A" division 2478. The use of combustible material is restricted in the accommodation spaces in order to: Contain and suppress fire and explosion in the compartment of origin 2479. To maintain a fire, three conditions need to be met: Oxygen, combustible material and sufficient temperature for combustion. What subject must be removed to extinguish the fire? Either of the mentioned alternatives. 2480. Water is the extinguishing agent which is the most widely employed and its action as an extinguishing agent is due to a combination of the following phenomena: Cooling, smothering and dispersion 2481. We must clean the spots of oil on hot surfaces because: all the answers are correct 2482. Welding and flame cutting are among the factors which give the highest risk of fire on board ships. Precaution has to be taken to avoid this risk. Which of the following safety rules may be regarded as the most important?

The welder shall have been instructed in the use of the ship's welding plant 2483. What are class "C" bulkheads? Bulkheads constructed of approved non-combustible materials but do not meet any of the requirements relative to smoke and flame nor limitations relative to temperature rise. 2484. What are the characteristics of CO2? All the mentioned alternatives. 2485. What are the components of the personal equipment of the fireman's outfit All the items mentioned 2486. What are the main basic components of a portable extinguisher? The container, the extinguishing agent, the impulsion system 2487. What are the main components of the atmospherical air? O2: 21% N2: 78% H2O: traces CO2: traces, Rare gases: traces 2488. What are the three diameters of fire hoses most commonly found on ships? 25, 45, or 70 mm 2489. What class of fire involves gas? Class C fire 2490. What class of fire involves liquids? Class B fire 2491. What class of fire is a smouldering fire of wood, textiles, paper and other carbonaceous materials? Class A 2492. What is a polar (liquid)? A liquid that mixes with water 2493. What is class "A" division Bulkhead constructed of steel, suitably stiffened and insulated so as to be able to meet a prescribed fire test of one hour duration 2494. What is flashpoint of an oil or liquefied gas? The flash point for an oil or liquefied gas is the temperature at which it is possible to ignite the vapour above the liquid 2495. What is the "international shore connection" used for? To connect the ship fire main to the shore lines 2496. What is the absolutely main purpose with fighting a fire on board? Rescuing of life 2497. What is the factor that makes the difference between a deflagrating and a detonating explosion? The speed of the shock wave created by the initial combustion 2498. What is the inherent danger in welding/cutting in piping containing freon? Development of nitrous gases? 2499. What is the main advantage of a positive pressure breathing apparatus? If the face mask has a leak toxic fumes/smoke would still not enter the mask 2500. What is the main criterion generally taken into account to classify portable extinguishers: The extinguishing agent 2501. What is the maximum length of a fire zone on any deck? 40 meters 2502. What is the minimum capacity of the portable tank of a portable foam applicator ? 1 litre 2503. What is the minimum necessary condition for the start and permanence of an oil fuel fire? The temperature is equal to or over the flash point 2504. What is the minimum volume of air contained in the cylinders of a SOLAS compliant self-contained compressed-air operated breathing apparatus (SCABA)? 1200 litres

2505. What is the most common fixed fire fighting extinguishing system fitted in an engine room? A carbon dioxide (CO2) system 2506. What is the name given to a devastating explosion that may occur when a rigid container containing a liquefied gas is exposed to a very high *temperature? BLEVE 2507. What is the only reliable way of checking that the CO2 cartridge in a dry powder extinguisher is full? Remove the cartridge and weigh it to check that it has the full weight stamped on it 2508. What is the signal actuated by a fire detection system? A visual and audible alarm signal at the control panel 2509. What is the term used to designate the work that may cause heat, sparks or flames and that cannot be performed if specific compulsory precautions are not taken in places where nearby flammable products could be present? Hot work 2510. What kind of extinguishing-remedy would you choose to put out an electrical fire? Dry extinguishing remedy. 2511. What kind of fuel will originate a class A fire? a solid (cardboard or wood�) 2512. What kind of measure is the division of the vessel in upright areas by using thermic and structural separations? It is both a prevention and protection measure 2513. What kind of process is a fire? All the mentioned alternatives 2514. What type of construction material should be avoided regarding fire protection purposes? (SOLAS II-2/2.2.3) All combustible materials 2515. What type of fire integrity must be provided for an engine control room ? A 60 2516. What type of nozzles for fire hoses can be provided aboard ships? Dual purpose (jet/spray) type incorporating a shutoff 2517. What types of fire extinguishers shall be used in the engine room? Fire extinguishers equipped for powder or CO2 only. 2518. When at sea, you discover that the bilges in the engine room have a large quantity of oil residues floating around. What action should you take? Notify Chief Engineer, find cause of leakage, remedy the leakage and then immediately start to clean the bilges 2519. When fighting fire, why shall you never pour water into hot fat? The water will explode into steam causing hot fat to be thrown far away thus possibly causing severe burns or fire. 2520. Where is the International Shore Connection to be stored? Easy accessible by the gangway 2521. Where would you find out which fire sections are enclosed by "A" or "B" class divisions on a ship? On the Ship's fire control plans 2522. Which activity will have the greatest fire-fighting effect in case of a fire? Extinguishing attempt is started immediately 2523. Which deck is the "bulkhead deck"? The uppermost deck to which transverse bulkheads are carried 2524. Which element must be removed to extinguish a fire?

All alternatives. It is enough that one of the mentioned elements are removed. 2525. Which of the following actions will most effectively prevent fire in a cabin? Ensuring that all persons avoid smoking in bed. 2526. Which of the following are frequent causes of fires in accommodation? 1 Smoking in bed. 2 Covering of electric fires with blankets. 3 Overloading electric plugs. 2527. Which of the following hose lengths corresponds best to the most common ones found onboard? 20 m 2528. Which of the following is a characteristic that is required for a "class A" bulkhead or deck? It stops the spreading of smoke and flames during one hour 2529. Which of the following is a combustion reaction? All the answers are good 2530. Which of the following is a precautionary measure to prevent fire in general: All the answers are good 2531. Which of the following may cause a fire in the accommodation spaces? All the mentioned alternatives 2532. Which of the following measures should be applied when hot work is to be undertaken in a harbour. To have a hot-work permit 2533. Which of the following measures should rather be considered as a prevention measure than as a protection measure? Restriction in the usage of combustible materials 2534. Which of the following statements applies to fire doors in main vertical zone bulkheads and stairway enclosures in passenger ships? All the alternatives are correct 2535. Which of these series of sizes corresponds to the international standard for nozzles 12 mm, 16 mm and 19 mm 2536. Which one of the following appliances is allowed to burn an oil fuel, the flash point of which may be a little bit lower than the one used for the main *engine? The emergency generators 2537. Which one of the following is a limitation on the use of chemical powders? All the below mentioned alternatives 2538. Which one of the listed fire-extinguishing medium is most effective against an open oil fire? Foam 2539. Which one of the listed fire-extinguishing medium is to be preferred to fight a fire in an electric installation (for example the main switchboard)? Powder.