Class B fires are fires in flammable liquids such as gasoline, petroleum greases, tars, oils, oil-based paints, solvents, alcohols. portable fire extinguisher, to carry out the relevant maintenance procedures”. Which type of fire extinguisher should be onboard a vessel with a permanently installed fuel tank? These are classed in 5 groups, Class A, B,C,D and F (or K in the USA): Class A – combustibles such as wood, paper, clothing, trash or anything else that leaves an ash Class B – flammable liquids and gases such as oil and petrol. Do’s And Don’ts When Joining Ship For The First Time, 4th Engineer Work Onboard, Salary, Promotion and How to Become 4th Engineer. These types of fire extinguishers last for around 20 sec only but can depend on the pressure of gas filled in it. This equipment only takes 4 to 5 sec to start and once started it last long for .20 minute duration. He tried to use a fire extinguisher but it didn’t work. Select the true statement regarding class A and B foam fire extinguishers and their use on the unintended class of fire. Capacity of this Equipment is around 9 litres and mainly contains water only. But its reactivity should be ensured in case of Chemical fires. Here are some of the do’s and don’ts that you need to take care while going there. Class B Fires: Flammable Liquids. Class B fires do not include fires involving cooking oils and grease. They are usually used in the accommodations spaces. The quantities of gas can change as per the size of the equipment. When shopping for fire extinguishers, bigger is usually better. 21A. Fires involving solid combustible materials such as wood, textiles, straw, paper, coal etc. According to NFPA 10, the travel distance to a Class K fire extinguisher must not exceed 30 feet. If possible, separate the fuel source from the fire. 4th Engineer being the first promotion in engine department is stumbled upon by lots of responsibilities. However, if you purchase a 50-lb canister, your employees may … The fire caused by lubricating oils and fuels is doused using class B type fire extinguishers. This equipment only takes 4 to 5 sec to start and once started it last long for 1 minute duration. The quantities of gas can change as per the size of the equipment. A personal floatation device CO2 gas is used for pushing water out of the cylinder and it is filled in 120 grams quantity. They are always marked in ‘red color’ and this provides distinction to them. In those days there were no fire sprinklers in the hotel. If yo… Cartridge Operated Dry Chemical. effect on either class of fire. These types of fire extinguishers last for around 60 sec only but can depend on the pressure of gas filled in it. Capacity of this Equipment is around 6/10 Kgs and mainly contains carbon dioxide gas. Squeeze the lever slowly and evenly. Boats and marine vessels of all types can be particular dangerous for fires. Depending upon what type of extinguisher it is, a fire extinguisher may be classified as a controlled product (under WHMIS 1988) or hazardous product (under WHMIS 2015). Combination Class A/B: Use foam and dry chemical agents to extinguish a fire involving both solid materials and flammable liquids as these smother and cool the fire. (e) a pressure vessel that has an internal diameter of 610 mm or less and that is used to store hot water; (f) a pressure vessel that has an internal diameter of 610 mm or less connected to a water pumping system and that contains compressed air which serves as a cushion; (g) a hydropneumatic tank that has an internal diameter of 610 mm or less; No single extinguisher can be used to tackle every fire, and because each type of fire extinguisher has different classes of fire on which it is effective, selection can be a minefield. This equipment only takes 4 to 5 sec to start and once started it last long for .20 minute duration. The second approach is increasing the mass ratio by reducing the spacecraft's dry mass. A. Class B. Answering these common fire extinguisher location questions may be simple, but executing the recommendations isn’t always straightforward. When operating a fire extinguisher, tell residents to remember the word PASS: Pull the pin. The fire triangle is a simple model for understanding the necessary ingredients for most fires — heat, fuel and an oxidizing agent. They are always marked in ‘Black’ and this provides distinction to them.