Basic Firefighter Written Exam – Questions & Solutions (Rated A+)

Basic Firefighter Written Exam – Questions & Solutions (Rated A+) Basic Firefighter Written Exam – Questions & Solutions (Rated A+) hydrants are installed in areas where prolonged periods of subfreezing weather are common. - ANSWER - dry barrel The process of drawing water from a static source to supply a pumper is known as . - ANSWER - drafting Wet-barrel hydrants are always filled with . - ANSWER - water In the Matanuska-Susitna Borough, the type of fire apparatus that carries fol-da-tanks is . - ANSWER - tenders What equipment is needed for drafting: - ANSWER - 1. hard suction 2. barrel strainer 3. low level strainer 4. float-a-dock 5. rubber mallet All collections must be air tight to obtain a when drafting. - ANSWER - vacuum/suction The main valve is located ground on a dry-barrel hydrant. - ANSWER - under List 3 alternative water supplies? - ANSWER - 1. lakes 2. rivers 3. underground tanks Where would you find a dry hydrant? - ANSWER - lake sides Water hammer is most likely to be caused by and closing the quickly. - ANSWER - opening nozzle What are 3 disadvantages of water? - ANSWER - 1. heaviness 2. creates ice 3. good conductor of electricity The is a wild-land nozzle that has a twin-tip combination. - ANSWER - forestry/forester A disadvantage of the stream is the inability to have an adjustable pattern. - ANSWER - solid A fine spray composed of tiny water droplets is a stream. - ANSWER - fog What does CAFS stand for? - ANSWER - compressed air foam system What are 3 advantages of CAFS? - ANSWER - 1. uses less water 2. lowers surface tension 3. creates more surface area The part of total pressure that is lost while forcing water through hose, appliances and adapters is called .