IFSTA Pumping 3rd Chapter 16 Test fully solved 2023/2024

IFSTA Pumping 3rd Chapter 16 TestEngineering design has proven that aerial ladder trusses lend more strength if assembled members form: (543) A. squares. B. triangles. C. octagons. D. hexagons. - correct answer B. triangles. Which NFPA® standard establishes the number of sections and minimum reach required of an aerial apparatus? (543-544) A. NFPA® 1901 B. NFPA® 1911 C. NFPA® 1962 D. NFPA® 1989 - correct answer A. NFPA® 1901 Which is one of the three main portions of an aerial ladder to which firefighters and driver/operators commonly refer? (544) A. Rungs B. Foot pad C. Pail shelf D. Holster top - correct answer A. Rungs The function of the hydraulic system is to provide power for operating the various hydraulic components needed to: (546) A. operate the electrical system and turn on the engine. B. stabilize the apparatus and operate the aerial device. C. power ventilation equipment and raise ground ladders. D. operate the engine and activate the emergency brakes. - correct answer B. stabilize the apparatus and operate the aerial device. Which hydraulic system component transforms power into mechanical force? (546) A. Actuator B. Rotary gear C. Hydraulic fluid D. Hydraulic pump - correct answer A. Actuator Which type of valve limits the pressure built up in the hydraulic system, thus preventing damage due to overpressurization? (549) A. Stack valve B. Relief valve C. Check valve D. Selector valve - correct answer B. Relief valve Which is a three-way valve that directs fluid to either the stabilizer control valves or the aerial device control valves? (549) A. Stack valve B. Relief valve C. Check valve D. Selector valve - correct answer D. Selector valve Which component converts energy into linear mechanical force or motion when pressurized hydraulic oil is directed into a chamber created by fitting a piston into a cylindrical barrel? (549) A. Hydraulic pump B. Hydraulic motors C. Hydraulic cylinders D. Hydraulic reservoir - correct answer C. Hydraulic cylinders Which type of cylinders has the function of elevating the aerial device from its stowed position? (550) A. Locking cylinders