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NFPA 24 Test (TFM10) Exam Questions and Answers (Latest Update 2023-2024) (30 Qs)
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This standard shall apply to ______ intended to carry water for fire service mains - correct answers ✅Combined Service Mains Working plans shall be submitted for approval to the _____ before any equipment is installed or remodeled. - correct answers ✅AHJ ____ shall not be used - correct answers ✅Pressure-Regulating devices ______ shall not be installed in the piping from the fire department connection to the fire service main - correct answers ✅Control Valves _____ shall be permitted in the system downstream of the fire department connection - correct answers ✅Control Valves When more than one water supply exists, a ___________ shall be installed in each connection - correct answers ✅Check Valve All check valves shall have a ________ installed upstream and downstream of the check valve. - correct answers ✅Control Valve
A post indicator valve installed not less than____ from the building - correct answers ✅40 ft Where post indicator valves are used, they shall be set so that the top of each post is _______ above final grade - correct answers ✅32-40 inches Supervision of underground gate valves with roadway boxes shall ____________ - correct answers ✅not be required The connection from the hydrant to the main shall ___________ - correct answers ✅not be less than 6 inches Hydrants shall be located _________ from the buildings to be protected - correct answers ✅not less than 40 ft Hydrants shall be installed on __________ - correct answers ✅flat stones, concrete slabs, or other approved material
Private fire service mains installed under driveways or roadways shall be buried at a ______________ - correct answers ✅minimum depth of 36 inches Where private fire mains extend more than 10 ft into the building, they shall be ___________ - correct answers ✅run in a covered trench Thrust blocks shall be concrete of a mix not leaner than ______________ - correct answers ✅1 part cement, 2 1/2 parts sand, and 5 parts stone Rods shall be _____________ - correct answers ✅not less than 5/8 in diameter After installation, rods, nuts, bolts, washers, clamps, and other restraining devices _____________________ - correct answers ✅shall be cleaned and thoroughly coated with a bituminous or other acceptable corrosion- retarding material Pipe shall be _____________________ - correct answers ✅restrained at the bottom of a hill and at any lateral or vertical turns
Bell ends shall be __________ - correct answers ✅facing uphill The flushing operation shall continue until water flow is verified to be ___________ - correct answers ✅clear of debris The installing contractor shall be responsible for _______________________