ALL FIREFIGHTER 1 PRACTICE EXAM FULL
QUESTIONS AND CORRECT ANSWERS 2026
GRADED A+
◉ The pressure in a true gravity system is adequate only when the
primary water source is located more than --------- feet higher than the
highest point in the water distribution system. Answer: 100
◉ A gallon of water is commonly measured in: Answer: 8.33 pounds
◉ Water pressure is commonly measured in: Answer: pounds per square
inch (psi)
◉ What is created as water flows through a hose and rubs against the
inside of the hose, losing pressure along the way? Answer: Friction loss
◉ The amount of pressure in a hose or water main while no water is
flowing is a definition for: Answer: static pressure
◉ The type of hydrants that have water inside them at the street level
and are usually installed in climates where freezing temperatures are not
a concern is called: Answer: wet barrel
, ◉ The type of hydrants that hold the water in the pipe serving the
hydrant safely below the frost line by a valve is controlled by an
operating nut at the top of the hydrant is: Answer: dry barrel
◉ What problems could occur in the event of a water hammer? Answer:
It can cause damage to the hoseline or pumper
◉ The best way to prevent water hammer is to: Answer: open and close
nozzles/valves slowly
◉ With respect to fuels, ordinary combustible materials include:
Answer: wood and paper
◉ All portable extinguishers are classified according to their: Answer:
intended use
◉ A dry chemical extinguisher rated 60-B is capable of extinguishing a -
-------- flammable liquid pan fire. Answer: 60 square feet
◉ What advantage does CO2 have over a dry chemical extinguisher?
Answer: CO2 does not leave a residue or corrode electrical contacts
QUESTIONS AND CORRECT ANSWERS 2026
GRADED A+
◉ The pressure in a true gravity system is adequate only when the
primary water source is located more than --------- feet higher than the
highest point in the water distribution system. Answer: 100
◉ A gallon of water is commonly measured in: Answer: 8.33 pounds
◉ Water pressure is commonly measured in: Answer: pounds per square
inch (psi)
◉ What is created as water flows through a hose and rubs against the
inside of the hose, losing pressure along the way? Answer: Friction loss
◉ The amount of pressure in a hose or water main while no water is
flowing is a definition for: Answer: static pressure
◉ The type of hydrants that have water inside them at the street level
and are usually installed in climates where freezing temperatures are not
a concern is called: Answer: wet barrel
, ◉ The type of hydrants that hold the water in the pipe serving the
hydrant safely below the frost line by a valve is controlled by an
operating nut at the top of the hydrant is: Answer: dry barrel
◉ What problems could occur in the event of a water hammer? Answer:
It can cause damage to the hoseline or pumper
◉ The best way to prevent water hammer is to: Answer: open and close
nozzles/valves slowly
◉ With respect to fuels, ordinary combustible materials include:
Answer: wood and paper
◉ All portable extinguishers are classified according to their: Answer:
intended use
◉ A dry chemical extinguisher rated 60-B is capable of extinguishing a -
-------- flammable liquid pan fire. Answer: 60 square feet
◉ What advantage does CO2 have over a dry chemical extinguisher?
Answer: CO2 does not leave a residue or corrode electrical contacts
