QUESTIONS WITH SOLUTIONS GRADED A+
◉ Mobile water supply operations, such as water shuttles or relay
pumping, must be performed: Answer: in rural areas without public
water distribution systems.
◉ A spanner wrench is designed to: Answer: tighten or loosen
coupling connections.
◉ Which type of hydrant is used in climates with prolonged periods
of below-freezing temperatures? Answer: Dry-barrel hydrant
◉ When advancing a hoseline into a structure, firefighters should:
Answer: first open the nozzle fully and check for adequate water
flow.
◉ A nozzle operator can control the _____ by cradling the hoseline
under one arm and evenly distributing his or her weight on both feet
while operating the nozzle. Answer: nozzle reaction
◉ Which hose deployment tool is used to protect the hose when it is
dragged over sharp corners, such as a windowsill? Answer: Hose
roller
,◉ Which type of valve device is used to divide one hoseline into two
or more hoselines? Answer: Wye appliance
◉ Friction loss causes: Answer: reduced water flow and pressure at
the nozzle.
◉ In which operation would the pumping apparatus start at the fire
scene and lay a supply line back to the water source? Answer:
Reverse lay
◉ Which type of nozzle has a straight, smooth tip and produces a
solid stream of water? Answer: Smooth bore nozzle
◉ In order to prevent obstructions when advancing a charged
hoseline down a stairway, excess hose should be: Answer: stretched
outside the stairway.
◉ Which type of hose fitting is used to attach a smaller hose to the
end of a larger hose? Answer: Reducer
◉ Master stream devices are usually deployed when: Answer: the
fire is too large to be controlled by handlines.
,◉ Water extinguishes fire by: Answer: absorbing heat and cooling
the burning material.
◉ A _____ valve is used to control the flow of water from a fire
hydrant. Answer: gate
◉ Which is a characteristic of fog streams? Answer: Can be adjusted
to suit the situation
◉ Standard fire hydrants have at least one large steamer connection
and: Answer: two hose outlet nozzles for 2½-inch (65 mm)
couplings.
◉ Which piece of equipment provides a more secure means to
handle charged hoselines when applying water? Answer: Hose strap
◉ A hydrant wrench is primarily used to: Answer: remove discharge
caps from the hydrant outlets.
◉ Which appliance has one female inlet and multiple male outlets to
divide one supply hoseline into two or more hoselines? Answer: Wye
appliance
, ◉ Which piece of equipment is designed to prevent damage to hose
when vehicles must drive over it? Answer: Hose bridge
◉ What should the fire department do when a hydrant is taken out
of service? Answer: Place "out-of-service" tags on the hydrant
◉ Which hose lay allows the pumper to remain at the incident scene
so that hose, equipment, and tools are readily available if needed?
Answer: Forward lay
◉ As part of general nozzle inspection and maintenance, firefighters
should: Answer: look for external damage to the nozzle body and tip.
◉ Which type of hose fitting would be used to connect a smaller
hoseline to a larger supply line? Answer: Reducer
◉ Which piece of equipment is used to quickly drain water from
LDH hose before it is stored? Answer: LDH drainage hose roller
◉ When compared with a narrow-angle fog pattern, a wide-angle
fog pattern: Answer: has a shorter reach than a narrow-angle fog
pattern.