MWS EOC Exam Questions and Correct Answers Latest Update 2025-2026
How many inspectable areas does a MWS apparatus have? - Answers 8 areas
What is considered a once-over of the apparatus? - Answers The approach
What is another term for fuel tanks? - Answers Saddle tanks
How many degrees should a steering wheel move at max when truck is off? - Answers 10 degrees
What NFPA is the standard for an automotive fire apparatus? - Answers NFPA 1901
Standard for the Inspection, Maintenance, Testing, and Retirement of In-Service Automotive Fire
Apparatus - Answers NFPA 1911
Air brakes must become operational within how many seconds of engine start up? - Answers 60 seconds
The brakes must hold the apparatus at what percent grade? - Answers 20%
What is an additive in diesel engines to produce cleaner exhaust fumes? - Answers DEF
Pump, intake strainers, pump gearbox, packing glands, and rapid dump system are what type of
inspection? - Answers Weekly
In a cold-weather environment, you must purge hose-lines to prevent damage from? - Answers Freezing
Pre-service tests are conducted before they are placed into service by? - Answers The manufacturer
Fire pump service tests are conducted how often? - Answers Annually
Hydrostatic testing is ensuring what? - Answers The piping and pump can withstand pressures of the
fireground
Hydrostatic testing requires a minimum of what? - Answers Minimum of 500 psi for 10 minutes
Why is it preferred that you draft from a static water source? - Answers It is a true test of the pump's
ability
What is the ideal water depth when drafting from the source? - Answers 4 feet
How far below should the strainer be from the surface of water? - Answers 2 feet
How many feet is ideal between the centerline of the pump and the water's surface - Answers 10 feet
How many feet of hard-suction is ideal? - Answers 20 feet
During testing, make sure the atmospheric air temperature is between __ and __? - Answers 0 and 100 F
The water temperature is between __ and __? - Answers 35 and 90 F
, The barometric pressure has at least __ of __ - Answers 22 in of Mercury (Hg)
For every __ ft, __ of mercury is added - Answers 1,000 ft, 1 inch
The priming device should be able to create a vacuum within how many seconds? (Rated up to 1,500
gpm) - Answers 30 seconds
If the water pump is rated anything above 1,500 gpm, it should take how long to prime the pump? -
Answers 45 seconds
The pumping test should be able to hold __% of its rated capacity for 20 minutes - Answers 100%
What is a gauge test? - Answers It is simply an evaluation of all the pump gauges and ensures each one is
performing correctly
The reading on the flowmeter gauge should not differ more than __% of actual readings - Answers 10%
The drive belt should have no more than __ in to __ in give when inspecting - Answers 1/2 in to 3/4 in
What is included in periodic MWS apparatus records? - Answers Safety inspections and power auxiliary
fuel levels
If you allow the engine to idle for extended periods of time, what will it cause? - Answers Engine wear
NFPA requires that fire pumps be rated to meet their full capacity at __ ft of lift using __ ft of hose -
Answers 10 ft, 20 ft
Water pressure is typically referred to as __ - Answers Pounds per square inch (PSI)
What is the definition for head pressure? - Answers A measurement based on the force created by the
height of a water supply above a discharge point
Define static pressure - Answers The available pressure at a discharge point without flowing
Definition of residual pressure - Answers The water pressure in a distribution system that is still available
when a hydrant is flowing
Atmospheric pressure definition - Answers The pressure that that the atmosphere exerts on earth
If water flow rate doubles, friction loss is how many times greater? - Answers 4
What formula is used when calculating friction loss? - Answers FL = CQ^2L
What diameter of hose is considered Medium Diameter Hose (MDH)? - Answers 2 1/2 - 3 in
Large Diameter Hoses are generally between the sizes of? - Answers 4 in, 6 in
Hard-suction hoses are typically between __ in - __ in and are non-collapsable - Answers 4 in, 6 in
How many inspectable areas does a MWS apparatus have? - Answers 8 areas
What is considered a once-over of the apparatus? - Answers The approach
What is another term for fuel tanks? - Answers Saddle tanks
How many degrees should a steering wheel move at max when truck is off? - Answers 10 degrees
What NFPA is the standard for an automotive fire apparatus? - Answers NFPA 1901
Standard for the Inspection, Maintenance, Testing, and Retirement of In-Service Automotive Fire
Apparatus - Answers NFPA 1911
Air brakes must become operational within how many seconds of engine start up? - Answers 60 seconds
The brakes must hold the apparatus at what percent grade? - Answers 20%
What is an additive in diesel engines to produce cleaner exhaust fumes? - Answers DEF
Pump, intake strainers, pump gearbox, packing glands, and rapid dump system are what type of
inspection? - Answers Weekly
In a cold-weather environment, you must purge hose-lines to prevent damage from? - Answers Freezing
Pre-service tests are conducted before they are placed into service by? - Answers The manufacturer
Fire pump service tests are conducted how often? - Answers Annually
Hydrostatic testing is ensuring what? - Answers The piping and pump can withstand pressures of the
fireground
Hydrostatic testing requires a minimum of what? - Answers Minimum of 500 psi for 10 minutes
Why is it preferred that you draft from a static water source? - Answers It is a true test of the pump's
ability
What is the ideal water depth when drafting from the source? - Answers 4 feet
How far below should the strainer be from the surface of water? - Answers 2 feet
How many feet is ideal between the centerline of the pump and the water's surface - Answers 10 feet
How many feet of hard-suction is ideal? - Answers 20 feet
During testing, make sure the atmospheric air temperature is between __ and __? - Answers 0 and 100 F
The water temperature is between __ and __? - Answers 35 and 90 F
, The barometric pressure has at least __ of __ - Answers 22 in of Mercury (Hg)
For every __ ft, __ of mercury is added - Answers 1,000 ft, 1 inch
The priming device should be able to create a vacuum within how many seconds? (Rated up to 1,500
gpm) - Answers 30 seconds
If the water pump is rated anything above 1,500 gpm, it should take how long to prime the pump? -
Answers 45 seconds
The pumping test should be able to hold __% of its rated capacity for 20 minutes - Answers 100%
What is a gauge test? - Answers It is simply an evaluation of all the pump gauges and ensures each one is
performing correctly
The reading on the flowmeter gauge should not differ more than __% of actual readings - Answers 10%
The drive belt should have no more than __ in to __ in give when inspecting - Answers 1/2 in to 3/4 in
What is included in periodic MWS apparatus records? - Answers Safety inspections and power auxiliary
fuel levels
If you allow the engine to idle for extended periods of time, what will it cause? - Answers Engine wear
NFPA requires that fire pumps be rated to meet their full capacity at __ ft of lift using __ ft of hose -
Answers 10 ft, 20 ft
Water pressure is typically referred to as __ - Answers Pounds per square inch (PSI)
What is the definition for head pressure? - Answers A measurement based on the force created by the
height of a water supply above a discharge point
Define static pressure - Answers The available pressure at a discharge point without flowing
Definition of residual pressure - Answers The water pressure in a distribution system that is still available
when a hydrant is flowing
Atmospheric pressure definition - Answers The pressure that that the atmosphere exerts on earth
If water flow rate doubles, friction loss is how many times greater? - Answers 4
What formula is used when calculating friction loss? - Answers FL = CQ^2L
What diameter of hose is considered Medium Diameter Hose (MDH)? - Answers 2 1/2 - 3 in
Large Diameter Hoses are generally between the sizes of? - Answers 4 in, 6 in
Hard-suction hoses are typically between __ in - __ in and are non-collapsable - Answers 4 in, 6 in
