MDFR LATEST 2026 CORE EXAM MANUAL QUESTIONS
AND SOLUTIONS GUARANTEE A+
✔✔When do we wax the suppression? - ✔✔(Quarterly) The first Tuesday of each
quarter.
✔✔DAILY apparatus inspection/duties includes : - ✔✔- Connect to a hydrant
- Check pump shift
- Check pump primer and run dry vacuum test
- Check for leaks
- Operate all drains and valves and check for defects
- Check gauges
- Confirm proper operation of pressure governor
✔✔WEEKLY apparatus inspection/duties includes: - ✔✔- Perform *manual pump shift
(Each FRIDAY* during daily truck inspection)
- Undercarriage of chassis (cleaned each SATURDAY)
- Operate and test master stream monitor devices
- Reverse flush the pumping system weekly (and after any drafting operation, keep
strainers clean at all times)
✔✔QUARTERLY apparatus inspection/duties include: - ✔✔- Waxing suppression (1st
Tuesday of the quarter)
- Inventory Check
✔✔The ____ is responsible for The Notice of Automobile Accident - ✔✔The D/O
✔✔What is the result of fully opening the tank fill valve while fighting fire? -
✔✔*Cavitation and loss of water to the attack lines*
✔✔Why do we make note of the upper end of the intake pressure fluctuations? -
✔✔This will be the static pressure
✔✔Why do we use the static intake pressure? - ✔✔It is utilized to calculate available
water
, ✔✔Residual intake pressures should not be taken below how many psi? - ✔✔20 psi
✔✔Tank Fill Valve should be closed to prevent what? - ✔✔Constant discharge from the
overfill pipe
✔✔When receiving water from a hydrant supply, the Tank to Pump Valve should remain
- ✔✔Open
✔✔Should a supply fail, EPG (Engine pressure governor) in pressure mode will _____ -
✔✔Automatically throttle up to maintain the desired EDP (Engine Discharge Pressure)
✔✔During extended periods of little or no water discharge you should ____ - ✔✔-
*Throttle down to idle and shift into neutral while leaving the pump engaged.*
-Open your tank fill valve
-Set up a discharge line
*NOTE: Do not take truck out of pump and shut off ignition*
✔✔The D/O Should avoid flowing a second line until their water supply has been
augmented. However, an acceptable practice is _______ - ✔✔Charging a back up line
WITHOUT flowing.
✔✔If the EPG (Engine Pressure Governor) is not working, the increase in EDP (Engine
Discharge Pressure) resulting from conducting a changeover must be manually
resolved by _____ - ✔✔Slowly opening the intake while simultaneously throttling down
the RPMs to compensate for the pressure increase
✔✔Formula for friction loss ( FL) - ✔✔C x Qsq x L
C = coefficient
Q = gpm
L = length
✔✔(Hose Testing) Each hose line will flow at _____ psi for ______ minutes. - ✔✔200
psi for five minutes
✔✔(Hose Testing) If hard suction is to be used under positive pressure, It will be
serviced tested to a water pressure of _____ psi - ✔✔165 psi
✔✔(Hurst Tools) 4-stroke are idle for how long? - ✔✔2 min
AND SOLUTIONS GUARANTEE A+
✔✔When do we wax the suppression? - ✔✔(Quarterly) The first Tuesday of each
quarter.
✔✔DAILY apparatus inspection/duties includes : - ✔✔- Connect to a hydrant
- Check pump shift
- Check pump primer and run dry vacuum test
- Check for leaks
- Operate all drains and valves and check for defects
- Check gauges
- Confirm proper operation of pressure governor
✔✔WEEKLY apparatus inspection/duties includes: - ✔✔- Perform *manual pump shift
(Each FRIDAY* during daily truck inspection)
- Undercarriage of chassis (cleaned each SATURDAY)
- Operate and test master stream monitor devices
- Reverse flush the pumping system weekly (and after any drafting operation, keep
strainers clean at all times)
✔✔QUARTERLY apparatus inspection/duties include: - ✔✔- Waxing suppression (1st
Tuesday of the quarter)
- Inventory Check
✔✔The ____ is responsible for The Notice of Automobile Accident - ✔✔The D/O
✔✔What is the result of fully opening the tank fill valve while fighting fire? -
✔✔*Cavitation and loss of water to the attack lines*
✔✔Why do we make note of the upper end of the intake pressure fluctuations? -
✔✔This will be the static pressure
✔✔Why do we use the static intake pressure? - ✔✔It is utilized to calculate available
water
, ✔✔Residual intake pressures should not be taken below how many psi? - ✔✔20 psi
✔✔Tank Fill Valve should be closed to prevent what? - ✔✔Constant discharge from the
overfill pipe
✔✔When receiving water from a hydrant supply, the Tank to Pump Valve should remain
- ✔✔Open
✔✔Should a supply fail, EPG (Engine pressure governor) in pressure mode will _____ -
✔✔Automatically throttle up to maintain the desired EDP (Engine Discharge Pressure)
✔✔During extended periods of little or no water discharge you should ____ - ✔✔-
*Throttle down to idle and shift into neutral while leaving the pump engaged.*
-Open your tank fill valve
-Set up a discharge line
*NOTE: Do not take truck out of pump and shut off ignition*
✔✔The D/O Should avoid flowing a second line until their water supply has been
augmented. However, an acceptable practice is _______ - ✔✔Charging a back up line
WITHOUT flowing.
✔✔If the EPG (Engine Pressure Governor) is not working, the increase in EDP (Engine
Discharge Pressure) resulting from conducting a changeover must be manually
resolved by _____ - ✔✔Slowly opening the intake while simultaneously throttling down
the RPMs to compensate for the pressure increase
✔✔Formula for friction loss ( FL) - ✔✔C x Qsq x L
C = coefficient
Q = gpm
L = length
✔✔(Hose Testing) Each hose line will flow at _____ psi for ______ minutes. - ✔✔200
psi for five minutes
✔✔(Hose Testing) If hard suction is to be used under positive pressure, It will be
serviced tested to a water pressure of _____ psi - ✔✔165 psi
✔✔(Hurst Tools) 4-stroke are idle for how long? - ✔✔2 min
