MDFR UPDATED EXAM SETS QUESTIONS AND SOLUTIONS
GUARANTEE A+
✔✔(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
✔✔(Hurst Tools) 2-Stroke operate - ✔✔At full throttle for 60-90 seconds
✔✔(Hurst Tools) Leave a gap in spreader tips approx - ✔✔1/2"-1"
✔✔Accordion loads are mainly used for ______ - ✔✔Packaging hotel rolls and extra
sections
✔✔Flat load is mainly used for loading _______ - ✔✔2 1/2", 3" and 5" hose
✔✔"S" load is most common MDFR load used on ______ - ✔✔1 3/4" pre-connected
jumplines
✔✔Booster lines are NOT to be used as _______ - ✔✔Primary attack lines for structure
fires
✔✔During backing operations, the back up person will not ______ - ✔✔Walk
backwards while guiding the apparatus
✔✔(Backing operations) Personnel required for backing the apparatus includes
________ - ✔✔*AT LEAST TWO PERSONS*
(1) "back-up" person
(1) rear observer
Note: (1) Front observer WHEN AVAILABLE
✔✔(High-Rise Fires) Pressure reducing device (PRD) are attached _______ -
✔✔Attached to the stand pipe outlets of some buildings to prevent outlet discharge
pressures from exceeding 100 psi
✔✔During a well stretch evolution, one 50 foot hose section can you reach which floor?
- ✔✔4th or 5th
, ✔✔What is the scrub area? - ✔✔The entire area on the face of the structure that can be
effectively reached by an aerial ladder without repositioning the apparatus
✔✔(High-Rise Fires) The D/O of the first arriving suppression apparatus should spot to
_____ - ✔✔Supply the FDC with two 3" lines
✔✔Any fire above the fourth floor, RIC or rehab should stage - ✔✔2 floors below
✔✔Pressures for a high-rise fire: - ✔✔1-10 floors = 150psi
10-20 floors = 200psi
20-30 floors = 250psi
30-40 floors = 300psi
*32nd floor @ 300psi*
✔✔Standpipe system (outlets): - ✔✔Class 1 - FD use, 2 1/2" outlets
Class 2 - occupant use only, 1 1/2" outlets
Class 3 - for both, 2 1/2" outlets with 1 1/2" reducer
✔✔You supply the sprinkler FDC prior to standpipe if _____ - ✔✔There are multiple
FDC's
✔✔(High-Rise Fires) Aerial usage takes priority over ______ - ✔✔Spotting FDC
✔✔Hydrants are within ______ feet of the FDC. - ✔✔150 ft
✔✔Crews assigned to check the upper floors should equip themselves with a ______ -
✔✔CO gas meter
✔✔A potential hazard with garage fires ______ - ✔✔Burning fuel to run down ramps
and other openings
✔✔A hazard with electrical fires _____ - ✔✔Re-energizing potential from emergency
back up generators and power supplies
✔✔(Africanized honeybees) CO2 fire extinguishers are ____ - ✔✔Ineffective and may
attract more bees
✔✔(Africanized honeybees) Vibrations from sirens may ______ - ✔✔Attract and or
aggravate more bees
✔✔(Africanized honeybees) At night, the only light that should be used - ✔✔red lights
GUARANTEE A+
✔✔(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
✔✔(Hurst Tools) 2-Stroke operate - ✔✔At full throttle for 60-90 seconds
✔✔(Hurst Tools) Leave a gap in spreader tips approx - ✔✔1/2"-1"
✔✔Accordion loads are mainly used for ______ - ✔✔Packaging hotel rolls and extra
sections
✔✔Flat load is mainly used for loading _______ - ✔✔2 1/2", 3" and 5" hose
✔✔"S" load is most common MDFR load used on ______ - ✔✔1 3/4" pre-connected
jumplines
✔✔Booster lines are NOT to be used as _______ - ✔✔Primary attack lines for structure
fires
✔✔During backing operations, the back up person will not ______ - ✔✔Walk
backwards while guiding the apparatus
✔✔(Backing operations) Personnel required for backing the apparatus includes
________ - ✔✔*AT LEAST TWO PERSONS*
(1) "back-up" person
(1) rear observer
Note: (1) Front observer WHEN AVAILABLE
✔✔(High-Rise Fires) Pressure reducing device (PRD) are attached _______ -
✔✔Attached to the stand pipe outlets of some buildings to prevent outlet discharge
pressures from exceeding 100 psi
✔✔During a well stretch evolution, one 50 foot hose section can you reach which floor?
- ✔✔4th or 5th
, ✔✔What is the scrub area? - ✔✔The entire area on the face of the structure that can be
effectively reached by an aerial ladder without repositioning the apparatus
✔✔(High-Rise Fires) The D/O of the first arriving suppression apparatus should spot to
_____ - ✔✔Supply the FDC with two 3" lines
✔✔Any fire above the fourth floor, RIC or rehab should stage - ✔✔2 floors below
✔✔Pressures for a high-rise fire: - ✔✔1-10 floors = 150psi
10-20 floors = 200psi
20-30 floors = 250psi
30-40 floors = 300psi
*32nd floor @ 300psi*
✔✔Standpipe system (outlets): - ✔✔Class 1 - FD use, 2 1/2" outlets
Class 2 - occupant use only, 1 1/2" outlets
Class 3 - for both, 2 1/2" outlets with 1 1/2" reducer
✔✔You supply the sprinkler FDC prior to standpipe if _____ - ✔✔There are multiple
FDC's
✔✔(High-Rise Fires) Aerial usage takes priority over ______ - ✔✔Spotting FDC
✔✔Hydrants are within ______ feet of the FDC. - ✔✔150 ft
✔✔Crews assigned to check the upper floors should equip themselves with a ______ -
✔✔CO gas meter
✔✔A potential hazard with garage fires ______ - ✔✔Burning fuel to run down ramps
and other openings
✔✔A hazard with electrical fires _____ - ✔✔Re-energizing potential from emergency
back up generators and power supplies
✔✔(Africanized honeybees) CO2 fire extinguishers are ____ - ✔✔Ineffective and may
attract more bees
✔✔(Africanized honeybees) Vibrations from sirens may ______ - ✔✔Attract and or
aggravate more bees
✔✔(Africanized honeybees) At night, the only light that should be used - ✔✔red lights
