IFSTA Driver/Operators Handbook Flashcards
The air pressure on apparatus with air brakes should build to an efficient level within how many seconds of starting?
60 sec
(T/F) When drafting a centrifugal pump must be primed by an external priming device.
True
The _____ is the major component of the centrifugal pump because it provides the velocity to the water.
Impeller
The purpose of the ____ is to provide a circulating feed from several manes.
Grid System
A relief valve bypasses excess water from the discharge side of the pump to the _____.
Pump intake
Pumps that are commonly used as priming pumps are ____.
Rotary gear
Improper tire pressures may cause_____?
Poor handling
For water manes in industrial settings the diameter should be at least ____ in.
8in.
Which problematic conditions could be found while doing routine maintenance on a battery?
Loose tie-downs or corrosion around the battery connections.
What is the recommended way to determine the EXACT friction loss of any appliance?
Run tests with each appliance used by the department
When relay pumping, if the intake pressure drops below 20psi there is danger of ______.
Cavitation
the vacuum test requires a reading at the end of 5 minutes during which no more than ____ in. of vacuum should be lost.
10in.
Steering wheel play should be no more than ____ degrees in either direction.
10
You are responding to an incident on a limited-access highway. Your apparatus is not being used. What should be done with your apparatus?
Used as a barrier between the traffic flow and the responders on scene
If more than half the pumps rated capacity is anticipated to be used what mode should the pump be operated in?
Volume/RPM
Using the condensed Q method calculate the total pressure loss in 600ft of 4” hose flowing 1,000gpm
120psi
When the flow through a hose line increases from 100gpm to 400gpm, the friction loss will increase ___ times.
16
The minimum qualifications for DPO are set by NFPA 1002 Standard for ____?
Fire Apparatus Driver/Operator Professional Qualifications
At an intersection if a driver cannot account for all lanes of traffic the driver should ________.
Come to a complete stop and check all lanes of traffic one by one.
If an apparatus begins to skid the driver should?
Turn the apparatus steering wheel so the front wheels face the direction of the skid.
When performing a capacity test, the desired net PDP should be _____ psi.
250psi
A fire apparatus with a primary purpose of transporting 1,000 gallons of water is considered a ______.
Tanker/Tender
In a relay pumping operation which pumper should be placed nearest the water source?
The largest capacity pumper
The manufacturer’s manual will ____ the Society of Automotive Engineers (S.A.E) number for engine oil.
Recommend
A valid exception to NFPA 1500 Standard requiring that all riders of an apparatus be seat belted while the vehicle is in motion?
Loading hose
An auxiliary cooling device cools engine water when?
When the apparatus pump is engaged
Excessive temperatures during pumping operations can be controlled by using the _____.
Auxiliary cooler
The difference between dual pumping and tandem pumping is _______.
Dual pumping is intake to intake. Tandem pumping is intake to discharge
Check for voltage, electrolyte level and corrosion are all steps in inspecting a ______?
Battery
As flow decreases, pressure will ______ provided pump speed in a centrifugal pump remains constant.
Increase
Apparatus are most likely to be involved in an accident at/on?
Intersections
In the fire service each pump impeller in a housing is commonly called a ______?
Stage
The distance a vehicle travels from the time the driver begins to apply the brakes and until it comes to a complete stop is known as?
Braking distance
During a pump capacity test, a pumper should deliver _____ of its rated capacity at 250psi for 10 minutes.
50%
As standard practice it is undesirable to reduce incoming supply pressure below _______ psi.
20psi
The barrel strainer must be submerged at least ___ ft. under the water.
2ft. (on all sides)
The ______ allows the engine to be driven and discharge water at the same time.
Power Take-Off
The purpose of using a spotter is?
Assisting the driver/operator by observing the area in the blind spot and to warn the driver of any obstacles that may be present around the apparatus.
Keeping apparatus in a state of usefulness or readiness is known as?
Maintenance
The time the driver recognizes the need to brake , applies the brake and the unit comes to a complete stop is known as _____?
Total stopping distance
Unless specifically exempt, when driving fire apparatus, the fire apparatus driver/operator are generally subject to any/all _______.
Statutes, rules, regulations and ordinances
The collapse zone should be _____.
1 1/2 x the height of the building
Friction loss is USUALLY expressed in terms of psi per _____ft. of hose.
100ft.
50% pump capacity test is conducted at _____ psi for ____ mins
250psi for 10min
