FSVO IL STATE EXAM|2023/24 UPDATE|GRADED A+

Stopping distance The distance it takes for you to recognize the hazard, process the need to stop, apply the brakes, and come to a complete stop. Reaction distance The distance the fire apparatus ravels after you recognize the hazard, remove your foot from the accelerator, and apply the brakes. Braking distance The distance the fire apparatus travels from the time that the brakes are activated until the fire apparatus makes a complete stop. Ungaurded railroad crossing Come to a complete stop, turn off sirens and roll down windows; operate apparatus on idle, and listen for the sound of an oncoming train Intersections with railroad crossbars Never proceed between the crossbars in an attempt to continue the response Fuel guage Fuel tanks should never drop below the halfway level Voltmeter Measures the voltage across the battery terminals and gives an indication of the electrical condition of the battery Air brake test Turn apparatus on, allow air compressor to build up to 110 PSI, shut off engine but leave battery in on position, step on and off brake pedal. An audible alarm should signal before pressure drops to less than 60 PSI. Confined space turnaround maneuver Establish a 50x12 ft lane; driver enters area and turns the apparatus 180 degrees and leaves area Vaccuum test before Before: remove all discharge caps and drain booster tank; chock wheels Vacuum test during During: drain water from fire pump and booster tank; close all drains, intake valves, cooler lines, and any other sources of vacuum leaks to isolate fire pump; place caps on all suction or external intake fittings and remove caps from discharge fittings. Vacuum test during cont (1) Turn battery on (not necessary to start engine); fully open primer control handle and hold in that position Vacuum test during cont (2) Continue to hold hand in fully engaged position until max vacuum is achieved (15-20 seconds); You should see a vacuum reading of approx 22in HG on supply master gauge. Return handle to fully closed position. Vacuum test after Record reading and wait 5 minutes and record again; reading should not drop below more than 10in Hg in 5 minutes. If it does follow SOPs and have vacuum leak repaired Air brakes: Air pressure build-up from 85 psi to 100 psi should take 45 seconds or less. While driving, observe the air pressure gauge during build-up to ensure proper air system operation. Dual tires should always be inflated to the same pressure and have the same amount of tread depth. When dual tires have more than a _____ psi pressure difference tread depth, ________ of the tires carries too much of the load and becomes overloaded. -10 PSI pressure distance -One Function of maintenance records: To find any abnormalities so corrective action can be taken Overthrottling can result in: Lugging; Lugging occurs when the throttle is applied while the transmission is too high a gear for a given set of conditions When over throttling a Diesel engine, more fuel is being injected than can be burned which causes: Excessive amount of carbon particles issuing from the exhaust (black smoke) oil dilution, and additional fuel consumption Before stopping the apparatus, what are things the driver should consider? Weight of the apparatus Condition of the brakes Tires Road surface Factors that influence a drivers ability to stop the vehicle: Condition and slope of the driving surface Speed being traveled Weight of the vehicle Type and condition of the vehicles braking system The most common cause of skids involve driver error: Too fast for conditions Failure to appreciate the proper weight shifts for heavy apparatus Failing to anticipate obstacles Improper use of auxiliary braking devices Improper maintenance of tire tread depth and tire pressure