Flashcards in fires 8 Deck (18):
during periods of light to moderate traffic or roads with posted speeds of 50mph. what is the expected speed?
70mph or more(4.2 c)
on dry pavement with good brakes a fully loaded tractor trailer combination will need over ___A___ feet to stop at ____B____ mph after the driver perceives the danger.
A passenger car traveling at ____C____ mph will need over ____D___ mph to stop on dry pavement.
A. 500 feet
B. 50 mph(4.2 c)
wet pavement and other weather factors can ____ the stopping distance.(4.2 c)
who will be assigned to all express highway incidents?
One engine and one ladder from each direction and a battalion chief (5.1)
at least one vehicle, other than the pumper being used to extinguish the fire shall be used for what?
to divert or block oncoming traffic for the duration of the operation or until PD arrives on the scene and assumes traffic control(5.1)
where should apparatus be placed for a fire in a flammable liquids tank truck or other hazardous material carrier located on a grade?
uphill of the the involved vehicles(6.1)
how far back should the blocking apparatus be placed behind the first operating unit?
at least 50 feet behind(6.5)
when shall flares be used?
at night or periods of reduced visibility(8.1)
how many cones and/or flares shall be used to build a lane closure or safety zone?
at least 4 to 6 cones and/or flares(8.1)
How far should the furthest flare be placed when placing flares at an accident scene for the following speeds:
mph minimum distance
20 100 feet
(take the MPH and multiply by first digit of the MPH then add 60. ex. 40mph x 4=160 +60=220 feet)
how long do flares burn for?
approximately 30 minutes
when disconnecting battery which terminal is removed first?
negative terminal first to eliminate sparks(11.2)
how should you approach a hybrid vehicle?
do not approach from front or rear until vehicle has been disabled. Hybrids may appear shut down but may actually be in "ready mode"(11.6)
when should the high voltage cables be cut on the hybrids?
what color are the high voltage cables?
many hybrid vehicles use a keyless start system. Make sure the ignition is off and the key FOB is at least _____ feet away from the vehicle.(11.6)
In what situations shall you chock hybrids?