Edition with complete solution
What is considered to be low residual pressure?
Below 20 psi.
What can happen if you run with the tank fill valve opened.
The tank fill line may be pump with a pipe large enough to cause cavitation. Some driver
operators open the valve the distance of their thumb to the pump panel with their hand
on the valve control.
What is a tactic that can be used if there is a dramatic failure of a radiator hose or
other cooling element while the pumper is supplying hoselins for interior
firefighter?
Water stream can be directed at the engine to maintain some form of cooling,
Mobile water Supply Apparatus are equipped with a tank capacity of at least
_______________.
1,000 Gallons
Define a quint
Fire Pump, Water Tank, Hose, Aerial Device, and Ground Ladders
Define Apparatus "Maintenance"
Keeping apparatus in a state of usefulness or readiness.
Define Apparatus "Repair"
Restore that which has become inoperable
How long should you wait on a new apparatus to apply waxing product to
engine?
6 months
Are you able to mix radial and bias-ply tires?
No.
According to NFPA 1911 when should tires be replaced?
Every 7 years
Steering wheel play should be no more than
10% in either direction
At what PSI does air horns and non-essential devices stop operating?
Drops below 80 PSI
Does ABS help provide a faster stop?
No. but i it helps provide a more controlled stop. Prevents trucks from going into a slide,
jack knife, or spin during heavy braking.
What type of gas does battery give off?
Hydrogen Gas
T/F: In most jurisdictions, fire apparatus are not exempt from laws that require a
vehicle to stop for a school bus when its flashing red lights indicate that it is
loading or unloading students.
True
Where is the most common place for a collision?
Intersection
Seven basic causes of fire apparatus collisions
, 1. Improper Backing
2. Reckless Driving
3. Excessive Speed
4. Lack of driving skill and experience
5. Overloading and misuse
6. Mechanical Failure
7. Driver/Operator Personal Readiness
What is Brake Fade?
The loss of braking function which occurs due to excessive use of the brakes
When should the operator use the Regenation Inhibit Switch?
Only in limited circumstances if the apparatus is parked on dry grass or over other
combustible material where there is a risk that high exhaust temperatures may start a
fire.
Can parked (manual) regeneration be initiated during pumping operations?
no.
What happens if driver ignores empty DEF tank?
The apparatus may be limited in speed to 5 mph and will need service from dealer.
A hot engine should cool to the normal operating temperature. Usually an idling
time of _________ minutes is sufficient.
3-5 minutes
Define Angel of Approach:
Angle formed by level ground and a line from the point where the front tires touch the
ground to the lowest projection at the front fo the apparatus.
Define Angle of Departure:
Angle formed by level ground and a line from the point where the rear tires touch the
ground to the lowest projection at the rear of the apapratus
Breakover Angle
Angle formed by level ground and a line from the point where the rear tires touch the
ground to the bottom of the frame at the wheelbase midpoint.
It may take ___________ times greater distance for a vehicle to come to a
complete stop on snow and ice than it does on dry pavement.
3-15 times
Guidelines to help avoid potential collisions:
1. Aim high in steering
2. Get the big picture
3. Keep your eyes moving
4. Leave yourself an "out"
5. Maintain enough distance from the vehicle ahead to pull out of traffic safely if the
need arises
6. Make sure that others can see and hear you.
At speeds above __________ an emergency vehicle may outrun the effective
range of its audible warning device.
50 mph
By increasing your speed of an apparatus by 20 mph can decrease the audible
distance by ______.
250 feet.