Chapter 2 Flashcards
Apparatus Inspection & Maintenance
What is the definition of Maintenance?
Keeping apparatus in a state of usefulness or readiness
What is the definition of repair?
Means to restore that which has become inoperable
Two types of inspections are actually conducted during a walk around inspection what are they?
Operational readiness inspection and pre-trip road worthiness inspection
What is a CDL?
A driver’s license that’s issued to individuals who demonstrate competence inspecting and driving vehicles with a gross vehicle rating of 26, 001 pounds or more
What is a functional check of the apparatus?
An inspection where a certain system or component is operated to ensure that it is functioning properly
What is a load management system?
Electrical monitoring system that will shed electrical load in a predetermined order if the chassis voltage begins to drop below a predetermined level
What is a load sequencer?
A device in an electrical system that turns lights on at specified intervals so that the startup load for all of the devices does not occur at the same time
What is load monitor?
A device that watches an electrical system for added loads that may threaten to overload the system
What is load shedding?
When an overload condition occurs the load monitor will shut down less important electrical equipment to prevent the overload
What is free play or free travel?
Amount of travel the clutch has before it begins to disengage the engine from transmission
What is a throw out bearing?
The component used to push on the internal clutch fingers connected to the clutch pedal when activated it disengages the clutch from the engine
The steering wheel play should be no more than approximately ______ degrees in either direction?
10
How many inches in either direction on a 20 inch diameter steering wheel should the play be?
About 2 inches and either direction
NFPA 1901 and 1911 says a side-to-side variance in weight should not exceed _____ percent?
7%
What are air actuated braking systems?
A braking system that uses compressed air to hold off a spring brake (parking brake) and applies air pressure to a service brake for vehicle stopping
Air brakes are equipped with an air pressure protection valve that prevents air horns or other nonessential devices from being operated when the pressure in the air reservoir drops below ____ psi?
80 psi
When pumping the air brakes the warning light and buzzer should activate before?
60 psi
With pumping the brake pedal the button should pop out between _____ and _____ psi?
20 and 40 psi
The air pressure should build to ____ - ____ in 45 sec at full engine RPM.
85-100
When checking the tires check for bulges greater than____________ of an inch?
3/8
What NFPA standard requires driver operators be skilled in the performance of certain maintenance tasks?
1002
