AADO Certification Test - Questions & Answers What are the different types of PTO activation switches? may be pneumatic, electric, hydraulic or a
... [Show More] combination of them What pressures do pneumatic systems require? 50 to 140 psi What is a Hot Shift PTO system? systems that are able to engage when the main transmission is in neutral What are the general principles of Stabilizer controls? operating these controls will automatically regulate engine idle speed. a fast-idle toggle switch or manual throttle control may also regulate the engine idle speed. What are Box stabilizers? two-part devices consisting of an extension arm that extends directly out from the vehicle and a lifting jack that extends from the end of the extension arm What is a Fulcrum Type Stabilizer? extends the device at an angle down and away from the chassis; can only be fully deployed What should be in place if possible when short Jacking? safety officer What ways can truck be uneven? laterally or longitudinally Which unevenness is easier to correct? lateral unevenness Up to how many degrees can lateral unevenness be corrected? 5 Operating on what type of grade is more challenging? Longitudinal What type of stress is created when apparatus is not level? lateral and torsional How should articulating aerials be operated? off the rear of the vehicle What aerial restrictions occur when on grades? most have restricted loads when operating on grades; some as much as one-half the normal load and if in the red zone, do not operate the aerial What are holding valves and what are they used for? they prevent the movement of fluid within the stabilization valves How could driver check if apparatus is level? apparatus may be equipped with an indicator light or a site gauge level How is transfer of hydraulic power completed? may be automatically completed or may require the movement of a switch or control lever When should driver remove safety pins? when the aerial device is properly bedded When is the manual stabilizer in service? when the stabilizer shoe rests firmly on the pad What motions are involved in raising an aerial ladder? elevating rotating extending and lowering What order should the aerial be raised? elevated, rotated then extended What is the definition of Feathering? slow smooth and controlled [Show Less]