a. True.
b. False. This may be achieved by choosing a different filament length (there are usually two). Some anode discs may also have bevels at different inclinations allowing the choice of a different anode angle.
c. True. This may be achieved automatically by anatomically programmed radiography (APR), which will set the kVp/mA/exposure time depending on the particular projection.
d. True. AEC uses a radiation detector (usually an ionization chamber) placed in close proximity to the image plate, terminating exposure when a sufficient quantity of radiation has reached the film. This is especially important in computed/digital radiography where the detector has a large latitude, and the choice of excessive parameters does not result in obvious overexposure.
e. True. They are usually adjusted as a single parameter (mAs).
