The location in space where all the lines extended from the lead strips meet is the:

Which beam position would produce superimposition of parts A, B and C?

If an initial exposure is made using 800 mA, 0.02 sec, 16 mAs, 70 kVp, 58” SID, 4 “ OID, 5:1 grid ratio, 0.2 mm focal spot and 3.0 mm of filtration, with a 14 x 17 in field size, and the technologist changes the exposure time to 0.04 sec for a second exposure without changing any other factors, what differences would you expect to see in the second exposure?1) Increased IR exposure2) Decreased IR exposure3) Increased contrast4) Decreased contrast5) Increased spatial resolution6) Decreased spatial resolution7) Increased distortion8) Decreased distortion

Which combination of variables will result in a radiograph with the lowest receptor exposure??

When an air-gap technique is used, the amount of scatter reaching the image receptor is decreased because:

All filtration can be expressed in terms of the thickness of

Penumbra is ____ when the field size is  ____ .

Elongation occurs when:

The thickness of absorbing material necessary to reduce the x-ray intensity to half of the original value is called:

If the patient dose is 1 mGy at a 72 inch SID, what is the patient dose at a 40 inch SID using the same technical factors?