4.
a.
Increases linearly.
b.
Remains unchanged.
c.
Increases geometrically.
d.
Decreases.
5.
The difference between an x-ray and a gamma ray is the:
a.
Energy.
b.
Origin.
c.
Wavelength.
d.
6.
Varying the current (mA) of an x-ray tube will result in a variation of:
a.
X-ray quantity.
b.
X-ray quality.
c.
X-ray energy.
d.
7.
The most suitable target material presently used in x-ray tubes is:
a.
Copper.
b.
Lead.
c.
Tungsten.
d.
Platinum.
MD0180
2-18