RAD 138 Final Review

The radiologic unit that addresses the different biological effects of different types of ionizing radiation is the:

• Gray

• Becquerel

• Sievert

• Coulomb per kilogram

The number of waves that pass by a given point per second is the:

• Frequency

• Velocity

• Amplitude

• Wavelength

The autotransformer:

• Is not found in an x-ray machine

• Does not use a magnetic core

• Uses two coils of wire

• Uses self-induction

The less the ripple:

• The greater the amount of radiation needed for a specific exposure

• The less consistent the energy of the x-rays produced

• The more consistent the energy of x-rays produced

• None of these are correct

The portion of the induction motor that is outside the tube enclosure is the:

• Stator

• Disc

• Bearings

• Rotor

Based on the anode-heel effect, what area/end of the x-ray tube allows for the highest intensity of x-rays?

• Anode end

• Anode and cathode allow for same intensity

• Cathode end

• None of these are correct

Which of the following factors affect beam quantity?

1. 1. kVp

2. 2. Distance

3. 3. Filtration

• 1 only

• 2 only

• 3 only

• 1, 2 & 3

The x-ray beam that leaves the patient to expose the IR is called the:

• Patient beam

• Secondary beam

• Remnant beam

• Primary beam

The fog seen on the radiographic image is the result of:

• Coherent scattering

• Compton scattering

• Photoelectric interactions

• Classical scattering

At higher kilovoltages within the diagnostic range, photoelectric interactions:

• Increase

• Decrease

• Remain the same