“RADR 2209 FINAL EXAM 2025 “ NEWEST UPDATED EXAM 2025 – 2026 SOLVED QUESTIONS & ANSWERS VERIFIED 100% GRADED A+ (LATEST VERSION) WELL REVISED AND HIGHLY RECOMMENDALE| ALREADY PASSED!!

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“RADR 2209 FINAL EXAM 2025 “ NEWEST UPDATED EXAM 2025 – 2026 SOLVED
QUESTIONS & ANSWERS VERIFIED 100% GRADED A+ (LATEST VERSION) WELL
REVISED AND HIGHLY RECOMMENDALE| ALREADY PASSED!!




RADR 2209 Final Exam




The process of burning off of electrons from the filament wire is called:
A. Space charge effect
B. Potential difference
C. Electromagnetism
D. Thermionic emission
D
What unit of measure quantifies the occupational exposure?
A. Rad
B. Sievert
C. Roentgen
D. Curie
B
Which of the following reflects what a RAD measures?
A. The biological effects on humans
B. Occupational exposure
C. Quantity of radioactivity
D. Radiation intensity
A
Which bonding is based on two atoms sharing electrons?
A. Ionic bonding
B. Covalent bonding
C. Sharing bonding
D. Dispersion bonding

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B
Which electromagnetic radiation has the ability to ionize matter?
A. Microwaves
B. Gamma rays
C. Infrared light
D. All of the above
B
Which of the following is a part of the primary circuit?
A. Step down transformer
B. Rheostat
C. Exposure timer
D. Rectifier
C
The actual focal spot is the:
A. Target area as seen from the perspective of the patient
B. Area the radiographer must focus their attention to during an exam
C. Target area that is bombarded by electrons
D. Area of the patient's body that must be examined
C
Which of the following is not found in the x-ray tube?
A. Rectifier
B. Cathode
C. Rotor
D. Anode
A
Which of the following is true of stationary anodes?
A. Usually found in dental equipment
B. Electrons are continually hitting a new target area
C. Embedded in Molybdenum
D. All of the above
A
Beam quantity is to mAs as beam quality is to:
A. kVp
B. mA

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C. Seconds
D. Intensity
A
Characteristic x-ray energies are ________ the value of the K-shell binding
energies of the target.
A. Not related to
B. Dependent upon
C. Slowed down by
D. Stopped by
B
Which interaction occurs outside the diagnostic x-ray range?
A. Photoelectric
B. Photodisintegration
C. Compton
D. Classical
B
Bone densitometry does NOT evaluate:
A. Osteoporosis
B. Bone density
C. Mineral content
D. Fractures
D
The purpose of the tube housing is to: A. Electrically insulate the tube B. Serve
as a thermal cushion C. Shield the room from radiation D. All of the above
D
What is used to turn the rotating anode? A. Generator B. Battery C. Electrical
motor D. Induction motor
D
Bremsstrahlung is a German term meaning: A. Braking radiation B. Discrete
radiation C. Target radiation D. All of the above
A
Which of the following will affect beam quantity?
A. mAs
B. kVp

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C. Filtration
D. All of the above
D
Which of the following are characteristics of x-rays?
A. Invisible
b. Is affected by magnets
c. Can be focused by a lens
d. Is classified as thermal energy
e. All of the above
E
To double the beam quantity
* a) halve the mAs
* b) increase the mAs by a factor of 4 (22)
* c) leave the mAs as is and reduce the kVp
* d) double the mAs
D
X-rays are produced
* a) using fast-moving atoms
* b) from unstable atom
* c) using fast moving metal
* d) using fast-moving electrons
D
The positive end of the x-ray tube is the
* a) filamen
* b) cathode
* c) anode
* d) envelope
C
Compton scattering results in
* a) a Compton electron
* b) a secondary electron
* c) a Compton scatter photon
* d) all of these
D