NBCE Part 2 - Diagnostic Imaging Exam
Questions With Accurate Answers 2025\2026
A+ Grade
An X-ray in the air that is 99% heat and 1% diagnostic.
- accurate answers-Roentgen
Roentgen equivalent in man
- accurate answers-REM
Roentgen absorbed dose
- accurate answers-RAD
The X-ray beam produced on what side (anode or cathode) is weaker?
- accurate answers-Anode side (positive charge)
the cathode cup is
- accurate answers-negative
What is phosphorescence?
- accurate answers-The ability of an object to emit light.
Ie. glow in the dark stuff have a lot of phosphorescence
What are the two primary types of radiation?
- accurate answers-Bramstrahlung and Characteristic.
MPD (maximum permissible dose)
- accurate answers-The maximum dose of radiation that a person can receive
in a given period of time 5(N-18)
Primary radiation
- accurate answers-Bremsstrahlumg (Braking) Most photons (nucleus
interaction)
Secondary raditation
- accurate answers-Scatter
, What are the two secondary types of radiation?
- accurate answers-Compton (outer shell electron collision) energy loss
Thompson (classical)
Low KvP will have what contrast?
- accurate answers-Higher contrast and low structures
Higher contrast means how many shades of gray?
- accurate answers-Less
High Kvp will have what contrast?
- accurate answers-Low contrast
Lower contrast means how many shades of gray?
- accurate answers-More
Velocity is measured with KvP or Mas? How about the amount?
- accurate answers-KVP: Velocity
MaS: Amont
What is the ratio of KvP to mAs when trying to alter the contrast and maintain
density?
- accurate answers-15 (kvp) / 50 (mAs)
This law relates distance (FFD) to intensity
- accurate answers-Inverse square law
When it comes to shadows when taking a radiograph, what is good and what
is bad?
- accurate answers-Umbra is good, penumbra is bad.
What size crystals for best detail in a radiograph?
- accurate answers-Small
Reduce anode heat
- accurate answers-1. Rotate anode (rotor)
2. Drop of oil
3. Long filament (cathode)
4. Line focus principle
Questions With Accurate Answers 2025\2026
A+ Grade
An X-ray in the air that is 99% heat and 1% diagnostic.
- accurate answers-Roentgen
Roentgen equivalent in man
- accurate answers-REM
Roentgen absorbed dose
- accurate answers-RAD
The X-ray beam produced on what side (anode or cathode) is weaker?
- accurate answers-Anode side (positive charge)
the cathode cup is
- accurate answers-negative
What is phosphorescence?
- accurate answers-The ability of an object to emit light.
Ie. glow in the dark stuff have a lot of phosphorescence
What are the two primary types of radiation?
- accurate answers-Bramstrahlung and Characteristic.
MPD (maximum permissible dose)
- accurate answers-The maximum dose of radiation that a person can receive
in a given period of time 5(N-18)
Primary radiation
- accurate answers-Bremsstrahlumg (Braking) Most photons (nucleus
interaction)
Secondary raditation
- accurate answers-Scatter
, What are the two secondary types of radiation?
- accurate answers-Compton (outer shell electron collision) energy loss
Thompson (classical)
Low KvP will have what contrast?
- accurate answers-Higher contrast and low structures
Higher contrast means how many shades of gray?
- accurate answers-Less
High Kvp will have what contrast?
- accurate answers-Low contrast
Lower contrast means how many shades of gray?
- accurate answers-More
Velocity is measured with KvP or Mas? How about the amount?
- accurate answers-KVP: Velocity
MaS: Amont
What is the ratio of KvP to mAs when trying to alter the contrast and maintain
density?
- accurate answers-15 (kvp) / 50 (mAs)
This law relates distance (FFD) to intensity
- accurate answers-Inverse square law
When it comes to shadows when taking a radiograph, what is good and what
is bad?
- accurate answers-Umbra is good, penumbra is bad.
What size crystals for best detail in a radiograph?
- accurate answers-Small
Reduce anode heat
- accurate answers-1. Rotate anode (rotor)
2. Drop of oil
3. Long filament (cathode)
4. Line focus principle
