LRA 211 EXAM QUESTIONS AND
ANSWERS ALL CORRECT
The primary disadvantage to the stationary anode is that it - Answer- Heats up too
quickly during x-ray production
X-ray tubes with a stationary anode design may be found today - Answer- In medical
areas that only need small x-ray exposures
The rotating anode design uses a disc whose core is made of - Answer- Molybdenum
One of the reasons that molybdenum is used in rotating anodes is because it is -
Answer- Light and strong
Tungsten is used to coat the anode disc because it - Answer- has a high atomic number
The portion of the induction motor that is outside the tube enclosure is the - Answer-
Stator
With a rotating anode, the focal spot becomes a focal - Answer- Track
During x-ray production, the electrons penetrate the target approximately - Answer-
0.5mm
Radiation interacting with air is more likely to be _____________, resulting in that area
of the image being darker. - Answer- transmitted
Dense material, like bone, is considered: - Answer- radiopaque
The device that receives the radiation after it exits the patient is the - Answer- Image
receptor
Which of the following is an example of an image receptor? - Answer- b. film screen and
digital
The three fundamental particles of the atom are the - Answer- proton, neutron, electron
The atomic nucleus contains - Answer- protons and neutrons
, The component of the nucleus that has a positive charge and mass is the - Answer-
protons
The component of the nucleus that has mass but no electrical charge is the - Answer-
Neutron
If an atom has more electrons than protons, it will - Answer- Negative
When an atom becomes negatively or positively charged it is usually due to a change in
the number of - Answer- Electrons
A negative ion is - Answer- has more electrons than pr
A positive ion is - Answer- has more protons than electrons
If a particle strikes a nucleus with the same amount of energy as the atom's nuclear
binding energy - Answer- it can split the atom
The electrons stay in orbit around the nucleus because of - Answer- Protons
The electron binding energy is stronger when - Answer- Closer to the nucleas
The electron shell closest to the nucleus is lettered - Answer- K
Electromagnetic radiation - Answer- has no mass
What kind of disturbance does electromagnetic radiation NOT cause? - Answer-
mechanical
Which of the following is not part of the electromagnetic spectrum? - Answer- Radio
waves
When considering the wave properties of electromagnetic radiation, the distance from
the peak of one wave to the next is - Answer- Wavelength
As the wave's frequency increases, the wavelength - Answer- Decreases
As a wave's wavelength increases, its frequency - Answer- its frequency increases
Wavelength is generally measured in - Answer- meters
Frequency is typically measured in - Answer- Hertz
The process of removing an electron from an atom isX-rays are produced - Answer-
ionization
ANSWERS ALL CORRECT
The primary disadvantage to the stationary anode is that it - Answer- Heats up too
quickly during x-ray production
X-ray tubes with a stationary anode design may be found today - Answer- In medical
areas that only need small x-ray exposures
The rotating anode design uses a disc whose core is made of - Answer- Molybdenum
One of the reasons that molybdenum is used in rotating anodes is because it is -
Answer- Light and strong
Tungsten is used to coat the anode disc because it - Answer- has a high atomic number
The portion of the induction motor that is outside the tube enclosure is the - Answer-
Stator
With a rotating anode, the focal spot becomes a focal - Answer- Track
During x-ray production, the electrons penetrate the target approximately - Answer-
0.5mm
Radiation interacting with air is more likely to be _____________, resulting in that area
of the image being darker. - Answer- transmitted
Dense material, like bone, is considered: - Answer- radiopaque
The device that receives the radiation after it exits the patient is the - Answer- Image
receptor
Which of the following is an example of an image receptor? - Answer- b. film screen and
digital
The three fundamental particles of the atom are the - Answer- proton, neutron, electron
The atomic nucleus contains - Answer- protons and neutrons
, The component of the nucleus that has a positive charge and mass is the - Answer-
protons
The component of the nucleus that has mass but no electrical charge is the - Answer-
Neutron
If an atom has more electrons than protons, it will - Answer- Negative
When an atom becomes negatively or positively charged it is usually due to a change in
the number of - Answer- Electrons
A negative ion is - Answer- has more electrons than pr
A positive ion is - Answer- has more protons than electrons
If a particle strikes a nucleus with the same amount of energy as the atom's nuclear
binding energy - Answer- it can split the atom
The electrons stay in orbit around the nucleus because of - Answer- Protons
The electron binding energy is stronger when - Answer- Closer to the nucleas
The electron shell closest to the nucleus is lettered - Answer- K
Electromagnetic radiation - Answer- has no mass
What kind of disturbance does electromagnetic radiation NOT cause? - Answer-
mechanical
Which of the following is not part of the electromagnetic spectrum? - Answer- Radio
waves
When considering the wave properties of electromagnetic radiation, the distance from
the peak of one wave to the next is - Answer- Wavelength
As the wave's frequency increases, the wavelength - Answer- Decreases
As a wave's wavelength increases, its frequency - Answer- its frequency increases
Wavelength is generally measured in - Answer- meters
Frequency is typically measured in - Answer- Hertz
The process of removing an electron from an atom isX-rays are produced - Answer-
ionization
