LMRT Assessment Test Questions With Verified Answers.
1 view 0 purchase
Course
LMRT
Institution
LMRT
olid-state silicon-based diodes? - answerrectifier
What regulates the duration of x-ray production? - answerTimer
What is located in the x-ray circuit between the high-voltage transformer and the x-ray tube? -
answerRectifier
Which of the following measures tube current? - answermA meter
What ...
LMRT Assessment Test Questions With
Verified Answers.
What type of current is required for proper operation of the x-ray tube? - answer✔Direct
Electromagnetic radiation travels: - answer✔In waves along a straight path
Frequency is defined as: - answer✔The number of waves passing a point per unit time
Wavelength is defined as the distance from: - answer✔Peak to peak of the wave
Wavelength and frequency are: - answer✔Inversely proportional to each other
The x-ray beam changes as it travels through the patient by a process called: -
answer✔Attenuation
The intensity of radiation is inversely proportional to the square of the distance between the
source of radiation and the person receiving it. This describes the: - answer✔inverse square law
Electricity is supplied to the imaging department by a: - answer✔Generator
High-frequency power: - answer✔Has almost no ripple
The primary advantage of three-phase power is that: - answer✔Voltage never drops to zero
A variable transformer that is used to select kVp for the x-ray circuit is the: -
answer✔Autotransformer
A transformer that has more turns in the secondary coil than in the primary coil is called a: -
answer✔Step-up transformer
What is the transformer used to boost voltage to kilovoltage levels called? - answer✔Step-up
transformer
Voltage coming to the x-ray machine is kept constant through the use of a(n): - answer✔Line
voltage compensator
A step-down transformer: - answer✔Steps down voltage
Where does thermionic emission occur? - answer✔Cathode
. Which of the following devices is prereading? - answer✔kVp meter
Which device reduces voltage and provides current to produce an electron cloud or space charge
at the filament? - answer✔Step-down transformer
What changes AC to DC? - answer✔Rectifier
Which of the following is surrounded by a negatively charged focusing cup? - answer✔Filament
Which of the following is composed of solid-state silicon-based diodes? - answer✔rectifier
What regulates the duration of x-ray production? - answer✔Timer
What is located in the x-ray circuit between the high-voltage transformer and the x-ray tube? -
answer✔Rectifier
Which of the following measures tube current? - answer✔mA meter
What device spins at 10,000-12,000 rpm? - answer✔Anode
What device uses maximum heat storage ability of the tube to deliver mAs? - answer✔Falling
load generator
What is the source of bremsstrahlung and characteristic rays? - answer✔anode
What device is turned by a rotor? - answer✔anode
The process of thermionic emission causes: - answer✔Electrons to boil off the filament
The force with which the electron stream passes from cathode to anode is a result of _____
passing through the x-ray tube. - answer✔Kilovoltage
Most of the energy conversion in the x-ray tube produces: - answer✔Heat
X-rays are produced as incident electrons are slowed going past the nuclei of target atoms by a
process called: - answer✔Bremsstrahlung
. X-rays are produced as incident electrons collide with inner shell electrons in target atoms by a
process called: - answer✔Characteristic
What percentage of energy in the x-ray tube is converted to x-rays? - answer✔1%
The x-ray beam is: - answer✔Heterogeneous or polyenergetic—consisting of many different
energies (wavelengths)
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Brainbarter. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.
