Exam (elaborations)
NEW TCDHA RAD MIDTERM ONE EXAM QUESTIONS AND 100% CORRECT ANSWERS (A+)
- Course
- Institution
NEW TCDHA RAD MIDTERM ONE EXAM QUESTIONS AND 100% CORRECT ANSWERS (A+)...
[Show more]
Content preview
NEW TCDHA RAD MIDTERM ONE EXAM QUESTIONS AND100% CORRECT ANSWERS (A+)
When adjusting vertical angulation, if the PID is placed above the occlusal plane and the
central ray is directed ________, the vertical angulation is referred to as ____________. -
ANSWER Downward; positive
Where would you place the meisal edge of the receptor when taking a premolar
bite-wing image? - ANSWER Midline of the mandibular canine
Where do you place the mesial edge of the receptor when capturing a molar bitewing
image? - ANSWER Distal of the mandibular first premolar
What degree of vertical angulation do you use when positioning the PID for bite-wing
exposures with bitetabs? - ANSWER +10 Degrees
A stream of energy with the capability of penetrating objects and recording the shadows
of those objects on the image receptor is. - ANSWER An x-ray
Radiology - ANSWER A medical specialty concerned with the use of x-rays
X-radiation is a high-energy radiation produced by. - ANSWER The collision of a beam of
electrons with a metal target in an X-ray tube.
Who in 1870 observed that discharges emitted from the negative electrode of a vacuum
tube travelled in straight lines, produced heat and caused a greenish fluorescence. -
ANSWER Johann Hittorf in 1870
William Crookes discovered. - ANSWER That cathode rays were streams of charged
particles; 1870s
, Who INTRODUCED the paralleling technique? - ANSWER C. Edmund Kells (1896)
Who MODIFIED the BISECTING technique and introduced the bite-wing technique? -
ANSWER Howard Riley Raper (1925)
What is an image? - ANSWER Is a picture or likeness of an object
A radiograph is. - ANSWER An image of two-dimensional representation of a
three-dimensional object.
A DENTAL radiograph is. - ANSWER Is the dental image produced on a recording
medium
TRUE OR FALSE:
The outer shells are stronger than the inner shells? - ANSWER FALSE!
Inner shells are stronger
What are fast-moving electrons emitted from the nucleus of radioactive atoms? -
ANSWER Beta Particles
What is radioactivity? - ANSWER The process by which certain unstable atoms or
elements undergo spontaneous disintegration, or decay, in effort to attain a more
balanced nuclear state.
_____ Particles are emitted from nuclei of heavy metals. - ANSWER ALPHA
_______ are accelerated particles with a mass of _____ and a charge of _____ - ANSWER
Protons; 1; +1
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 Easton. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
72042 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now