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TCDHA RAD 1 Actual Exam Newest 2026/2027
Complete 100 Questions And Correct Detailed
Answers ||Verified Exam!!!(verified Answers) ||Already
Graded A+||Newest Exam!!!
Who observed that discharges emitted from the negative
electrode of a vacuum tube traveled in straight lines,
produced heat, and resulted in 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.
,2|Page
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 the process of 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
, 3|Page
What are accelerated particles with a mass of 1 and no
electrical charge? - ANSWER-Neutrons
Which radiation are human-made or occur naturally? -
ANSWER-Electromagnetic
TRUE OF FALSE:
Electromagnetic radiations are NOT a form of particulate
radiation. - ANSWER-TRUE
TRUE OR FALSE:
Electromagnetic radiations HAVE mass. - ANSWER-
FALSE
During the production of x-rays, what carries out the heat
produced? - ANSWER-The copper stem
________ Portion of the tube permits a small number of x-
rays to exit from the X-ray tube. - ANSWER-The Unleaded
glass window
TCDHA RAD 1 Actual Exam Newest 2026/2027
Complete 100 Questions And Correct Detailed
Answers ||Verified Exam!!!(verified Answers) ||Already
Graded A+||Newest Exam!!!
Who observed that discharges emitted from the negative
electrode of a vacuum tube traveled in straight lines,
produced heat, and resulted in 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.
,2|Page
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 the process of 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
, 3|Page
What are accelerated particles with a mass of 1 and no
electrical charge? - ANSWER-Neutrons
Which radiation are human-made or occur naturally? -
ANSWER-Electromagnetic
TRUE OF FALSE:
Electromagnetic radiations are NOT a form of particulate
radiation. - ANSWER-TRUE
TRUE OR FALSE:
Electromagnetic radiations HAVE mass. - ANSWER-
FALSE
During the production of x-rays, what carries out the heat
produced? - ANSWER-The copper stem
________ Portion of the tube permits a small number of x-
rays to exit from the X-ray tube. - ANSWER-The Unleaded
glass window
