EXAMINATION TEST 2026 QUESTIONS
WITH SOLUTIONS GRADED A+
⩥ not following safety practices. Answer: One cause of overexposure is:
⩥ Wilhelm Röntgen. Answer: Who discovered x-rays?
⩥ 8 November 1895. Answer: When were x-rays discovered?
⩥ Marie Curie. Answer: Who coined the term "radioactivity"?
⩥ Henri Becquerel. Answer: Who discovered radioactivity?
⩥ Ernest Rutherford. Answer: Which pioneer discovered that radioactive
material has a half-life?
⩥ 4 days. Answer: How long after news of x-rays reached the U.S. were
they first used?
⩥ not following established procedures. Answer: The main cause of
overexposures of radiographic personnel is:
,⩥ long hours, time constrictions, and weather. Answer: Mistakes leading
to an overexposure can be caused by:
⩥ number of protons in the nucleus of an atom. Answer: The atomic
number represents the:
⩥ total number of protons and neutrons in the nucleus of an atom.
Answer: The atomic weight represents the:
⩥ particulate and electromagnetic. Answer: The two basic types of
radiation are:
⩥ decrease. Answer: As the wavelength of an x-ray increases, the
penetrating ability of the radiation would:
⩥ Van de Graaff generator, linear accelerator, and betatron generator.
Answer: Which three of these would be considered high voltage
generators: Van de Graaff generator, linear accelerator, glass x-ray tube,
betatron generator?
⩥ origin. Answer: The main difference between x-rays and gamma rays
of the same energy is the:
, ⩥ electrons. Answer: Elementary particle units with a negative electrical
charge and a weight approximately equal to 1/1840th that of a proton
are:
⩥ protons. Answer: Positively charged elementary particles with a
weight of 1AMU are known as:
⩥ neutrons. Answer: Uncharged elementary particles with a weight
slightly higher than a proton are called:
⩥ nucleus. Answer: The area known as the center of an atom is called
the:
⩥ A number. Answer: An element's atomic weight is also known as the:
⩥ protons. Answer: An element is identified by the number of _______
in its nucleus.
⩥ high-speed electrons are emitted from the cathode and strike the target
within a vacuum-sealed envelope. Answer: X-radiation is produced
when a supply of:
⩥ free electrons, means of acceleration, and a target. Answer: Three
things needed to generate an x-ray are: