RAD MIDTERM 1 TCDHA ACTUAL TEST
PAPER 2026 QUESTIONS WITH SOLUTIONS
GRADED A+
⩥ On the electromagnetic spectrum which side represents lower "safer"
energy. Answer: Non ionizing radiation
⩥ On the electromagnetic spectrum, which side represents higher more
dangerous energy. Answer: Ionizing radition
⩥ What type of radiation are gamma rays an example of. Answer:
Ionizing radiation
⩥ Infrared radiation is an example of what. Answer: Non ionizing
radiation
⩥ Which type of radiation exists between ionizing and non ionizing
radiation. Answer: UV radiation
⩥ Which type of radiation has short wave length and can lead to cellular
mutations such as leukemia or cancer. Answer: Ionizing radiation
,⩥ Which radiation type has longer wave lengths and is used in every day
life such as microwaves or radio waves. Answer: Non-ionizing radiation
⩥ True or false: X-rays require a vacuum. Answer: False
⩥ Which type of radiation can be produced anywhere and doesn't
require a vacuum, but is more efficient with one. Answer: X-rays
⩥ What is the purpose of diagnostic imaging. Answer: Help confirm or
exclude clinically suspended pathological conditions
⩥ Why is lead placed on the back of the x-ray cassette. Answer: It
absorbs ionizing radiation
⩥ The more structures we have overlapping each other, the more ______
it will be. Answer: Radiopaque (whiter)
⩥ Denser tissue will appear in X-rays as. Answer: More radiopaque
(white)
⩥ Thinner, less dense tissue will appear in X-rays as. Answer: More
radiolucent (dark)
, ⩥ What is computed radiography. Answer: An image acquired in digital
format with the use of an imaging plate rather than film
⩥ What is direct radiography. Answer: No use of a cassette ( no image
plate reader)
⩥ What would be an example of direct radiography. Answer: A
photoconductor sensor converts X-ray energy into electrical signals
⩥ What are remnant rays. Answer: X rays that pass through to expose
film
⩥ What is the middle(straight) ray coming from an X-ray machine.
Answer: The Central ray
⩥ How are radiographs produced. Answer: directing an X ray beams at
part of the body allowing the remnant rays to expose a photosensitive
film
⩥ True or false: X rays will be absorbed differentially by the body.
Answer: True
⩥ X rays will be differentially absorbed by the body depending on.
Answer: The density of the substances they enter
PAPER 2026 QUESTIONS WITH SOLUTIONS
GRADED A+
⩥ On the electromagnetic spectrum which side represents lower "safer"
energy. Answer: Non ionizing radiation
⩥ On the electromagnetic spectrum, which side represents higher more
dangerous energy. Answer: Ionizing radition
⩥ What type of radiation are gamma rays an example of. Answer:
Ionizing radiation
⩥ Infrared radiation is an example of what. Answer: Non ionizing
radiation
⩥ Which type of radiation exists between ionizing and non ionizing
radiation. Answer: UV radiation
⩥ Which type of radiation has short wave length and can lead to cellular
mutations such as leukemia or cancer. Answer: Ionizing radiation
,⩥ Which radiation type has longer wave lengths and is used in every day
life such as microwaves or radio waves. Answer: Non-ionizing radiation
⩥ True or false: X-rays require a vacuum. Answer: False
⩥ Which type of radiation can be produced anywhere and doesn't
require a vacuum, but is more efficient with one. Answer: X-rays
⩥ What is the purpose of diagnostic imaging. Answer: Help confirm or
exclude clinically suspended pathological conditions
⩥ Why is lead placed on the back of the x-ray cassette. Answer: It
absorbs ionizing radiation
⩥ The more structures we have overlapping each other, the more ______
it will be. Answer: Radiopaque (whiter)
⩥ Denser tissue will appear in X-rays as. Answer: More radiopaque
(white)
⩥ Thinner, less dense tissue will appear in X-rays as. Answer: More
radiolucent (dark)
, ⩥ What is computed radiography. Answer: An image acquired in digital
format with the use of an imaging plate rather than film
⩥ What is direct radiography. Answer: No use of a cassette ( no image
plate reader)
⩥ What would be an example of direct radiography. Answer: A
photoconductor sensor converts X-ray energy into electrical signals
⩥ What are remnant rays. Answer: X rays that pass through to expose
film
⩥ What is the middle(straight) ray coming from an X-ray machine.
Answer: The Central ray
⩥ How are radiographs produced. Answer: directing an X ray beams at
part of the body allowing the remnant rays to expose a photosensitive
film
⩥ True or false: X rays will be absorbed differentially by the body.
Answer: True
⩥ X rays will be differentially absorbed by the body depending on.
Answer: The density of the substances they enter
