RT Level 1 questions with verified answers
1. A beam of radiation consisting of a single wavelength is known as:
A. Characteristic radiation
B. Fluoroscopic radiation
C. Monochromatic radiation
D. Microscopic radiation Ans✓✓✓ C
1. A Co-60 source has a half life of:
A. 1.2 years
B. 6 months
C. 5.3 years
D. 75 days Ans✓✓✓ C
1. A curie is the equivalent of:
A. 0.001 mCi
B. 1,000 mCi
C. 1,000 MCi
D. 100 MCi Ans✓✓✓ B
1. A fluorescent intensifying screen will:
,A. Transform X-Ray energy into visible or ultraviolet light
B. Result in reticulation
C. Decrease the graininess of the image when using gamma rays
D. Increase the definition in a radiograph Ans✓✓✓ A
1. A general rule often employed for determining the kilovoltage to be
used when X-Raying a part is that:
A. The kilovoltage should be as high as other factors will permit
B. The kilovoltage should be as low as other factors will permit
C. The kilovoltage is always a fixed value and cannot be changed
D. The kilovoltage is not an important variable and can be changed over
a wide range without affecting the radiograph Ans✓✓✓ B
1. A good radiograph is obtained using milliamperage of 15 mA and an
exposure time of 0.5 minutes. What exposure time will be necessary to
produce an equivalent radiograph if the millamperage is changed to
milliaperes and all other conditions remain the same?
A. 4.5 minutes
B. 1.5 minutes
C. 3 minutes
D. 0.5 minutes Ans✓✓✓ B
,1. A graph showing the relation between material thickness, kilovoltage,
and exposure is called:
A. A bar chart
B. An exposure chart
C. A characteristic curve
D. An H&D curve Ans✓✓✓ B
1. A graph which expresses the relationship between the logarithm of the
exposure applied to a photographic material and the resulting
photographic density is called:
A. A bar chart
B. An exposure chart
C. The characteristic curve
D. A logarithmic chart Ans✓✓✓ C
1. A large source size can be compensated for by:
A. Increasing the source-to-specimen distance
B. Addition of lead screens
C. Increasing the specimen-to-film distance
D. Increasing penumbra Ans✓✓✓ A
, 1. A penetrameter is used to indicate the:
A. Size of discontinuities in a part
B. Density of the film
C. Amount of film contrast
D. Quality of the radiographic technique Ans✓✓✓ D
1. A photographic image recorded by the passage of X- or gamma rays
through a specimen onto a film is called a:
A. Fluoroscopic image
B. Radiograph
C. Isotopic reproduction
D. None of the above Ans✓✓✓ B
1. A properly exposed radiograph that is developed in a developer
solution at a temperature of 14 °C (58 °F) for 5 minutes will probably
be:
A. Overdeveloped
B. Underdeveloped
C. Fogged
D. Damaged by frilling Ans✓✓✓ B
1. A beam of radiation consisting of a single wavelength is known as:
A. Characteristic radiation
B. Fluoroscopic radiation
C. Monochromatic radiation
D. Microscopic radiation Ans✓✓✓ C
1. A Co-60 source has a half life of:
A. 1.2 years
B. 6 months
C. 5.3 years
D. 75 days Ans✓✓✓ C
1. A curie is the equivalent of:
A. 0.001 mCi
B. 1,000 mCi
C. 1,000 MCi
D. 100 MCi Ans✓✓✓ B
1. A fluorescent intensifying screen will:
,A. Transform X-Ray energy into visible or ultraviolet light
B. Result in reticulation
C. Decrease the graininess of the image when using gamma rays
D. Increase the definition in a radiograph Ans✓✓✓ A
1. A general rule often employed for determining the kilovoltage to be
used when X-Raying a part is that:
A. The kilovoltage should be as high as other factors will permit
B. The kilovoltage should be as low as other factors will permit
C. The kilovoltage is always a fixed value and cannot be changed
D. The kilovoltage is not an important variable and can be changed over
a wide range without affecting the radiograph Ans✓✓✓ B
1. A good radiograph is obtained using milliamperage of 15 mA and an
exposure time of 0.5 minutes. What exposure time will be necessary to
produce an equivalent radiograph if the millamperage is changed to
milliaperes and all other conditions remain the same?
A. 4.5 minutes
B. 1.5 minutes
C. 3 minutes
D. 0.5 minutes Ans✓✓✓ B
,1. A graph showing the relation between material thickness, kilovoltage,
and exposure is called:
A. A bar chart
B. An exposure chart
C. A characteristic curve
D. An H&D curve Ans✓✓✓ B
1. A graph which expresses the relationship between the logarithm of the
exposure applied to a photographic material and the resulting
photographic density is called:
A. A bar chart
B. An exposure chart
C. The characteristic curve
D. A logarithmic chart Ans✓✓✓ C
1. A large source size can be compensated for by:
A. Increasing the source-to-specimen distance
B. Addition of lead screens
C. Increasing the specimen-to-film distance
D. Increasing penumbra Ans✓✓✓ A
, 1. A penetrameter is used to indicate the:
A. Size of discontinuities in a part
B. Density of the film
C. Amount of film contrast
D. Quality of the radiographic technique Ans✓✓✓ D
1. A photographic image recorded by the passage of X- or gamma rays
through a specimen onto a film is called a:
A. Fluoroscopic image
B. Radiograph
C. Isotopic reproduction
D. None of the above Ans✓✓✓ B
1. A properly exposed radiograph that is developed in a developer
solution at a temperature of 14 °C (58 °F) for 5 minutes will probably
be:
A. Overdeveloped
B. Underdeveloped
C. Fogged
D. Damaged by frilling Ans✓✓✓ B
