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RT Level 1 Questions with Detailed Verified Answers
addition of replenisher Ans: ✓ ✓ ✓ The activity of the developer solution is maintained stable by
The penetrameter thickness Ans: ✓ ✓ ✓ When referring to a 2T or 4T hole in the ASTM
penetrameter, the T refers to
The characteristic curve Ans: ✓ ✓ ✓ A graph whic expresses the relationship between the
logarithm of the exposure applied to a photographic material and the resulting photographic
density is called
Result in unsharpness of the radiograph Ans: ✓ ✓ ✓ The accidental movement of the specimen or
film during exposure or the use of a focus-film distance that is too small will
simulate weld reinforcement Ans: ✓ ✓ ✓ The reason a shim is used is to
radiographic denefition Ans: ✓ ✓ ✓ The sharpness of the outline in the image of a radiograph is a
measure of
ions Ans: ✓ ✓ ✓ Atoms, molecules, and various subatomic particles which carry either a positive
or negative electrical charge are called
graininess Ans: ✓ ✓ ✓ When the minute silver grains group together they produce a visual
impression called
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5 to 8 minutes in 68 degrees F Ans: ✓ ✓ ✓ The normal development time for manually processing
X-Ray film is
backscattered radiation Ans: ✓ ✓ ✓ Scattered radiation caused by any material, such as a wall of
floor, on the film side of the specimen is referred to as
75 mr/hr Ans: ✓ ✓ ✓ in making an isotope exposure in an unshielded area, you find the dose rate
6 ft from the source is 1200mr/hr. What would be the dose rate at 24ft
the quality of the radiographic technique Ans: ✓ ✓ ✓ A penetrameter is used to indicate
186,000 miles per second Ans: ✓ ✓ ✓ The velocity of all electromagnetic radiation is
Any unnecessary exposure to radiation is excessive Ans: ✓ ✓ ✓ A general rule used to define the
amount of radiation exposure that is excessive is
Decrease exposure time Ans: ✓ ✓ ✓ Although there may be other reasons for using calcium
tungstate screens, they are mostly used for
X-rays of shorter wavelength and more penetrating power are produced Ans: ✓ ✓ ✓ As the
kilovoltage applied to the X-Ray tube is raised
the geometric unsharpness value Ans: ✓ ✓ ✓ The focal spot size of an x-ray machine must be
known in order to determine
overexposure and overdevelopment Ans: ✓ ✓ ✓ The 2 most common causes for excessively high
density radiographs are
dislodge any air bubbles clinging to emulsion Ans: ✓ ✓ ✓ When manually processing films, the
purpose for sharply tapping hanger 2 or 3 times is to
© Get it right 2025 Getaway - Stuvia US All rights reserved
RT Level 1 Questions with Detailed Verified Answers
addition of replenisher Ans: ✓ ✓ ✓ The activity of the developer solution is maintained stable by
The penetrameter thickness Ans: ✓ ✓ ✓ When referring to a 2T or 4T hole in the ASTM
penetrameter, the T refers to
The characteristic curve Ans: ✓ ✓ ✓ A graph whic expresses the relationship between the
logarithm of the exposure applied to a photographic material and the resulting photographic
density is called
Result in unsharpness of the radiograph Ans: ✓ ✓ ✓ The accidental movement of the specimen or
film during exposure or the use of a focus-film distance that is too small will
simulate weld reinforcement Ans: ✓ ✓ ✓ The reason a shim is used is to
radiographic denefition Ans: ✓ ✓ ✓ The sharpness of the outline in the image of a radiograph is a
measure of
ions Ans: ✓ ✓ ✓ Atoms, molecules, and various subatomic particles which carry either a positive
or negative electrical charge are called
graininess Ans: ✓ ✓ ✓ When the minute silver grains group together they produce a visual
impression called
© Get it right 2025 Getaway - Stuvia US All rights reserved
, Click here for more: Scholars nexus
5 to 8 minutes in 68 degrees F Ans: ✓ ✓ ✓ The normal development time for manually processing
X-Ray film is
backscattered radiation Ans: ✓ ✓ ✓ Scattered radiation caused by any material, such as a wall of
floor, on the film side of the specimen is referred to as
75 mr/hr Ans: ✓ ✓ ✓ in making an isotope exposure in an unshielded area, you find the dose rate
6 ft from the source is 1200mr/hr. What would be the dose rate at 24ft
the quality of the radiographic technique Ans: ✓ ✓ ✓ A penetrameter is used to indicate
186,000 miles per second Ans: ✓ ✓ ✓ The velocity of all electromagnetic radiation is
Any unnecessary exposure to radiation is excessive Ans: ✓ ✓ ✓ A general rule used to define the
amount of radiation exposure that is excessive is
Decrease exposure time Ans: ✓ ✓ ✓ Although there may be other reasons for using calcium
tungstate screens, they are mostly used for
X-rays of shorter wavelength and more penetrating power are produced Ans: ✓ ✓ ✓ As the
kilovoltage applied to the X-Ray tube is raised
the geometric unsharpness value Ans: ✓ ✓ ✓ The focal spot size of an x-ray machine must be
known in order to determine
overexposure and overdevelopment Ans: ✓ ✓ ✓ The 2 most common causes for excessively high
density radiographs are
dislodge any air bubbles clinging to emulsion Ans: ✓ ✓ ✓ When manually processing films, the
purpose for sharply tapping hanger 2 or 3 times is to
© Get it right 2025 Getaway - Stuvia US All rights reserved
