RTE 1401 Essentials of Radiographic Physics & Imaging Final Practice Test Latest Update 2025- 2026 Exam Questions with 100% Verified Correct Answers Guaranteed A+
A 12-volt battery use 12 Joules of energy to move
- 1 Coulomb of charge
- 2 Coulombs of charge
- 12 Coulombs of charge
d. 24 Coulombs of charge - CORRECT ANSWER: 1 Coulomb of charge
A radiograph with low radiographic contrast
- has very few densities
- has very similar densities
- has short-scale contrast
d. none of the above - CORRECT ANSWER: has very similar densities
Atoms with different atomic number but the same atomic mass numbers are
- isotopes
- isotones
- isobars
d. isomers - CORRECT ANSWER: isobars
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Determining which filament will be used during an exposure is done at the operating console by the selection
- small or large focal spot
- small or large fimament
- high or low exposure time
d. high or low kVp - CORRECT ANSWER: small or large focal spot
Half-life is defined as - CORRECT ANSWER: the time it takes for half the remaining atoms in an amount of radioactive element to decay
If a film image as sufficient but not optimal density
- it should be not be repeated
- it should be repeated using 30% more/less mAs
- it should be repeated using twice or half the mAs
d. none of the above - CORRECT ANSWER: it should not be repeated
In LCD monitors, the number of TFT's is equal to the
- number of crystals in the liquid crystal layer
- number of pixels displayed
- Lp/mm of resolution
d. display line system - CORRECT ANSWER: number of pixels displayed
Microwaves heat up food because their energy causes the atoms and molecules to
- dissolve
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