LMRT ASSESSMENT TEST 2025| BRAND NEW
ACTUAL EXAM WITH 100% VERIFIED
QUESTIONS AND CORRECT SOLUTIONS|
GUARANTEED VALUE PACK| ACE YOUR
GRADES.
1. . What type of current is required for proper operation of the x-ray tube?
- Correct Answer-Direct
2. Electromagnetic radiation travels: - Correct Answer-In waves along a
straight path
3. Frequency is defined as: - Correct Answer-The number of waves
passing a point per unit time
4. Wavelength is defined as the distance from: - Correct Answer-Peak to
peak of the wave
5. Wavelength and frequency are: - Correct Answer-Inversely proportional
to each other
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6. The x-ray beam changes as it travels through the patient by a process
called: - Correct Answer-Attenuation
7. The intensity of radiation is inversely proportional to the square of the
distance between the source of radiation and the person receiving it.
This describes the: - Correct Answer-inverse square law
8. Electricity is supplied to the imaging department by a: - Correct Answer-
Generator
9. High-frequency power: - Correct Answer-Has almost no ripple
10. The primary advantage of three-phase power is that: - Correct
Answer-Voltage never drops to zero
11. A variable transformer that is used to select kVp for the x-ray circuit is
the: - Correct Answer-Autotransformer
12. A transformer that has more turns in the secondary coil than in the
primary coil is called a: - Correct Answer-Step-up transformer
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13. What is the transformer used to boost voltage to kilovoltage levels
called? - Correct Answer-Step-up transformer
14. Voltage coming to the x-ray machine is kept constant through the use
of a(n): - Correct Answer-Line voltage compensator
15. A step-down transformer: - Correct Answer-Steps down voltage
16. Where does thermionic emission occur? - Correct Answer-Cathode
17. . Which of the following devices is prereading? - Correct Answer-kVp
meter
18. Which device reduces voltage and provides current to produce an
electron cloud or space charge at the filament? - Correct Answer-Step-
down transformer
19. What changes AC to DC? - Correct Answer-Rectifier