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Key Facts: EHPLE Medical Radiology Technology Exam

200 Questions

Exam Structure

MoH HHrIPR-LEO Blueprint

Two blocks of 100

Total Testing Time

MoH Implementation Guideline (blocks of <=120 questions, >=30-minute break)

Not published

Candidate Registration Fee

MoH registration portal (hple.moh.gov.et)

Modified Angoff

Standard-Setting Method

MoH Licensure Framework

The EHPLE Medical Radiology Technology examination is Ethiopia's statutory computer-based licensing exam for BSc radiologic technology graduates, delivered as 200 four-option MCQs in a morning and an afternoon block of 100 questions each. The official MoH blueprint weights Patient Care at 78% (X-ray 26.5%, ultrasound 22.5%, computed tomography 11%, MRI 9.5%, special procedures 4.5%, quality assurance and safety 4%), with Scholar 7%, Leadership and Management 6%, Professionalism 5%, and Health Promotion 4%. The pass mark is set each round by a Modified-Angoff expert panel.

Sample EHPLE Medical Radiology Technology Practice Questions

Try these sample questions to review concepts for the EHPLE Medical Radiology Technology exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1In a diagnostic X-ray tube, what physical phenomenon occurs when the tungsten filament is heated by an electric current, releasing free electrons to form a space charge cloud?
A.Thermionic emission
B.Field emission
C.Secondary electron emission
D.Photoconductivity
Explanation: Thermionic emission is the thermal ejection of electrons from a heated metallic filament, specifically tungsten in X-ray tubes. When filament current heats the wire to incandescence, electrons gain sufficient thermal energy to overcome the metal's work function, forming a space charge cloud around the cathode.
2Which interaction accounts for the continuous energy spectrum of the diagnostic X-ray beam produced when high-speed projectile electrons are slowed and deflected by the electrostatic field of a tungsten target nucleus?
A.Characteristic radiation interaction
B.Coherent photon scattering
C.Bremsstrahlung radiation interaction
D.Compton photon interaction
Explanation: Bremsstrahlung radiation arises when high-speed cathode electrons penetrate the electron cloud of target tungsten atoms and are deflected and decelerated by the positive nuclear field. The loss of kinetic energy is radiated away as continuous-spectrum X-ray photons, comprising approximately 85% to 90% of the diagnostic beam.
3For a diagnostic X-ray tube with a tungsten target, what is the minimum tube voltage required to produce useful K-characteristic X-ray photons?
A.50.0 kVp
B.85.0 kVp
C.120.0 kVp
D.69.5 kVp
Explanation: Tungsten has an inner K-shell electron binding energy of 69.5 keV. To dislodge a K-shell electron and initiate the characteristic cascade that produces clinically useful K-characteristic X-rays, the incident projectile electron must possess kinetic energy equal to or exceeding 69.5 keV, requiring at least 69.5 kVp.
4Which geometric design principle allows an X-ray tube to maintain a large actual focal spot for superior heat dissipation while simultaneously creating a small effective focal spot to maximize radiographic spatial resolution?
A.The line-focus principle
B.The anode heel effect
C.The inverse square law
D.The reciprocity law
Explanation: The line-focus principle involves angling the beveled anode target face (typically between 7 and 17 degrees). This geometry projects a foreshortened effective focal spot down toward the patient and image receptor for sharp spatial resolution while preserving a larger actual focal spot on the target to distribute heat loading safely.
5When radiographing an anatomical region of varying thickness, such as the thoracic spine or femur, how should the X-ray tube be oriented to take advantage of the anode heel effect?
A.Place the anode over the thicker anatomy and the cathode over the thinner anatomy
B.Center the central ray directly over the thinnest region regardless of tube polarity
C.Angle the central ray 15 degrees toward the anode to equalize beam intensity
D.Place the cathode over the thicker anatomy and the anode over the thinner anatomy
Explanation: Due to the anode heel effect, X-rays emitted toward the anode side must pass through a greater thickness of target material and undergo self-absorption, reducing beam intensity. Radiation intensity is greatest under the cathode side; therefore, positioning the cathode end over thicker or denser anatomical regions balances image receptor exposure across the anatomy.
6Which primary X-ray interaction with matter involves total photon absorption by an inner-shell electron and is the principal contributor to radiographic subject contrast and patient absorbed dose?
A.Compton scattering
B.Photoelectric absorption
C.Pair production
D.Photodisintegration
Explanation: In photoelectric absorption, an incident X-ray photon transfers all of its energy to an inner-shell (K or L) electron, completely disappearing and ejecting a photoelectron. Because probability of absorption is directly proportional to the cube of the atomic number (Z^3), it provides excellent differential absorption between bone and soft tissue, governing subject contrast.
7What interaction between diagnostic X-ray photons and human tissue is the predominant source of occupational radiation exposure received by radiologic technologists during fluoroscopic procedures?
A.Compton scattering
B.Coherent scattering
C.Photoelectric absorption
D.Pair production
Explanation: Compton scattering occurs when an incident photon interacts with a loosely bound outer-shell electron, ejecting a Compton recoil electron and scattering the photon in a new direction with reduced energy. These scattered photons emerge from the patient in all directions and constitute virtually all secondary scatter radiation received by clinical staff.
8What occurs when a very low-energy diagnostic X-ray photon (below 10 keV) undergoes coherent (classical or Rayleigh) scattering in tissue?
A.An inner-shell electron is ejected with kinetic energy equal to the incident photon
B.An outer-shell electron is ejected and the photon loses half of its energy
C.The atom is momentarily excited and emits a scattered photon of identical energy and wavelength without causing ionization
D.A positron and electron pair are created within the atomic nucleus
Explanation: In coherent or classical scattering, low-energy incident photons interact with target atoms without sufficient energy to liberate orbital electrons. The bound electrons oscillate in resonance and emit a scattered photon of the exact same wavelength, energy, and frequency as the incident photon, altering only its trajectory without producing ionization.
9At what threshold photon energy can pair production occur, and why is this process clinically irrelevant in standard diagnostic medical radiography?
A.0.511 MeV; it requires vacuum conditions to manifest
B.5.0 MeV; it is only observed in radionuclide alpha emissions
C.10.0 MeV; it requires neutron bombardment of the target material
D.1.022 MeV; diagnostic tube potentials operate far below this threshold, never exceeding 150 kVp
Explanation: Pair production requires an incident photon to interact directly with the nuclear electromagnetic field, converting its energy into an electron-positron pair according to Einstein's mass-energy equation (E = mc^2). Because the rest mass of each particle is 0.511 MeV, the threshold energy is 1.022 MeV, which is far higher than diagnostic X-ray energies (maximum 150 kVp).
10According to national and international radiation safety standards, what is the minimum required total filtration (inherent plus added) for stationary general diagnostic X-ray equipment operating above 70 kVp?
A.1.0 mm aluminum equivalent
B.1.5 mm aluminum equivalent
C.2.5 mm aluminum equivalent
D.4.0 mm aluminum equivalent
Explanation: Radiation protection regulations mandate that stationary general diagnostic X-ray tubes operating above 70 kVp must provide at least 2.5 mm aluminum equivalent total filtration. This attenuates low-energy, non-penetrating photons that would otherwise be absorbed completely in superficial patient tissues without contributing to image formation.

About the EHPLE Medical Radiology Technology Exam

The Ethiopian Health Professionals Licensing Examination (EHPLE) for Medical Radiology Technology is the statutory national competency assessment administered by the Federal Ministry of Health (MoH) through the Health and Health-related Institutions and Professionals Regulatory Lead Executive Office (HHrIPR-LEO). It is intended for graduates holding a BSc in Radiologic Technology / Medical Radiography from accredited Ethiopian universities or evaluated foreign institutions, and it assesses clinical knowledge, technical competence, and ethical readiness to practise independently. The examination is delivered by computer as 200 four-option, single-best-answer MCQs in a morning and an afternoon block of 100 questions each. The official MoH blueprint weights Patient Care 78% (X-ray 26.5%, ultrasound 22.5%, computed tomography 11%, magnetic resonance imaging 9.5%, special procedures 4.5%, quality assurance and safety 4%), Scholar 7%, Leadership and Management 6%, Professionalism 5%, and Health Promotion and Disease Prevention 4%. Passing earns the professional licence required to practise as a radiologic technologist in Ethiopia.

Exam sponsor: Federal Ministry of Health (MoH) — Health and Health-related Institutions and Professionals Regulatory Lead Executive Office (HHrIPR-LEO). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

The MoH Implementation Guideline allots roughly 1.25 minutes per question and caps a single block at 120 questions / 2 hours 30 minutes, followed by a break of at least 30 minutes before the second block. A 200-item sitting is therefore delivered as a morning and an afternoon block of 100 questions each.

Time Limit

Two 100-question blocks with a break of at least 30 minutes

Passing Score

Set each round by an expert panel using the Modified-Angoff method (no fixed percentage)

Exam / Certification Fees

Not published by MoH as a fixed public tariff. A registration fee is paid through the official portal (hple.moh.gov.et); candidates who miss a sitting without an accepted reason pay the registration fee plus a 50% penalty (MoH Exam Administration Manual). Confirm the current amount on the registration announcement.

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

78%

Patient Care

X-ray (26.5%), ultrasound (22.5%), computed tomography (11%), magnetic resonance imaging (9.5%), special procedures (4.5%), and quality assurance and safety (4%).

7%

Scholar

Research literacy, evidence-based imaging practice, and continuing professional development.

6%

Leadership and Management

Imaging department leadership, health system management, and resource stewardship.

5%

Professionalism

Ethical principles, medico-legal practice, communication, collaboration, and standards of professional conduct.

4%

Health Promotion and Disease Prevention

Community assessment, radiation-risk communication, and preventive interventions.

Preparing for the EHPLE Medical Radiology Technology Exam

What You Need to Know

  • Passing score: Set each round by an expert panel using the Modified-Angoff method (no fixed percentage)
  • Assessment: The MoH Implementation Guideline allots roughly 1.25 minutes per question and caps a single block at 120 questions / 2 hours 30 minutes, followed by a break of at least 30 minutes before the second block. A 200-item sitting is therefore delivered as a morning and an afternoon block of 100 questions each.
  • Time limit: Two 100-question blocks with a break of at least 30 minutes
  • Exam / certification fees: Not published by MoH as a fixed public tariff. A registration fee is paid through the official portal (hple.moh.gov.et); candidates who miss a sitting without an accepted reason pay the registration fee plus a 50% penalty (MoH Exam Administration Manual). Confirm the current amount on the registration announcement. Official sources

Using Our Practice Resources

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

EHPLE Medical Radiology Technology: Suggested Study Strategy

1Master radiation physics and beam geometry, focusing on tube rating charts, cathode heel effect application, filtration types, scatter control grids, and inverse square law calculations.
2Thoroughly review anatomical landmarks, precise central ray entry points, patient body rotations, and respiration instructions for routine, trauma, and pediatric radiographic projections.
3Understand cross-sectional anatomy and physical principles of advanced imaging, including CT Hounsfield attenuation numbers, pitch calculations, MRI safety zones, RF specific absorption rate (SAR), and ultrasound Doppler artifacts.
4Learn digital imaging mechanics, differentiating indirect (scintillator + a-Si) from direct (a-Se) flat panel detectors, exposure index interpretation, DICOM header metadata, and mandatory periodic QC tests.
5Memorize contrast media safety guidelines, including renal screening thresholds (eGFR), acute anaphylactoid reaction classification, first-line emergency pharmacology (epinephrine 1:1,000 IM), and radiation protection standards under ALARA and Ethiopian radiation regulations.

Frequently Asked Questions

What is the Ethiopian Health Professionals Licensing Examination (EHPLE) for Radiography?

The EHPLE Radiography is the statutory national licensing assessment administered by the Health and Health-related Institutions and Professionals Regulatory Lead Executive Office (HHrIPR-LEO) under the Ethiopian Ministry of Health (MoH). Successful completion is mandatory for graduates of BSc Radiologic Technology programs to obtain a professional license to practice medical imaging in Ethiopia.

What is the examination format, timing, and question structure for EHPLE Radiography?

The examination consists of 200 multiple-choice questions administered electronically in English. The test is divided in a morning and an afternoon block of 100 questions each (100 questions per session) separated by a scheduled break, covering all five blueprint competency domains.

How is the passing score determined for the EHPLE Radiography examination?

Passing criteria are established for each national examination round by an expert panel of senior radiologic technologists, radiologists, and academic educators using the Modified Angoff standard-setting methodology. The cut score reflects minimum acceptable competency rather than a fixed arbitrary percentage.

What competency domains are covered on the EHPLE Medical Radiology Technology blueprint?

The official MoH Medical Radiology Technology Information Booklet weights five key professional roles: Patient Care 78%, broken down into X-ray (26.5%), ultrasound (22.5%), computed tomography (11%), magnetic resonance imaging (9.5%), special procedures (4.5%) and quality assurance and safety (4%); followed by Scholar 7%, Leadership and Management 6%, Professionalism 5%, and Health Promotion and Disease Prevention 4%.

Who is eligible to register for the EHPLE Radiography exam and how do candidates apply?

Graduates holding a Bachelor of Science (BSc) degree in Radiologic Technology / Medical Radiography from accredited Ethiopian universities or health sciences colleges, as well as foreign-trained radiologic technologists with credentials verified by the Ministry of Education and MOH, are eligible to register online via the official portal at https://hple.moh.gov.et/ with a registration fee announced by the Ministry of Health for each round.

Are these practice questions an official EHPLE paper?

No. The EHPLE is set and delivered only by the Federal Ministry of Health; these questions are an independent study aid written against the official Information Booklet blueprint and Ethiopian national clinical guidelines. The official examination is delivered in English as computer-based, four-option, single-best-answer MCQs, so the item format here matches the real assessment, but this bank is not an official past paper, a released item pool, or a simulation of the live testing environment. Always confirm registration dates, fees, and exam-day rules on moh.gov.et/ehple and hple.moh.gov.et.