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100+ Free Sonography Canada Core Practice Questions

Pass your Sonography Canada Core Sonographic Skills (Sonographic Principles & Instrumentation) Examination exam on the first try — instant access, no signup required.

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Key Facts: Sonography Canada Core Exam

80 questions

The Core Sonographic Skills Examination has 80 single-best-answer multiple-choice questions

Sonography Canada - Entry-to-Practice Exams

80 minutes

Time allowed to answer the 80 Core exam questions

Sonography Canada - Core 6.1 Exam Blueprint

CAD $300

Core (NCP 6.1) examination fee, plus a CAD $150 application fee

Sonography Canada - Certification Fees 2026-2027

Modified Angoff

Criterion-referenced standard-setting method used to determine the Core pass standard

Sonography Canada certification methodology

4 attempts

Maximum attempts per certification exam within the eligibility period

Sonography Canada - Candidate Guide

Required for 3 credentials

Core success is required for Generalist, Cardiac and Vascular certification under NCP 6.1

Sonography Canada - Entry-to-Practice Exams

Retiring Jan 2027

Under NCP 7.0 the standalone Core exam is merged into specialty exams; current for 2026

Sonography Canada - Entry-to-Practice Exams

100

Free original practice questions provided here

OpenExamPrep

The Sonography Canada Core Sonographic Skills Examination is an 80-question, 80-minute, single-best-answer multiple-choice test that serves as the ultrasound-physics barrier in Canada's national sonography certification. The large majority of questions assess sonographic principles and instrumentation, with the remainder covering patient safety, ergonomics and self-protection, technical analysis, and legal and ethical professional practice. The Core (NCP 6.1) exam fee is CAD $300 plus a CAD $150 application fee, and passing is judged against a Modified Angoff criterion standard rather than a fixed percentage. Candidates have up to four attempts within their eligibility period. Under NCP 7.0 the standalone Core exam is being merged into the specialty exams from January 2027, but it remains current for 2026 sittings. This 100-question bank gives extra physics-focused practice with explanations for every option.

Sample Sonography Canada Core Practice Questions

Try these sample questions to test your Sonography Canada Core exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1In soft tissue, the average propagation speed of sound assumed by ultrasound machines is closest to:
A.330 m/s
B.1480 m/s
C.1540 m/s
D.4080 m/s
Explanation: Diagnostic ultrasound systems assume an average soft-tissue propagation speed of 1540 m/s. This value is built into the range equation the machine uses to place echoes at the correct depth.
2Propagation speed (c), frequency (f), and wavelength (lambda) are related by which equation?
A.c = f / lambda
B.c = f x lambda
C.lambda = c x f
D.f = c x lambda
Explanation: Propagation speed equals frequency multiplied by wavelength (c = f x lambda). Because c is essentially fixed in a given medium, raising frequency shortens the wavelength.
3A transducer operates at 5 MHz in soft tissue (1540 m/s). The approximate wavelength is:
A.0.31 mm
B.0.62 mm
C.3.08 mm
D.7.7 mm
Explanation: Wavelength = speed / frequency = 1540 m/s divided by 5,000,000 Hz = 0.000308 m, or about 0.31 mm. Shorter wavelengths improve axial resolution.
4Increasing transducer frequency primarily has which effect on the ultrasound beam?
A.Improves penetration but worsens resolution
B.Improves axial resolution but reduces penetration
C.Has no effect on resolution or penetration
D.Increases wavelength and reduces attenuation
Explanation: Higher frequency means shorter pulses and wavelengths, improving axial resolution. However, attenuation increases with frequency, so penetration decreases. This is the central trade-off in transducer selection.
5In soft tissue, the attenuation coefficient is approximately:
A.0.5 dB/cm/MHz
B.1.0 dB/cm per pulse
C.0.5 dB/cm regardless of frequency
D.5 dB/cm/MHz
Explanation: Soft-tissue attenuation is approximately 0.5 dB per centimeter per megahertz. Total attenuation rises with both depth and frequency, which is why deep imaging uses lower frequencies.
6A decrease of 3 dB in intensity corresponds to what change in intensity?
A.Intensity is halved
B.Intensity is doubled
C.Intensity drops to one tenth
D.Intensity is unchanged
Explanation: A 3 dB change represents a factor of two in intensity. A decrease of 3 dB halves the intensity, while an increase of 3 dB doubles it. A 10 dB change corresponds to a tenfold difference.
7The component of a transducer responsible for converting electrical energy into ultrasound and back is the:
A.Matching layer
B.Backing (damping) material
C.Piezoelectric (active) element
D.Acoustic lens
Explanation: The piezoelectric active element converts electrical voltage into mechanical vibration (transmit) and converts returning sound pressure into voltage (receive). This is the heart of the pulse-echo process.
8The purpose of the backing (damping) material behind the piezoelectric element is to:
A.Increase the duration of the pulse
B.Shorten the pulse and improve axial resolution
C.Increase the operating frequency
D.Improve the impedance match with tissue
Explanation: Damping material absorbs vibration so the element rings for a shorter time. This shortens the spatial pulse length, improving axial resolution and broadening the bandwidth.
9Axial resolution is determined primarily by:
A.The width of the beam
B.The spatial pulse length
C.The pulse repetition frequency
D.The depth of the reflector
Explanation: Axial resolution equals half the spatial pulse length and describes the ability to separate two reflectors along the beam axis. Shorter pulses (higher frequency, good damping) give better axial resolution.
10Lateral resolution is best (smallest measurable separation) at which location in the beam?
A.In the near zone close to the transducer
B.At the focal zone
C.In the far zone
D.It is constant at all depths
Explanation: Lateral resolution depends on beam width, which is narrowest at the focal zone. Therefore lateral resolution is best at the focus and degrades in the diverging far zone.

About the Sonography Canada Core Exam

The Core Sonographic Skills Examination is the physics and principles barrier within Sonography Canada's national certification pathway. It consists of 80 single-best-answer multiple-choice questions answered in 80 minutes, and successful completion is required before or alongside the Generalist, Cardiac, or Vascular specialty examination to earn the corresponding credential. The exam is built to the Core 6.1 blueprint, which is derived from Sonography Canada's National Competency Profiles. The large majority of items test sonographic principles and instrumentation (ultrasound physics): wave properties, transducers, resolution, image formation, Doppler, artifacts, bioeffects and safety. The remaining items cover patient safety and infection control, self-protection and ergonomics, technical analysis, and legal, ethical and professional practice. Under NCP 7.0, beginning January 2027, the standalone Core written exam is being retired and its content integrated into each specialty exam; the standalone Core remains current for 2026 sittings.

Assessment

80 single-best-answer multiple-choice questions built to the Core 6.1 blueprint. Most items assess sonographic principles and instrumentation (ultrasound physics), with smaller portions on patient safety, self-protection and ergonomics, technical analysis, and legal/ethical professional practice.

Time Limit

80 minutes for 80 questions, roughly one minute per question.

Passing Score

Criterion-referenced standard determined by a Modified Angoff process with statistical equating. There is no published fixed percentage; candidates pass by meeting the panel-set competence standard.

Exam Fee

CAD $300 for the Core (NCP 6.1) examination plus a non-refundable application fee of CAD $150, totalling CAD $450 per attempt. (Sonography Canada)

Sonography Canada Core Exam Content Outline

78%

Sonographic Principles & Instrumentation (Ultrasound Physics)

The dominant content area. Covers acoustic wave properties (frequency, wavelength, propagation speed, period), attenuation and the decibel scale, pulse-echo and the range equation, transducers and piezoelectric behaviour, beam formation and focusing, axial/lateral/elevational resolution, image formation and signal processing, dynamic range and gain/TGC, Doppler (continuous wave, pulsed wave, spectral, color, power), aliasing and the Nyquist limit, hemodynamics, artifacts (reverberation, shadowing, enhancement, mirror image, comet tail), bioeffects, thermal and mechanical indices, ALARA and quality assurance.

13%

Patient Safety, Self-Protection & Technical Analysis

Infection control and universal precautions, transducer disinfection, patient comfort and safety, recognizing urgent findings, and analysis of image quality and equipment performance. Also includes sonographer self-protection: ergonomics, neutral posture and work-related musculoskeletal disorder (WRMSD) prevention.

9%

Legal, Ethical & Professional Practice

Scope of practice, professional codes of ethics, confidentiality and privacy, informed consent, accurate documentation, professional conduct, and recognizing, responding to and disclosing adverse events.

How to Pass the Sonography Canada Core Exam

What You Need to Know

  • Passing score: Criterion-referenced standard determined by a Modified Angoff process with statistical equating. There is no published fixed percentage; candidates pass by meeting the panel-set competence standard.
  • Assessment: 80 single-best-answer multiple-choice questions built to the Core 6.1 blueprint. Most items assess sonographic principles and instrumentation (ultrasound physics), with smaller portions on patient safety, self-protection and ergonomics, technical analysis, and legal/ethical professional practice.
  • Time limit: 80 minutes for 80 questions, roughly one minute per question.
  • Exam fee: CAD $300 for the Core (NCP 6.1) examination plus a non-refundable application fee of CAD $150, totalling CAD $450 per attempt.

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

Sonography Canada Core Study Tips from Top Performers

1Master the core relationships before memorizing: propagation speed equals frequency times wavelength, and in soft tissue speed is about 1540 m/s, so higher frequency means shorter wavelength and better axial resolution but more attenuation.
2Drill the decibel and attenuation rules: attenuation in soft tissue is roughly 0.5 dB/cm/MHz, and a 3 dB change halves or doubles intensity while a 10 dB change is a tenfold change.
3Understand aliasing concretely: it appears when the Doppler shift exceeds the Nyquist limit (half the pulse repetition frequency); fix it by raising the PRF/scale, lowering transducer frequency, shifting the baseline or using continuous-wave Doppler.
4Learn each artifact by cause: reverberation from strong parallel reflectors, shadowing behind attenuating structures, enhancement behind weak attenuators, and mirror image from a strong reflector like the diaphragm.
5Tie safety to the indices: the thermal index estimates heating and the mechanical index estimates cavitation risk; ALARA means using the lowest output and shortest time, with extra caution in obstetric and ophthalmic scanning.
6Do not neglect the non-physics items: review universal precautions and transducer disinfection, ergonomic neutral posture to prevent work-related musculoskeletal injury, and the duty to recognize and disclose adverse events.

Frequently Asked Questions

How many questions are on the Sonography Canada Core exam and how long is it?

The Core Sonographic Skills Examination has 80 single-best-answer multiple-choice questions answered within an 80-minute time limit, about one minute per question.

What does the Core exam mostly test?

Most questions assess sonographic principles and instrumentation, that is ultrasound physics: wave properties, transducers, resolution, image formation, Doppler, artifacts, bioeffects and safety. The remainder covers patient safety, ergonomics, technical analysis and professional ethics.

What is the passing standard for the Core exam?

Sonography Canada uses a Modified Angoff process with statistical equating to set a criterion-referenced competence standard. There is no published fixed passing percentage; you pass by meeting the panel-set standard for your sitting.

How much does the Core exam cost?

Under NCP 6.1 the Core examination fee is CAD $300, plus a non-refundable application fee of CAD $150, for a total of CAD $450 per attempt.

Is the standalone Core exam being discontinued?

Yes. Under NCP 7.0, beginning January 2027, there will no longer be a standalone Core written exam and its content will be integrated into the Generalist, Cardiac and Vascular specialty exams. The standalone Core remains current for 2026 sittings.

Are these official Sonography Canada practice questions?

No. These are original OpenExamPrep questions modelled on the Core 6.1 blueprint competency areas. Sonography Canada sells its own official practice exams separately.