SONOGRAPHY CANADA (GENERALIST) 1 EXAM
LATEST 2026 ACTUAL EXAM TEST BANK| GENERAL
SONOGRAPHY REVIEW WITH COMPLETE 950 REAL
EXAM QUESTIONS AND CORRECT VERIFIED ANSWERS/
ALREADY GRADED A+ (MOST RECENT!!)
1. What is the assumed propagation speed of sound in soft
tissue?
A) 1450 m/s
B) 1540 m/s
C) 344 m/s
D) 300,000 km/s
Answer: B) 1540 m/s
Rationale: Ultrasound systems are calibrated to an average soft
tissue speed of 1540 m/s (1.54 mm/μs). Any deviation causes
speed error artifacts .
2. Frequency is defined as:
A) The length of one cycle in mm
B) The number of cycles per second
C) The time for one cycle to occur
1
, D) The strength of the sound wave
Answer: B) The number of cycles per second
Rationale: Frequency (f) = 1/period, measured in Hertz (Hz).
Diagnostic ultrasound uses frequencies typically between 2–15
MHz .
3. Which transducer component converts electrical energy into
mechanical energy?
A) Matching layer
B) Damping material
C) Piezoelectric crystal
D) Acoustic lens
Answer: C) Piezoelectric crystal
Rationale: The piezoelectric crystal (typically PZT) converts
electrical potential into mechanical vibrations (sound) and vice
versa via the piezoelectric effect .
4. The focal zone (focal region) refers to the area where the
sound beam is:
A) Widest
B) Most divergent
2
, C) Narrowest
D) Least intense
Answer: C) Narrowest
Rationale: The focal zone is the region where the beam
diameter is smallest, providing the best lateral resolution .
5. Wavelength is _________ proportional to frequency.
A) Directly
B) Inversely
C) Exponentially
D) Not
Answer: B) Inversely
Rationale: μ = c/f. Higher frequency = shorter wavelength,
which improves axial resolution .
6. Axial resolution is determined primarily by:
A) Beam width
B) Pulse length (SPL)
C) Focal depth
D) Gain settings
3
, Answer: B) Pulse length (SPL)
Rationale: Axial resolution = ½ SPL. Shorter pulses (higher
frequency, fewer cycles) provide better axial resolution .
7. Which term describes the time from the start of one pulse to
the start of the next?
A) Pulse duration
B) Pulse repetition period (PRP)
C) Wavelength
D) Duty factor
Answer: B) Pulse repetition period (PRP)
Rationale: PRP is the time from the beginning of one pulse to the
beginning of the next. Pulse repetition frequency (PRF) = 1/PRP .
8. The Curie point refers to:
A) Optimal frequency for imaging
B) Temperature at which a crystal loses piezoelectric
properties
C) Maximum allowable MI
D) Speed of sound in bone
4
LATEST 2026 ACTUAL EXAM TEST BANK| GENERAL
SONOGRAPHY REVIEW WITH COMPLETE 950 REAL
EXAM QUESTIONS AND CORRECT VERIFIED ANSWERS/
ALREADY GRADED A+ (MOST RECENT!!)
1. What is the assumed propagation speed of sound in soft
tissue?
A) 1450 m/s
B) 1540 m/s
C) 344 m/s
D) 300,000 km/s
Answer: B) 1540 m/s
Rationale: Ultrasound systems are calibrated to an average soft
tissue speed of 1540 m/s (1.54 mm/μs). Any deviation causes
speed error artifacts .
2. Frequency is defined as:
A) The length of one cycle in mm
B) The number of cycles per second
C) The time for one cycle to occur
1
, D) The strength of the sound wave
Answer: B) The number of cycles per second
Rationale: Frequency (f) = 1/period, measured in Hertz (Hz).
Diagnostic ultrasound uses frequencies typically between 2–15
MHz .
3. Which transducer component converts electrical energy into
mechanical energy?
A) Matching layer
B) Damping material
C) Piezoelectric crystal
D) Acoustic lens
Answer: C) Piezoelectric crystal
Rationale: The piezoelectric crystal (typically PZT) converts
electrical potential into mechanical vibrations (sound) and vice
versa via the piezoelectric effect .
4. The focal zone (focal region) refers to the area where the
sound beam is:
A) Widest
B) Most divergent
2
, C) Narrowest
D) Least intense
Answer: C) Narrowest
Rationale: The focal zone is the region where the beam
diameter is smallest, providing the best lateral resolution .
5. Wavelength is _________ proportional to frequency.
A) Directly
B) Inversely
C) Exponentially
D) Not
Answer: B) Inversely
Rationale: μ = c/f. Higher frequency = shorter wavelength,
which improves axial resolution .
6. Axial resolution is determined primarily by:
A) Beam width
B) Pulse length (SPL)
C) Focal depth
D) Gain settings
3
, Answer: B) Pulse length (SPL)
Rationale: Axial resolution = ½ SPL. Shorter pulses (higher
frequency, fewer cycles) provide better axial resolution .
7. Which term describes the time from the start of one pulse to
the start of the next?
A) Pulse duration
B) Pulse repetition period (PRP)
C) Wavelength
D) Duty factor
Answer: B) Pulse repetition period (PRP)
Rationale: PRP is the time from the beginning of one pulse to the
beginning of the next. Pulse repetition frequency (PRF) = 1/PRP .
8. The Curie point refers to:
A) Optimal frequency for imaging
B) Temperature at which a crystal loses piezoelectric
properties
C) Maximum allowable MI
D) Speed of sound in bone
4
