1. A obtained frequency this is decrease than what was transmitted, indicates what about the
glide?
A) Flow is transferring away from the sound supply
B) Low pace
C) Flow is transferring closer to the sound source
D) High velocity - ANS-A) Flow is transferring faraway from the sound source
1. A wide bandwidth and coffee great thing contribute to:
A) higher penetration.
B) better focusing.
C) higher axial decision.
D) higher body price. - ANS-C) higher axial decision.
1. An photograph is bright within the close to discipline but darker in the some distance area.
Which method is answerable for this effect?
A) Propagation velocity versions
B) Digital experiment conversion
C) Acoustic attenuation
D) Refraction - ANS-C) Acoustic attenuation
10. If sound strength is reduced by 50%, how many decibels had been lost?
A) 6 dB
B) 3 dB
C) zero dB
D) 10 dB - ANS-B) 3 dB
10. Round ride time and propagation velocity are essential when making what calculation?
A) Axial decision
B) Attenuation charge
C) Pulse repetition duration
D) Distance - ANS-D) Distance
10. The 3-D profile of the beam in a linear array is controlled by using:
A) acoustic lens.
B) transmit attention.
C) phasing.
D) beam former. - ANS-A) acoustic lens.
10. Which perspective is the maximum for secure wrist extension while scanning?
A) 20 ranges
B) 10 levels
C) 30 levels
D) forty degrees - ANS-A) 20 degrees
11. In the 10 mm test item, which of the subsequent machine controls can't be tested?
A) Dead sector
, B) Calipers
C) Dynamic range
D) Axial decision - ANS-C) Dynamic range
eleven. To enhance the nice of the movement during an electrocardiogram, which decision must
be progressed?
A) Transverse decision
B) Lateral decision
C) Axial resolution
D) Temporal resolution - ANS-D) Temporal decision
11. What trade to the photograph will result if the dynamic range is lowered?
A) Softer picture
B) Increase brightness
C) Increased comparison
D) Decreased assessment - ANS-C) Increased assessment
11. Which transducer employs electronic beam steerage to create a wide discipline of view?
A) Curvilinear
B) Mechanical transducer
C) Phased array
D) Linear sequential - ANS-C) Phased array
12. Dynamic focusing is utilized by:
A) all array transducers.
B) handiest phased arrays.
C) none.
D) most effective curved arrays. - ANS-A) all array transducers.
12. Ultrasound frequency starts at:
A) 2 Hz
B) 20 Hz
C) 20 Mhz
D) 20 kHz - ANS-D) 20 kHz
12. Which of the subsequent settings will have an effect on temporal resolution?
A) Persistence and photo compounding
B) Output electricity and TGC
C) Compression and general benefit
D) Dynamic variety and amplification - ANS-A) Persistence and photo compounding
12. Which generation is used to map tissue stiffness?
A) Elastography
B) Volume rendering
C) Volumetric acquisition
D) Myocardial motion - ANS-A) Elastography
thirteen. An growth wherein assets will increase the propagation velocity?
A) Period
B) Bulk modulus
C) Frequency
D) Intensity - ANS-B) Bulk modulus (stiffness)