1
Davies spi pulse-echo instrumentation questions and
answers all are correct 2025 graded A+
What system control determines the amount of amplification that occurs in the
receiver
A. Gain
B. Acoustic power output
C. Rectification
D. Pulse repetition frequency
E. Dynamic range - (answers)A. Gain
When you adjust the Alpha power control, you affect the following system
components
A.Pulser
B. Beam former
C. Scan converter
D. Memory
E.Receiver - (answers)A. Pulser
What system control do you adjust to equalize the differences in echo amplitude
received from similar structures situated at different depths
A. Dynamic range or compression
B. Rectification
C. Time gain compensation (TGC)
, 2
D. Pulse repetition frequency
E. Rejection - (answers)C. Time gain compensation
Electronic noise is reduced in the ultrasound system by this method.
A. Demodularization
B. Compensation
C. Rectification
D. Amplification
E. Rejection - (answers)E. Rejection
You have chosen to enlarge it ultrasound image with a read magnification. Which
of the following is not related to the read magnification
A. Pre-processing
B. Increase pixel size
C. Performance on a frozen image
D. Resolution loss
E. B and D only - (answers)A. Pre processing
What term below describes the rate at which the transmitter applies electronic
voltage pulses to the transducer
A. Period
B. Pulse repetition frequency
, 3
C. Depth gain compensation
D.Demodulation
E. Apodization - (answers)B. Pulse repetition frequency
Pulsing of the transmit sound wave is necessary for real time imaging because:
A. The transducer becomes too hot to handle if continuous sound waves are
emitted
B. The Crystal on the transducer will break under the stress of continuous
Emissions
C. The depth of the interface from which the echo originated can be determined
D. Lateral resolution is improved by the pulse transmission
E. Temporal resolution is improved by pulsed transmission - (answers)C. The
depth of the interface from which the echo originated can be determined
What receiver function is responsible for decreasing the difference between the
smallest in the largest receive signal amplitude's?
A. Amplification
B. Compensation
C. Compression
, 4
D. Demodulation
E. Rejection - (answers)C. Compression
D. What receiver function listed below is not operator adjustable?
A. Amplification
B. Compensation
C. Demodulation
D. Rejection
E. A and D - (answers)C. Demodulation
While performing a sonographic examination, you have performed both pre-
processing and post processing functions. Which of the following functions is post
processing
A. White zoom
B.Frequency change
C. Grayscale map assignment
D. Scan line density
E. Acoustic power output - (answers)C. Grayscale math assignment
Which of the following would be most helpful to enhance the contrast difference
between tissues having subtle variations of echogenicity's
A. Decreasing the acoustic power output
B. Decreasing the scan line density
Davies spi pulse-echo instrumentation questions and
answers all are correct 2025 graded A+
What system control determines the amount of amplification that occurs in the
receiver
A. Gain
B. Acoustic power output
C. Rectification
D. Pulse repetition frequency
E. Dynamic range - (answers)A. Gain
When you adjust the Alpha power control, you affect the following system
components
A.Pulser
B. Beam former
C. Scan converter
D. Memory
E.Receiver - (answers)A. Pulser
What system control do you adjust to equalize the differences in echo amplitude
received from similar structures situated at different depths
A. Dynamic range or compression
B. Rectification
C. Time gain compensation (TGC)
, 2
D. Pulse repetition frequency
E. Rejection - (answers)C. Time gain compensation
Electronic noise is reduced in the ultrasound system by this method.
A. Demodularization
B. Compensation
C. Rectification
D. Amplification
E. Rejection - (answers)E. Rejection
You have chosen to enlarge it ultrasound image with a read magnification. Which
of the following is not related to the read magnification
A. Pre-processing
B. Increase pixel size
C. Performance on a frozen image
D. Resolution loss
E. B and D only - (answers)A. Pre processing
What term below describes the rate at which the transmitter applies electronic
voltage pulses to the transducer
A. Period
B. Pulse repetition frequency
, 3
C. Depth gain compensation
D.Demodulation
E. Apodization - (answers)B. Pulse repetition frequency
Pulsing of the transmit sound wave is necessary for real time imaging because:
A. The transducer becomes too hot to handle if continuous sound waves are
emitted
B. The Crystal on the transducer will break under the stress of continuous
Emissions
C. The depth of the interface from which the echo originated can be determined
D. Lateral resolution is improved by the pulse transmission
E. Temporal resolution is improved by pulsed transmission - (answers)C. The
depth of the interface from which the echo originated can be determined
What receiver function is responsible for decreasing the difference between the
smallest in the largest receive signal amplitude's?
A. Amplification
B. Compensation
C. Compression
, 4
D. Demodulation
E. Rejection - (answers)C. Compression
D. What receiver function listed below is not operator adjustable?
A. Amplification
B. Compensation
C. Demodulation
D. Rejection
E. A and D - (answers)C. Demodulation
While performing a sonographic examination, you have performed both pre-
processing and post processing functions. Which of the following functions is post
processing
A. White zoom
B.Frequency change
C. Grayscale map assignment
D. Scan line density
E. Acoustic power output - (answers)C. Grayscale math assignment
Which of the following would be most helpful to enhance the contrast difference
between tissues having subtle variations of echogenicity's
A. Decreasing the acoustic power output
B. Decreasing the scan line density
