Wk 5 Knowledge Check (Edelman Ch 12-13) PDF

11/24/24, 11:52 AM WK 5: Knowledge Check (Edelman Ch 12-13): Attempt review | CBD College Started on Friday, 8 November 2024, 10:11 AM State Finished Completed on Friday, 8 November 2024, 10:15 AM T...

11/24/24, 11:52 AM WK 5: Knowledge Check (Edelman Ch 12-13): Attempt review | CBD College Started on Friday, 8 November 2024, 10:11 AM State Finished Completed on Friday, 8 November 2024, 10:15 AM Time taken 4 mins 45 secs Grade 10.00 out of 10.00 (100%) Question 1 Correct Mark 1.00 out of 1.00 Utilizing additional focal points causes the temporal resolution to __________. Select one: a. double b. improve c. degrade  Additional focal points will cause a decrease in the temporal resolution (frame rate). d. remain unchanged Additional focal points will cause a decrease in the temporal resolution (frame rate). The correct answer is: degrade Question 2 Correct Mark 1.00 out of 1.00 A transducer with a small footprint is being used. What is a disadvantage to using this type? a. It cannot be focused in the elevational direction b. The Q value is very high c. The near field lateral resolution is poor d. Resolution is degraded at large distances  e. The field of view in the far field is only one-quarter the diameter of the transducer The correct answer is: Resolution is degraded at large distances Help https://my.cbd.edu/mod/quiz/review.php?attempt=2721155&cmid=642670 1/4 11/24/24, 11:52 AM WK 5: Knowledge Check (Edelman Ch 12-13): Attempt review | CBD College Question 3 Correct Mark 1.00 out of 1.00 When voltage to the transducer elements is varied in order to reduce grating lobes, this is called Select one: demodulation compensation focusing apodization  The correct answer is: apodization Question 4 Correct Mark 1.00 out of 1.00 Which of the following array transducers steers the beam mechanically? Select one: an annular phased  a linear phased array a continuous wave a linear sequential array The correct answer is: an annular phased Question 5 Correct Mark 1.00 out of 1.00 If the depth of penetration is increased, the pulse repetition frequency (PRF) must be increased. Select one: a. True b. False  Increasing imaging depth decreases the PRF and increases the pulse repetition period (PRP). Increasing imaging depth decreases the PRF and increases the pulse repetition period (PRP). The correct answer is: False https://my.cbd.edu/mod/quiz/review.php?attempt=2721155&cmid=642670 2/4 11/24/24, 11:52 AM WK 5: Knowledge Check (Edelman Ch 12-13): Attempt review | CBD College Question 6 Correct Mark 1.00 out of 1.00 What type of image format will a curvilinear sequential array transducer have? Select one: blunted sector  trapezoid rectangular square The correct answer is: blunted sector Question 7 Correct Mark 1.00 out of 1.00 In relation to a mechanical transducer, if the imaging depth of a scan is 16 cm and there are 100 lines in the image, the number of pulses making up the scan is 1600. Select one: true false  may be true or false, depending on transducer diameter The correct answer is: false Question 8 Correct Mark 1.00 out of 1.00 If one of the crystals in a linear switched array transducer is damaged, how will this affect the ultrasound image on the display? Select one: there will be an area of horizontal dropout there will be an area of vertical dropout  no image will be present steering and focusing will be erratic The correct answer is: there will be an area of vertical dropout https://my.cbd.edu/mod/quiz/review.php?attempt=2721155&cmid=642670 3/4 11/24/24, 11:52 AM WK 5: Knowledge Check (Edelman Ch 12-13): Attempt review | CBD College Question 9 Correct Mark 1.00 out of 1.00 ___________ array is the combination of linear and phased array operations. Select one: a. Phased b. Convex c. Vector  A vector array transducer uses a combination of both linear and phased array operations. It presents a sector display with a non-zero width at the top. d. Interventional A vector array transducer uses a combination of both linear and phased array operations. It presents a sector display with a non-zero width at the top. The correct answer is: Vector Question 10 Correct Mark 1.00 out of 1.00 With a phased array transducer, there are many active elements which are being fired at almost the same time. Select one: True  False The correct answer is: True https://my.cbd.edu/mod/quiz/review.php?attempt=2721155&cmid=642670 4/4