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 Wednesday, 6 November 2024, 7:20 PM State Finished Completed on Wednesday, 6 November 2024, 7:33 PM...

11/24/24, 11:52 AM WK 5: Knowledge Check (Edelman Ch 12-13): Attempt review | CBD College Started on Wednesday, 6 November 2024, 7:20 PM State Finished Completed on Wednesday, 6 November 2024, 7:33 PM Time taken 13 mins 24 secs Grade 10.00 out of 10.00 (100%) Question 1 Correct Mark 1.00 out of 1.00 In a curved array, the pulses travel ________. Select one: a. out in different  Because of the curved construction, the pulses travel out in different directions, producing a directions sector-type image. b. in straight lines c. faster in the center of the beam d. from an apex Because of the curved construction, the pulses travel out in different directions, producing a sector-type image. The correct answer is: out in different directions Question 2 Correct Mark 1.00 out of 1.00 Arrays have additional beams resulting from their multi-element structure called ________. Select one: a. speckle b. side lobes c. refraction d. grating  Array transducers demonstrate additional beams outside of the main beam resulting from their multi-element lobes structure. Array transducers demonstrate additional beams outside of the main beam resulting from their multi-element structure. The correct answer is: grating lobes Help https://my.cbd.edu/mod/quiz/review.php?attempt=2719082&cmid=642670 1/5 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 Contrast and temporal resolution relate more directly to the transducer. Select one: a. True b. False  Contrast and temporal resolution relate more directly to the instrument. Contrast and temporal resolution relate more directly to the instrument. The correct answer is: False Question 4 Correct Mark 1.00 out of 1.00 When the firing pattern of an array transducer steers the beam, we refer to this as Select one: Conventional steering Mechanical steering Electronic curvature Electronic slope  The correct answer is: Electronic slope Question 5 Correct Mark 1.00 out of 1.00 A single element transducer is focused: a. By the manufacturer  b. Cannot be focused c. By increasing power d. By the sonographer The correct answer is: By the manufacturer https://my.cbd.edu/mod/quiz/review.php?attempt=2719082&cmid=642670 2/5 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 Which of the following is not a beam steering technique for a mechanical scanhead? a. Rotating wheel b. Oscillating mirror c. Oscillating disc d. Phased beam  The correct answer is: Phased beam Question 7 Correct Mark 1.00 out of 1.00 The method by which each pulse originates from the same starting point is called a ________ image. Select one: a. sector  A sector image results when each pulse originates from the same starting point and subsequent pulses going out in different directions. b. linear c. convex d. none are correct A sector image results when each pulse originates from the same starting point and subsequent pulses going out in different directions. The correct answer is: sector https://my.cbd.edu/mod/quiz/review.php?attempt=2719082&cmid=642670 3/5 11/24/24, 11:52 AM WK 5: Knowledge Check (Edelman Ch 12-13): Attempt review | CBD College Question 8 Correct Mark 1.00 out of 1.00 Invasive transducers ________. Select one: a. decrease detail resolution b. utilize smaller  Recall frequency is inversely proportional to frequency. Higher frequency transducers used in invasive wavelengths transducers would have a smaller wavelength. c. increase imaging depth d. utilize lower frequencies Recall frequency is inversely proportional to frequency. Higher frequency transducers used in invasive transducers would have a smaller wavelength. The correct answer is: utilize smaller wavelengths Question 9 Correct Mark 1.00 out of 1.00 Multiple focal zones are advisable in which of the following scenarios Select one: an echocardiogram examination a thyroid ultrasound examination  an obstetric examination with an active fetus none of the above The correct answer is: a thyroid ultrasound examination https://my.cbd.edu/mod/quiz/review.php?attempt=2719082&cmid=642670 4/5 11/24/24, 11:52 AM WK 5: Knowledge Check (Edelman Ch 12-13): Attempt review | CBD College Question 10 Correct Mark 1.00 out of 1.00 With phasing, the transmitted beam is ________ and dynamically ________. Select one: a. focused; steered b. steered; focused  With phasing, the reception beam is steered and dynamically focused. c. variable; focused d. generated; received With phasing, the transmitted beam is steered and dynamically focused. The correct answer is: steered; focused https://my.cbd.edu/mod/quiz/review.php?attempt=2719082&cmid=642670 5/5