ARDMS SPI Exam Review TEST 11

October 14, 2017 By Rana Waqar Leave a Comment

1. The output gain of the pulser determines the ________ of the acoustic pulse.
- a. Frequency
- b. Intensity
- c. Duration
- d. Pulse repetition period
2. What is the receiver function that adjusts the image because of the darker appearance of reflectors in the far field as a result of attenuation?
- a. Compression
- b. Compensation
- c. Confirmation
- d. Condensation
3. Which of the following tasks is incorporated in the process of demodulation?
- a. Rejection
- b. Rectification
- c. Amplification
- d. Receiving
4. What is the smallest element in a digital picture called?
- a. The bit
- b. The pixel
- c. The byte
- d. The fractal
5. What is the name for the smallest amount of digital storage?
- a. The bit
- b. The pixel
- c. The byte
- d. The fractal
6. What receiver function converts the negative portion of the signal to positive?
- a. Compression
- b. Condensation
- c. Rectification
- d. Amplification
7. A video display that is limited to only black and white, with no other shades of gray, is called ______.
- a. Binary
- b. Monochrome
- c. Bistable
- d. Unichrome
8. In a standard cathode ray tube used to display ultrasound images, what are the charged particles that are emitted from a “gun” from the rear of the tube?
- a. Neutrons
- b. Photons
- c. Positrons
- d. Electrons
9. How does a cathode ray tube steer the charged particles emitted by the electron so that they sweep across the front screen?
- a. Phasing
- b. Mechanical steering
- c. Using a magnetic field
- d. Reflecting off of a mirror
10. Which of the following is a true statement?
- a. There are two frames in a field
- b. There are two fields in a frame
- c. One frame takes 1/60th of a second
- d. It takes 1/60th of a second to draw two fields

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