ARDMS SPI EXAM 2 LATEST VERSIONS 2024 (VERSION A AND B) COMPLETE 200 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+

1 | P a g e ARDMS SPI EXAM 2 LATEST VERSIONS 2024 (VERSION A AND B) COMPLETE 200 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+ ARDMS SPI EXAM VERSION A If there is a small impedance mismatch between two mediums, what will result? A) There will be a small reflection B) There will be a large reflection C) All sound will transmit D) No sound will transmit - ANSWER- A) There will be a small reflection Which property of sound is measured in Rayls? A) Intensity B) Impedance C) Density D) Propagation speed - ANSWER- B) Impedance If sound energy is reduced by 50%, how many decibels were lost? A) 6 dB B) 3 dB 2 | P a g e C) 0 dB D) 10 dB - ANSWER- B) 3 dB To improve the quality of the motion during an electrocardiogram, which resolution should be improved? A) Transverse resolution B) Lateral resolution C) Axial resolution D) Temporal resolution - ANSWER- D) Temporal resolution Ultrasound frequency begins at: A) 2 Hz B) 20 Hz C) 20 Mhz D) 20 kHz - ANSWER- D) 20 kHz An increase in which property will increase the propagation speed? A) Period B) Bulk modulus C) Frequency D) Intensity - ANSWER- B) Bulk modulus (stiffness) A technician is using a 6 MHz transducer at a depth of 4cm, what is the attenuation coefficient? 3 | P a g e A) 1/2 dB/cm B) 8 dB/cm C) 6 dB/cm D) 3 dB/cm - ANSWER- D) 3 dB/cm Which reflector type requires a specific angle for optimal imaging? A) Diffuse B) Specular C) Rayleigh's scattering D) Scattering - ANSWER- B) Specular A difference between the incident angle and the transmitted angle, means which process has happened? A) Reflection B) Refraction C) Rarefaction D) Absorption - ANSWER- B) Refraction 17. What trade-off is made when there is an increase in the number of scan lines? A) Axial resolution for lateral resolution B) Penetration for axial resolution C) Temporal resolution for lateral resolution D) Temporal resolution for penetration - ANSWER- C) Temporal resolution for lateral resolution 4 | P a g e The number of pulses per second is called: A) PRF B) PD C) SPL D) PRP - ANSWER- A) PRF 19. What is the goal for better temporal resolution? A) Faster frame rate B) Shorter SPL C) Narrow beam width D) Decrease penetration - ANSWER- A) Faster frame rate If the depth is increased, what change will occur to the PRP? A) Decrease B) No change C) Increase D) Halved - ANSWER- C) Increase Frequency is reduced from 8MHz to 4MHz, what will be the result to the acoustic velocity? A) Increase B) No change 

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