Free ARDMS SPI Exam Dumps Questions & Answers

What is the result of increased transducer damping?

• A.  Increased sensitivity
• B.  Longer pulse length
• C.  Narrow beam width
• D.  Improved axial resolution

How is variable transmit focus with a linear phased array accomplished?

• A.  Adjusting relative delay times of the array elements
• B.  Mechanically rotate array elements
• C.  Modifying the impedance of the acoustic lens
• D.  Reshaping the matching layers

Which index is related to the likelihood of cavitation?

• A.  Mechanical
• B.  Acoustical output
• C.  Thermal
• D.  Temporal

Which adjustment was made to change image A to produce image B?

• A.  Decreased overall gain
• B.  Increased overall gain
• C.  Decreased dynamic range
• D.  Increased dynamic range

Which factor improves axial resolution?

• A.  Decreased compression
• B.  Lower frequency transducer
• C.  Narrower beamwidth
• D.  Shorter spatial pulse length