Which of the following is an example of a transducer? 

Which of the following is not a component of the time gain compensation (TGC) curve?

Which of the following produces false echoes that are occasionally seen in fluid-filled masses? 

Axial resolution is also known as all of the following except:

An echo that has undergone an attenuation of 3dB will have an intensity that is ______ than its initial intensity.

Beam steering is achieved in a linear phased array by

The piezoelectric effect is the 

The type of reverberation echo that usually results from a small gas bubble and appears as a high-amplitude echo occurring at regular intervals is called a

What does the arrow in the following image point to? 

What type of resolution is degraded in the presence of grating lobes and side lobes?