To improve color frame rate, which adjustment should you make?

• A. Decrease pulse repetition frequency
• B. Increase packet size
• C. Decrease color box width
• D. Increase scan line density

Answer: (A)

The main idea being tested is how the timing of color data acquisition affects how many color frames you can display per second. Pulse repetition frequency sets how often color data pulses are produced for a frame. Lowering this rate reduces the time spent delivering color information for each frame, which can increase how many frames the system can assemble in a given second, thereby improving color frame rate. This is a direct way to speed up the refresh of color information, though it comes with trade-offs in velocity resolution and potential aliasing.

The other options change either how much data is sent or how densely data is sampled rather than how quickly frames are produced. For example, making packets larger tends to slow things down; narrowing the color box or increasing scan line density increases the amount of data per frame or frame-building work, which typically lowers frame rate.