Which values are shown in large font on the MCDU during a procedure?

• A. FMC predicted values are shown in large font.
• B. System diagnostic values are shown in large font.
• C. Values entered as part of a procedure and manually entered restrictions are shown in large font.
• D. All takeoff speeds are shown in large font.

Answer: (C)

The thing being tested is how the MCDU emphasizes information you actively control during a procedure. The numbers that appear in large font are those you enter as part of the procedure and any restrictions you manually dial in. This visual emphasis helps you quickly verify critical inputs that will drive the flight path and need your confirmation, reducing the chance of oversight.

Why this is the best fit: when you’re programming a procedure, you’re setting constraints and values that the aircraft will follow—speed restrictions, altitudes, and leg entries are all data you’ve consciously entered. Highlighting these in large font makes them stand out on the screen so you can confirm they’re correct before executing the procedure.

In contrast, FMC predicted values come from the flight management computer as guidance and are not the data you’ve input to govern the procedure, so they aren’t given the large-font emphasis. System diagnostic values are for maintenance and troubleshooting, not routine flight operations. And while takeoff speeds are part of performance data, not all of them are shown in large font during a procedure; the emphasis is specifically on user-entered values and restrictions.