Which value is lower: maximum continuous EGT or maximum takeoff EGT for 5 minutes?

• A. 950 C
• B. 925 C
• C. 725 C
• D. 965 C

Answer: (B)

The concept here is that engine limits for EGT are defined for different durations. The continuous limit is set lower so the engine can run safely without accumulating damaging thermal stress during long operations, while the takeoff limit is higher to allow the extra thrust needed for a short takeoff. Therefore, the lower value corresponds to the maximum continuous EGT, not the takeoff limit for a short period.

In these options, 925 C is the lower figure. The takeoff EGT limit for five minutes would be higher (typically around 950–965 C), so 925 C represents the continuous-operation limit. The other numbers are either higher takeoff limits or are unrealistically low for these limits.