Which measurement is NOT displayed by the two analog meters?

Which measurement is NOT displayed by the two analog meters?

• A. Generator speed.
• B. Turbine Inlet Temperature.
• C. Turbine Outlet Temperature.
• D. Ambient pressure.

Answer: (C)

Two analog meters on a gas turbine control panel are chosen to give at-a-glance information about the most directly controllable and protective operating parameters. Generator speed matters because you must keep the rotor turning at the correct rate to match the electrical load and avoid overspeed or underspeed conditions. Turbine inlet temperature is shown because it directly limits blade temperatures and overall turbine health; staying within safe TIT ranges protects the turbine and helps maintain efficiency. Turbine outlet temperature isn’t displayed by those two meters because it’s typically monitored by a separate sensor or display used for performance analysis and exhaust monitoring, not for the immediate control decisions shown on the quick-read meters. Ambient pressure and other inputs may be monitored elsewhere, but the two meters specifically highlight speed and inlet temperature as the most critical, direct indicators for daily operation. Therefore the measurement not displayed by the two analog meters is turbine outlet temperature.

Two analog meters on a gas turbine control panel are chosen to give at-a-glance information about the most directly controllable and protective operating parameters. Generator speed matters because you must keep the rotor turning at the correct rate to match the electrical load and avoid overspeed or underspeed conditions. Turbine inlet temperature is shown because it directly limits blade temperatures and overall turbine health; staying within safe TIT ranges protects the turbine and helps maintain efficiency.

Turbine outlet temperature isn’t displayed by those two meters because it’s typically monitored by a separate sensor or display used for performance analysis and exhaust monitoring, not for the immediate control decisions shown on the quick-read meters. Ambient pressure and other inputs may be monitored elsewhere, but the two meters specifically highlight speed and inlet temperature as the most critical, direct indicators for daily operation. Therefore the measurement not displayed by the two analog meters is turbine outlet temperature.