What does a torquemeter measure?

What does a torquemeter measure?

• A. The engine RPM
• B. Oil pressure in the engine
• C. The amount of torque being produced at the propeller shaft
• D. Fuel flow

Answer: (C)

The main idea is that a torquemeter measures the twisting force, or torque, being transmitted through the propeller shaft. This tells you how hard the engine is working and how much power is actually being delivered to the propeller. It’s not measuring rotational speed, lubrication pressure, or fuel usage. Engine RPM is about how fast the engine or shaft spins, oil pressure reflects the lubrication system, and fuel flow shows consumption; none of these directly indicate the torque on the shaft, which is what the torquemeter detects.

The main idea is that a torquemeter measures the twisting force, or torque, being transmitted through the propeller shaft. This tells you how hard the engine is working and how much power is actually being delivered to the propeller. It’s not measuring rotational speed, lubrication pressure, or fuel usage. Engine RPM is about how fast the engine or shaft spins, oil pressure reflects the lubrication system, and fuel flow shows consumption; none of these directly indicate the torque on the shaft, which is what the torquemeter detects.