Power Plant And Fuel System Practice Exam

Torque balance between the two drive paths in a VARTOMS system is monitored to prevent excess stress from one side carrying more load than the other. When the torque split becomes greater than about 15%, the system flags a VAR NR caution to alert the operator that the imbalance could cause mechanical wear or failure if not corrected. This warning is specific to torque distribution, not general system alerts or other parameters. The other indicators—Master Warning, Oil Pressure, and Fuel Low—point to different issues (a general alert, lubrication status, and fuel availability), so they aren’t used to signal an excessive torque split. When the VAR NR caution appears, operators check and rebalance loading, inspect drives or couplings for faults, and ensure the torque is evenly distributed to bring the split back into acceptable limits.