Final answer:
The correct answer is Physics. Prior to a plane being pushed back or powering out, a pre-flight checklist has to be performed.
Step-by-step explanation:
The correct answer is option Physics. Prior to a plane being pushed back or powering out, a pre-flight checklist has to be performed.
This checklist ensures that all necessary systems and components of the aircraft are in proper working order before taking off. It includes tasks such as checking the fuel levels, engine health, control surfaces, and other important aspects of the airplane.
The correct answer is option 'walkaround inspection' has to be performed. Prior to a plane being pushed back or powering out, a critical safety procedure known as a walkaround inspection or pre-flight check must be carried out.
This involves a physical inspection of the aircraft by the pilot or ground crew to ensure that the plane is in suitable condition for flight, checking for any issues that might compromise safety.
This routine is as vital for aviation safety as the notable incident where Capt. Robert Pearson and First Officer Maurice Quintal skillfully glided a fuelless Boeing 767 to a safe landing at Gimli Station, showcasing the extraordinary measures pilots are trained to execute in emergency situations.