Question id 97 - Preflight Preparation - FAA PPL(A) - Private Pilot Airplane

An altitude of 500 feet above the highest obstacle within a horizontal radius of 1,000 feet
An altitude allowing, if a power unit fails, an emergency landing without undue hazard to persons or property on the surface
An altitude of 500 feet above the surface and no closer than 500 feet to any person, vessel, vehicle, or structure

Training tests and timed exam simulations FAA PPL(A) - Private Pilot Airplane