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