Clearances

When departing from an airport not served by a control tower, the issuance of a clearance void time indicates that:

Assume that you have received a clearance at a nontowered airport and a release with a void time. For some reason, you are not able to depart and not able to contact ATC. What happens after the void time passes?

ATC Clearances delivered by RCO or relayed through FSS to a pilot at a non-towered airport may contain additional departure instructions. Which instructions may ATC issue to a pilot departing a non-towered airport in a Class E surface area?

Obstacle Departure Procedures are predicated on achieving certain standard altitudes and climb rates. Select the correct responses to fill in the blanks. Unless specified otherwise, required obstacle clearance for all departures, including diverse, is based on the pilot crossing the departure end of the runway at least ______ above the departure end of runway elevation, climbing to ____ above the departure end of runway elevation before making the initial turn, and maintaining a minimum climb gradient of _____, unless required to level off by a crossing restriction, until the minimum IFR altitude.