Which of the following defines the type of altitude used when maintaining FL 210?

(Refer to figure 143.) The heading on a remote indicating compass is 5° to the left of that desired. What action is required to move the desired heading under the heading reference?

To level off from a descent to a specific altitude, the pilot should lead the level off by approximately

Which instrument is considered primary for power as the airspeed reaches the desired value during change of airspeed in a level turn?

Prior to starting an engine, you should check the turn and slip indicator to determine if the