The most frequent type of ground or surface-based temperature inversion is that which is produced by

(Refer to figure 8.) Determine the pressure altitude with an indicated altitude of 1,380 feet MSL with an altimeter setting of 28.22 at standard temperature.

(Refer to figure 52.) If more than one cruising altitude is intended, which should be entered in block 7 of the flight plan?

Upon encountering severe turbulence, which flight condition should the pilot attempt to maintain?