For Question 401 select "B", "C" or "D" ("A" is selected only as an example)!
401. If there is thunderstorm activity in the vicinity of an airport at which you plan to land, which hazardous atmospheric phenomenon might be expected on the landing approach?
A) None of the below. B) Precipitation static. C) Wind-shear turbulence. D) Steady rain.
402. Upon encountering severe turbulence, which flight condition should the pilot attempt to maintain?
A) Constant altitude and airspeed. B) Constant angle of attack. C) Level flight attitude. D) None of the above.
403. What feature is normally associated with the cumulus stage of a thunderstorm?
A) Roll cloud. B) Continuous updraft. C) Frequent lightning. D) None of the above.
404. Which weather phenomenon is always associated with a thunderstorm?
A) Lightning. B) Heavy rain. C) Hail. D) None of the above.
405. Possible mountain wave turbulence could be anticipated when winds of 40 knots or greater blow:
A) across a mountain ridge, and the air is stable. B) down a mountain valley, and the air is unstable. C) parallel to a mountain peak, and the air is stable. D) None of the above.
406. The wind at 5,000 feel AGL is southwesterly while the surface wind is southerly. This difference in direction is primarily due to:
A) stronger pressure gradient at higher altitudes. B) friction between the wind and the surface. C) stronger Coriolis force at the surface. D) None of the above.
407. Where does wind shear occur?
A) Only at higher altitudes. B) Only at lower altitudes. C) At all altitudes, in all directions. D) None of the above.
408. When may hazardous wind shear be expected?
A) When stable air crosses a mountain barrier where it tends to flow in layers forming lenticular clouds. B) In areas of low-level temperature inversion, frontal zones, and clear air turbulence. C) Following frontal passage when stratocumulus clouds form indicating mechanical mixing. D) None of the above.
409. A pilot can expect a wind-shear zone in a temperature inversion whenever the windspeed at 2,000 to 4,000 feet above the surface is at least:
A) 10 knots. B) 15 knots. C) 25 knots. D) None of the above.
410. Loading an airplane to the most aft CG will cause the airplane to be:
A) less stable at all speeds. B) less stable at slow speeds, but more stable at high speeds. C) less stable at high speeds, but more stable at low speeds. D) None of the above.