381. I21 PVT Which weather conditions should be expected beneath a low-level temperature inversion layer when the relative humidity is high? A) Smooth air, poor visibility, fog, haze, or low clouds. B) Light wind shear, poor visibility, haze, and light rain. C) Turbulent air, poor visibility, fog, low stratus type clouds, and showery precipitation. 382. I30 PVT Which weather phenomenon signals the beginning of the mature stage of a thunderstorm? A) The appearance of an anvil top. B) Precipitation beginning to fall. C) Maximum growth rate of the clouds. 383. I30 PVT The conditions necessary for the formation of cumulonimbus clouds are a lifting action and A) unstable air containing an excess of condensation nuclei. B) unstable, moist air. C) either stable or unstable air. 384. I30 PVT What conditions are necessary for the formation of thunderstorms? A) High humidity, lifting force, and unstable conditions. B) High humidity, high temperature, and cumulus clouds. C) Lifting force, moist air, and extensive cloud cover. 385. I30 PVT During the life cycle of a thunderstorm, which stage is characterized predominately by downdrafts? A) Cumulus. B) Dissipating. C) Mature. 386. I30 PVT Thunderstorms reach their greatest intensity during the A) mature stage. B) downdraft stage. C) cumulus stage. 387. I30 PVT Thunderstorms which generally produce the most intense hazard to aircraft are A) squall line thunderstorms. B) steady-state thunderstorms. C) warm front thunderstorms. 388. I30 PVT A nonfrontal, narrow band of active thunderstorms that often develop ahead of a cold front is a known as a A) prefrontal system. B) squall line. C) dry line. 389. I30 PVT 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) Precipitation static. B) Wind-shear turbulence. C) Steady rain. 390. I30 PVT 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. 391. I30 PVT What feature is normally associated with the cumulus stage of a thunderstorm? A) Roll cloud. B) Continuous updraft. C) Frequent lightning. 392. I36 PVT Which weather phenomenon is always associated with a thunderstorm? A) Lightning. B) Heavy rain. C) Hail. 393. I28 PVT 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. 394. I23 PVT The wind at 5,000 feet 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. 395. H953 PVT Where does wind shear occur? A) Only at higher altitudes. B) Only at lower altitudes. C) At all altitudes, in all directions. 396. H953 PVT 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. 397. I28 PVT 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. 398. H940 PVT 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. 399. H940 PVT (Refer to figures 33 and 34.) What is the maximum amount of baggage that can be carried when the airplane is loaded as follows? Front seat occupants 387 lb Rear seat occupants 293 lb Fuel 35 gal A) 45 pounds. B) 63 pounds. C) 220 pounds. 400. H940 PVT GIVEN: WEIGHT ARM MOMENT (LB) (IN) (LB-IN) Empty weight 1,495.0 101.4 151,593.0 Pilot and passengers 380.0 64.0 Fuel (30 gal usable no reserve) 96.0 The CG is located how far aft of datum? A) CG 92.44. B) CG 94.01. C) CG 119.8.

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