Private Pilot Stage 2 Exam Questions All Solved

Private Pilot Stage 2 Exam Questions All Solved 1- How will frost on the wings of an airplane affect takeoff performance? A- Frost will disrupt the smooth flow of air over the wing, adversely affecting its lifting capability. B- Frost will change the camber of the wing, increasing its lifting capability. C- Frost will cause the airplane to become airborne with a higher angle of attack, decreasing the stall speed. - Answers -A 2- Every physical process of weather is accompanied by, or is the result of, a A- movement of air. B- pressure differential. C- heat exchange. - Answers -C 3- What causes variations in altimeter settings between weather reporting points? A- Unequal heating of the Earth's surface. B- Variation of terrain elevation. C- Coriolis force. - Answers -A 4- When there is a temperature inversion, you would expect to experience A- clouds with extensive vertical development above an inversion aloft. B- good visibility in the lower levels of the atmosphere and poor visibility above an inversion aloft. C- an increase in temperature as altitude increases. - Answers -C 5- The most frequent type of ground or surface-based temperature inversion is that which is produced by A- terrestrial radiation on a clear, relatively still night. B- warm air being lifted rapidly aloft in the vicinity of mountainous terrain. C- the movement of colder air under warm air, or the movement of warm air over cold air. - Answers -A 6- 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. - Answers -A 7- 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. - Answers -B 8- What is meant by the term 'dewpoint'? A- The temperature at which condensation and evaporation are equal. B- The temperature at which dew will always form. C- The temperature to which air must be cooled to become saturated. - Answers -C 9- The amount of water vapor which air can hold depends on the A- dewpoint. B- air temperature. C- stability of the air. - Answers -B 10- Clouds, fog, or dew will always form when A- water vapor condenses. B- water vapor is present. C- relative humidity reaches 100 percent. - Answers -A 11- What are the processes by which moisture is added to unsaturated air? A- Evaporation and sublimation. B- Heating and condensation. C- Supersaturation and evaporation. - Answers -A 12- Which conditions result in the formation of frost? A- The temperature of the collecting surface is at or below freezing when small droplets of moisture fall on the surface. B- The temperature of the collecting surface is at or below the dewpoint of the adjacent air and the dewpoint is below freezing. C- The temperature of the surrounding air is at or below freezing when small drops of moisture fall on the collecting surface. - Answers -B 13- The presence of ice pellets at the surface is evidence that there A- are thunderstorms in the area. B- has been cold frontal passage. C- is a temperature inversion with freezing rain at a higher altitude. - Answers -C 14- What measurement can be used to determine the stability of the atmosphere? A- Atmospheric pressure. B- Actual lapse rate. C- Surface temperature. - Answers -B 15- What would decrease the stability of an air mass? A- Warming from below. B- Cooling from below. C- Decrease in water vapor. - Answers -A 16- What is a characteristic of stable air? A- Stratiform clouds. B- Unlimited visibility. C- Cumulus clouds. - Answers -A 17- When warm, moist, stable air flows upslope, it A- produces stratus type clouds. B- causes showers and thunderstorms. C- develops convective turbulence. - Answers -A