Gleim Unit 7 Questions with 100% Correct Answers | Latest Update | Verified

If the temperature/dewpoint spread is small and decreasing, and the temperature is 62 degrees F, what type weather is most likely to develop? - fog or low clouds How will frost on the wings of an airplane affect takeoff performance? - frost will disrupt the smooth airflow over the wing, adversely affecting its lift capability How does frost affect the lifting surfaces of an airplane on takeoff? - frost may prevent the airplane from becoming airborne at normal takeoff speed A pilot can expect a wind-shear zone in a temperature inversion whenever the wind speed at 2,000 to 4,000 feet above the surface is at least - 25 knots A stable air mass is most likely to have which characteristic? - poor surface visibility An almond or lens-shaped cloud which appears stationary, but which may contain winds of 50 knots or more, is referred to as - a lenticular cloud An increase in temperature with an altitude increase - is indication of an inversion At approximately what altitude above the surface would the pilot expect the base of cumuliform clouds if the surface air temperature is 82 degrees F and the dewpoint is 38 degrees F? - 10,000 feet AGL Clouds are divided into four families according to their - height range Clouds with extensive vertical development over mountainous terrain are a sign of - an unstable air mass Clouds, fog, or dew will always form when - water vapor condensesA nonfrontal, narrow band of active thunderstorms that often develop ahead of a cold front is known as a - squall line Convective circulation patterns associated with sea breezes are caused by - cool, dense air moving inland from over the water Crests of standing mountain waves may be marked by stationary, lens shaped clouds known as - standing lenticular clouds Cumulus clouds often indicate - possible turbulence During the life cycle of a thunderstorm, which stage is characterized predominately by downdrafts? - dissipating Every physical process of weather is accompanied by, or is the result of, a - heat exchange If an unstable air mass is forced upward, what type clouds can be expected? - clouds with considerable vertical development and associated turbulence 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? - wind-shear turbulence In which environment is aircraft structural ice most likely to have the highest accumulation rate? - freezing rain In which situation is advection fog most likely to form? - an air mass moving inland from the coast in winter Low-level turbulence can occur and icing can become hazardous in which type of fog? - steam fog One in-flight condition necessary for structural icing to form is - visible moistureOne of the most easily recognized discontinuities across a front is - a change in temperature One weather phenomenon which will always occur when flying across a front is a change in the - wind direction Possible mountain wave turbulence could be anticipated when winds of 40 knots or greater blow - across a mountain ridge, and the air is stable Steady precipitation preceding a front is an indication of - stratiform clouds with little or no turbulence Temperature and radiation variations over land with a clear sky typically lead to - minimum temperature occurring after sunrise The amount of water vapor which air can hold depends on the - air temperature The boundary between two different air masses is referred to as a - front The conditions necessary for the formation of cumulonimbus clouds are a lifting action and - unstable, moist air The destination airport has one runway, 08-26, and the wind is calm. The normal approach in calm wind is a left hand pattern to runway 08. There is no other traffic at the airport. A thunderstorm about 6 miles west is beginning its mature stage, and rain is starting to reach the ground. The pilot decides to - delay departure until the thunderstorm has dissipated