A. Water Vapor CondensesAs water vapor condenses or sublimates ~ above condensation nuclei, liquid or ice cream particles begin to grow. Some condensation nuclei have an affinity for water and can induce condensation or sublimation also when waiting is almost, however not completely, saturated.Answer (B) is incorrect since the presence of water vapor go not an outcome in clouds, fog, or dew unless condensation occurs. Prize (C) is incorrect because it is possible to have actually 100% humidity there is no the occurrence of condensation, i beg your pardon is essential for clouds, fog, or dew to form.
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What space the processes through which moisture is included to unsaturated air?A. Evaporation and also sublimation.B. Heating and condensation.C. Supersaturation and also evaporation.
A. Evaporation and sublimation.Evaporation is the changing of liquid water come invisible water vapor. Sublimation is the changing of solid water directly to the vapor phase or water vapor come ice, by happen the liquid state in each process.Answer (B) is incorrect since heating and also condensation alone carry out not include moisture to unsaturated air. Answer (C) is incorrect since "supersaturation" does no fit the context of the question.
Which conditions an outcome in the development of frost?A. The temperature the the collecting surface ar is in ~ or below freezing when tiny droplets of moisture loss on the surface.B. The temperature the the collecting surface is at or listed below the dewpoint the the adjacent air and also the dewpoint is listed below freezing.C. The temperature of the surrounding air is in ~ or listed below freezing when tiny drops the moisture loss on the collecting surface.
B. The temperature the the collecting surface ar is at or listed below the dewpoint the the adjacent air and also the dewpoint is below freezing.Frost develops in much the same way as dew. The difference is that the dew suggest of surrounding air need to be cooler than freezing.Answer (A) is incorrect due to the fact that ice will form in these situations. Prize (C) is incorrect due to the fact that ice will kind in these situations.
What feature is linked with a temperature inversion?A. A stable layer the air.B. An rough layer the air.C. Chinook winds on mountain slopes.
A. A secure layer that air.If the temperature boosts with altitude v a layer (an inversion), the great is stable and convection is suppressed.
What is the approximate base of the cumulus clouds if the surface air temperature at 1,000 feet MSL is 70°F and the dewpoint is 48°F?A. 4,000 feet MSL.B. 5,000 feet MSL.C. 6,000 feet MSL.
C. 6,000 feet MSL.When lifted, unsaturated waiting cools at around 5.4°F per 1,000 feet. The dew suggest cools at around 1°F every 1,000 feet. Therefore, the convergence the the temperature and dew allude lapse prices is 4.4°F every 1,000 feet. The base of a cloud (AGL) the is developed by upright currents deserve to be approximately calculated by separating the difference in between the surface temperature and the dew point by 4.4 and multiplying the rounded an outcome by 1,000.1. 70°F surface ar temperature - 48°F dew allude = 22°F2. 22 ÷ 4.4 = 53. 5 x 1,000 = 5,000 feet AGL4. 5,000 feet AGL + 1,000 feet ar elevation = 6,000 feet MSL
Steady precipitation coming before a prior is one indication ofA. Stratiform clouds through moderate turbulence.B. Cumuliform clouds with little or no turbulence.C. Stratiform clouds with little or no turbulence.
C. Stratiform clouds with small or no turbulence.Precipitation indigenous stratiform clouds is normally steady and also there is little or no turbulence.
When might hazardous wind shear it is in expected?A. Once stable air crosses a mountain obstacle where it tends to circulation in layers forming lenticular clouds.B. In locations of low-level temperature inversion, frontal zones, and clear air turbulence.C. Following frontal passage once stratocumulus clouds type indicating mechanically mixing.
B. In areas of low-level temperature inversion, frontal zones, and clear waiting turbulence.Hazardous wind shear can occur near the ground v either thunderstorms or a strong temperature inversion.Answer (A) is incorrect since turbulence have the right to be expected once stable air crosses a hill barrier. Prize (C) is incorrect due to the fact that turbulence have the right to be expected adhering to frontal passage as soon as stratocumulus clouds form, indicating mechanical mixing.
Why is frost thought about hazardous come flight?A. Frost transforms the basic aerodynamic form of the airfoils, in order to decreasing lift.B. Frost slow the air flow over the airfoils, in order to increasing manage effectiveness.C. Frost spoils the smooth circulation of air end the wings, thereby decreasing lifting capability.
C. Frost spoils the smooth circulation of air over the wings, in order to decreasing lifting capability.The roughness the the surface of frost spoils the smooth flow of air, for this reason causing a slowly of the airflow. This slowly of the air causes early air flow separation end the influenced airfoil, resulting in a lose of lift. Also a small amount the frost top top airfoils may prevent an plane from becoming airborne at typical takeoff speed.Answer (A) is incorrect because frost does not adjust the basic aerodynamic shape of the airfoil. Prize (B) is incorrect due to the fact that frost does not have actually an impact on the manage effectiveness.
The conditions necessary because that the formation of cumulonimbus clouds are a lifting activity andA. Turbulent air include an overfill of condensation nuclei.B. Unstable, moist air.C. Either steady or stormy air.
B. Unstable, moist air.For a cumulonimbus cloud or thunderstorm to form, the air must have:1. Sufficient water vapor,2. An unstable lapse rate, and3. One initial upward boost (lifting) to begin the storm process in motion.
During the life cycle of a thunderstorm, which phase is defined predominately by downdrafts? A. Cumulus.B. Dissipating.C. Mature.
B. Dissipating.Downdrafts characterize the dissipating phase of the thunderstorm cell and the storm dies rapidly.Answer (A) is incorrect because updrafts occur throughout the cumulus stage.Answer (C) is incorrect since both updrafts and downdrafts occur throughout the tires stage.
Thunderstorms reach their greatest intensity during theA. Maturation stage.B. Downdraft stage.C. Cumulus stage.
In which situation is advection fog most most likely to form? A. A warm, moist waiting mass ~ above the windward next of mountains.B. An air mass relocating inland indigenous the coastline in winter.C. A light breeze blowing cooler air the end to sea.
B. An air mass moving inland indigenous the coastline in winter.Advection fog creates when moist air move over chillier ground or water. It is most common along coastal areas. This fog typically forms offshore together a result of cold water, then is lugged inland by the wind.Answer (A) is incorrect because a warm, moist waiting mass on the windward side of hills will kind upslope fog and/or rain. Answer (C) is incorrect due to the fact that a light breeze blowing chillier air the end to sea will form steam fog.
Low-level turbulence can occur and also icing can become hazardous in which type of fog?A. Rain-induced fog.B. Upslope fog.C. Heavy steam fog.
C. Vapor fog.Steam fog forms in the winter once cold, dried air overcome from land locations over comparatively heat ocean waters. Low-level turbulence deserve to occur and also icing can become hazardous in a vapor fog.
The place of fronts and also pressure equipment (as of graph time) is best determined by introduce to aA. Surface evaluation Chart.B. Radar an introduction Chart.C. Weather depiction Chart.
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A. Surface analysis ChartThe position of fronts and also pressure solution is displayed on a Surface evaluation Weather graph by the usage of broken lines to stand for the fronts. A space between the heat or cold pips indicates frontogenesis -- the former is structure up. A dash between the warm or cold pips suggests frontolysis -- the front is dissipating.
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