Meteorology Questions and Answers Latest Version 100% Pass

Meteorology Questions and Answers Latest Version 100% Pass What causes wind to form? Differences in atmospheric pressure. Why does warm air rise? Warm air is less dense than cool air. What is the primary source of energy for weather patterns? The Sun. How does high humidity affect aircraft performance? It reduces engine efficiency and lift. What happens when a cold front moves in? The temperature drops, and storms may form. 2 Why do hurricanes lose strength over land? They are cut off from warm ocean water, their energy source. What is the main characteristic of a cumulonimbus cloud? It produces thunderstorms. How does temperature affect air density? Warmer air is less dense, while cooler air is denser. Why is clear air turbulence dangerous for pilots? It occurs without visible warning signs. What is the main cause of fog? Cooling of air to its dew point. How does altitude affect atmospheric pressure? Atmospheric pressure decreases with altitude. 3 What is wind shear? A sudden change in wind speed or direction. Why does ice form on aircraft surfaces during flight? Supercooled water droplets freeze upon contact. How does a low-pressure system affect weather? It brings clouds, precipitation, and sometimes storms. What type of weather is associated with high-pressure systems? Clear skies and calm conditions. Why does frost form on an aircraft parked overnight? Surface temperatures drop below freezing, causing moisture to crystallize. What causes turbulence in flight? Variations in wind speed, temperature, and atmospheric pressure. 4 Why do pilots avoid flying near cumulonimbus clouds? They contain severe turbulence, lightning, and strong updrafts. What does a falling barometer indicate? Worsening weather conditions. How does humidity affect takeoff performance? High humidity reduces engine power and lift.