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25 Cards in this Set
- Front
- Back
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What is the most common and persistent weather hazard encountered in aviation?
A. Low clouds B. Fog C. Haze and smoke |
Fog
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Why might the same turbulence be considered "light" by one aircraft and "severe" by another?
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The effect on the aircraft varies depending on the size and weight. Light/small aircraft are generally affected more severely
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What type of turbulence is caused by any obstruction placed in the path of wind?
A. Wake turbulence B. Obstruction turbulence C. Mechanical turbulence |
Mechanical turbulence
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What type of aviation hazard is considered cumulative in nature?
A. Low clouds and ceilings B. Icing C. Turbulence |
Icing
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A form of induction system icing would be
A. fuel freezing in the fuel lines between the tank and engine. B. water freezing in the radiator system. C. ice blocking air flow into an engine carburetor. |
ice blocking air flow into an engine carburetor
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What can contain almost ALL the phenomena that create hazards to aviation?
A. Thunderstorms B. Volcanic eruptions C. Widespread IFR |
Thunderstorms
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Intensity levels for icing are:
A. light, moderate, severe, extreme. B. trace, moderate, severe, extreme. C. trace, light, moderate, severe. |
trace, light, moderate, severe
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Precipitation begins in which stage of a thunderstorm?
A. Initial B. Mature C. Dissipating |
Mature
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Most tornadoes are a product of which type of thunderstorm?
A. Singlecell B. Multicell C. Supercell |
Supercell
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What is the difference between a funnel cloud and a tornado?
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Funnel clouds do not touch the ground, tornadoes do.
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What weather phenomenon encompasses almost every hazard to aviation?
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Thunderstorms
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A tropical storm is reclassified as a hurricane when the wind speeds exceed what?
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64 knots or 74 miles per hour
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What phenomenon is most likely to reduce visibility to near zero?
A. Blowing dust B. Blowing snow C. Blowing sand D. Haze |
Blowing snow
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What phenomenon rarely reduces visibility to less than 1 mile?
A. Fog B. Low clouds C. Rain D. Snow |
Rain
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Which characteristic is typical of clear ice?
A. Smooth B. Rough C. Easy to remove D. Granular |
Smooth
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In order for structural icing to form on an aircraft in flight, which of the following must occur?
A. The aircraft must be above 2,000 feet. B. The aircraft must have all de-icing equipment off. C. Air temperatures must be below freezing. D. The aircraft must be flying through visible moisture. |
The aircraft must be flying through visible moisture
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What type of turbulence is caused by very warm surface temperature and uneven heating of the Earth's surface?
A. Mechanical B. Wake C. Convective D. Clear air |
Convective
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Turbulence intensities are classified as
A. smooth, rough, moderate, and severe. B. light, moderate, severe, and extreme. C. chop, light, severe, and hazardous. D. smooth, rough, severe, and extreme. |
light, moderate, severe, and extreme
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A change in wind speed and/or direction in a short distance is
A. the jet stream. B. a frontal passage. C. convection. D. wind shear. |
wind shear
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A funnel-shaped cloud moving along the ground is a
A. funnel cloud. B. hurricane. C. tornado. D. waterspout. |
tornado
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A tropical cyclone in the Atlantic and eastern Pacific oceans is called a
A. typhoon. B. hurricane. C. disturbance. D. willy-willy. |
hurricane
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Turbulence which causes changes in altitude and/or attitude, but the aircraft remains in positive control at all times should be identified as
A. extreme. B. severe. C. moderate. D. light. |
moderate
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A wind shear produces the greatest hazards to aircraft
A. on the ground. B. in middle altitudes. C. in high altitudes. D. conducting takeoffs, approaches, and landings. |
conducting takeoffs, approaches, and landings
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The weather-related hazard to aircraft that can accelerate forward and downward speeds, causing aircraft to crash on departure or landing is called a
A. wind shear. B. tail wind. C. cross wind. D. microburst. |
microburst
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A large downburst producing an outflow of wind in excess of 2.5 miles horizontally, lasting 5 to 30 minutes with speeds to 134 MPH are called
A. wind shears. B. macrobursts. C. cyclonic wind. D. wake turbulence. |
macrobursts
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