18 Questions
What unit is commonly used to measure wind speed by public weather services?
Kilometres per hour (km/h)
How is cloud amount indicated in aviation meteorology?
By the number of octas covered by a cloud
What is the equivalent of 1 Hectopascal in pressure measurement?
1 Millibar
In which country is Inches of mercury (inHg) commonly used for pressure indication?
United States
What does QFE stand for in aviation meteorology?
Pressure at the airfield elevation
What does QNH represent in aviation meteorology?
Altimeter setting to make it read altitude above mean sea level
What is the main concern regarding aircraft altimeter settings in aviation?
Variations in pressure references affecting altitude indications
Why is wake turbulence especially dangerous close to the ground?
Aircraft have limited maneuvering speed at low altitude
Which atmospheric condition can lead to ice accretion on aircraft structures?
Atmospheric icing conditions
What is the main factor governing the strength of wake turbulence vortex?
Weight, speed, and shape of the generating aircraft's wing
Which weather hazard presents the greatest risk to VFR pilots according to the text?
Reduced visibility and low cloud base
In aviation, what does QNH primarily refer to?
Atmospheric pressure at sea level
What is the definition of Flight Level in aviation?
The pressure altitude with the altimeter set to standard setting (1013) divided by 100
What is the International Standard Atmosphere (ISA) used for?
To simplify the atmosphere which varies and constantly changes
What is the definition of Transition Altitude (TA) in aviation?
The altitude at or below which the vertical position of an aircraft is controlled by reference to altitudes (QNH)
What is the meaning of QNH in aviation?
The altimeter setting that will cause the altimeter to read altitude above mean sea level
What is the definition of wind shear in aviation?
A difference in wind speed and direction over a relatively short distance
What is the definition of turbulence in aviation?
A micro scale meteorological phenomenon occurring over a very small distance
Test your knowledge on altitude in aviation, including transition altitude, flight level, and pressure altitude. Understand the standard setting for altimeters and the International Standard Atmosphere (ISA).
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