AVSC 3400 UPDATED Questions and
CORRECT Answers
Temperature and dew point are reported in degree Fahrenheit. - CORRECT ANSWER✔✔-
False
What is the weather abbreviation for mist? - CORRECT ANSWER✔✔- BR
Forecast weather conditions can be categorized as prevailing or variable. - CORRECT
ANSWER✔✔- True
Prevailing visibility is given in the U.S. reports and is defined as the greatest distance objects
can be seen and identified throughout at least ______ degrees of the horizon circle. -
CORRECT ANSWER✔✔- 180
What term best describes a numeric code used by meteorologists to transfer information from
meteorological stations to mainframe computers? - CORRECT ANSWER✔✔- Synoptic
Code
Wind speed can be measured in which of the following units? - CORRECT ANSWER✔✔-
All of the above
ICAO has developed a system known as the World Area Forecast System. - CORRECT
ANSWER✔✔- True
What term best defines a weather report made by an aircraft in flight, like a PIREP? -
CORRECT ANSWER✔✔- Aircraft Observation
A special (SPECI) report is issued anytime weather conditions meet predetermined criteria. -
CORRECT ANSWER✔✔- True
The acquisition and interpretation of weather information is an essential part of the preflight
planning process. - CORRECT ANSWER✔✔- True
, What is the basic measuring instrument of the inertial navigation system? - CORRECT
ANSWER✔✔- Accelerometer
Two predictable errors associated with spinning mass gyrocompasses are real drift and
changes in magnetic variation. - CORRECT ANSWER✔✔- True
During the alignment period, the Inertial Reference Unit (IRU) computer has determined true
north by sensing the direction of the earth's ______. - CORRECT ANSWER✔✔- Rotation
An inertial accelerometer is capable of distinguishing between gravitational forces and actual
aircraft acceleration. - CORRECT ANSWER✔✔- False
The IRU microprocessors preform computations required for which of the following? -
CORRECT ANSWER✔✔- All of the above
A modern Inertial Navigation System is the only self-contained single source for all
navigation data. - CORRECT ANSWER✔✔- True
The Strapdown laser-gyro system utilizes inertial sensors that are fixed relative to the
structure. These sensors consist of two or more ring laser gyros and two or more
accelerometers. - CORRECT ANSWER✔✔- False
As long as the airplane flies in only one direction, one accelerometer is sufficient to
determine distance traveled from the starting position. - CORRECT ANSWER✔✔- True
What is the property of matter best described by Newton's first law of motion, which says "A
body continues in a state of rest, or uniform motion in a straight line, unless acted upon by
unequal external forces." - CORRECT ANSWER✔✔- inertia
The basic principles of an inertial accelerometer have changed drastically over the past
several years. - CORRECT ANSWER✔✔- False
CORRECT Answers
Temperature and dew point are reported in degree Fahrenheit. - CORRECT ANSWER✔✔-
False
What is the weather abbreviation for mist? - CORRECT ANSWER✔✔- BR
Forecast weather conditions can be categorized as prevailing or variable. - CORRECT
ANSWER✔✔- True
Prevailing visibility is given in the U.S. reports and is defined as the greatest distance objects
can be seen and identified throughout at least ______ degrees of the horizon circle. -
CORRECT ANSWER✔✔- 180
What term best describes a numeric code used by meteorologists to transfer information from
meteorological stations to mainframe computers? - CORRECT ANSWER✔✔- Synoptic
Code
Wind speed can be measured in which of the following units? - CORRECT ANSWER✔✔-
All of the above
ICAO has developed a system known as the World Area Forecast System. - CORRECT
ANSWER✔✔- True
What term best defines a weather report made by an aircraft in flight, like a PIREP? -
CORRECT ANSWER✔✔- Aircraft Observation
A special (SPECI) report is issued anytime weather conditions meet predetermined criteria. -
CORRECT ANSWER✔✔- True
The acquisition and interpretation of weather information is an essential part of the preflight
planning process. - CORRECT ANSWER✔✔- True
, What is the basic measuring instrument of the inertial navigation system? - CORRECT
ANSWER✔✔- Accelerometer
Two predictable errors associated with spinning mass gyrocompasses are real drift and
changes in magnetic variation. - CORRECT ANSWER✔✔- True
During the alignment period, the Inertial Reference Unit (IRU) computer has determined true
north by sensing the direction of the earth's ______. - CORRECT ANSWER✔✔- Rotation
An inertial accelerometer is capable of distinguishing between gravitational forces and actual
aircraft acceleration. - CORRECT ANSWER✔✔- False
The IRU microprocessors preform computations required for which of the following? -
CORRECT ANSWER✔✔- All of the above
A modern Inertial Navigation System is the only self-contained single source for all
navigation data. - CORRECT ANSWER✔✔- True
The Strapdown laser-gyro system utilizes inertial sensors that are fixed relative to the
structure. These sensors consist of two or more ring laser gyros and two or more
accelerometers. - CORRECT ANSWER✔✔- False
As long as the airplane flies in only one direction, one accelerometer is sufficient to
determine distance traveled from the starting position. - CORRECT ANSWER✔✔- True
What is the property of matter best described by Newton's first law of motion, which says "A
body continues in a state of rest, or uniform motion in a straight line, unless acted upon by
unequal external forces." - CORRECT ANSWER✔✔- inertia
The basic principles of an inertial accelerometer have changed drastically over the past
several years. - CORRECT ANSWER✔✔- False
