AVIT 415 BLOCK 4 EXAM QUESTIONS WITH
100% CORRECT ANSWERS
What do IFR low enroute charts not show?
Topography, roads, cities/towns
At what altitude do high altitude charts begin?
airways 18,000 ft MSL and above
Even number airways run...
east/west
Odd number airways run...
North/south
How wide are victor airways?
8 nm
What happens to the width of a victor airway if further than 51 nm from nearest VOR?
width expands to include airspace 4.5 degrees angle from center of NAVAID
What is the total distance of the V430 between GFK and TVF?
41 NM (boxed number)
What are RNAV routes called above 18,000 ft?
Q routes
When must you report compulsory reporting points?
non-radar environment
When must you report noncompulsory reporting points?
When requested by ATC
Minimum enroute altitude
Lowest altitude between radio fixes which guarantees navigational reception and obstruction
clearance
What is an MEA gap?
Gap in navigational coverage along an MEA. Up to 65 miles
RNAV MEA
, This minimum altitude is depicted in the color blue with a G at the end. Ensures obstacle
clearance and communication reception
Minimum obstruction clearance altitude
guarantees obstacle clearance along the entire route (1000 or 2000 ft) and signal coverage within
22 nautical miles of NAVAID. Denoted by the * next to altitude
Maximum authorized altitude
Guarantees you will receive only one VOR. Prevents NAVAID interference
Off-route Obstruction Clearance Altitude (OROCA)
Provides obstruction clearance in designated grid. 1000 ft obstacle clearance in non-mountainous
regions and 2000 ft in mountainous regions.
Minimum reception altitude
Lowest altitude that ensures adequate reception from an off-route NAVAID used to identify a fix
Minimum crossing altitude
Must be at altitude before crossing the fix. Exists when the MEA changes to a higher value
Changeover point (COP)
Indicates when to switch NAVAIDs
What should you do if no COP?
switch at halfway point between NAVAIDs. switch when courses change
What is HIWAS?
Hazardous In-flight Weather Advisory Service-
continues broadcast of in-flight weather advisories including aviation weather warnings,
SIGMETs, Convective SIGMETS, CWAs, AIRMETS, and urgent PIREPs
Brown airports
No instrument approach
Green airports
at least one FAA instrument approach
Blue airports
at least one DOD instrument approach
What color is controlled airspace on a low enroute chart?
White
100% CORRECT ANSWERS
What do IFR low enroute charts not show?
Topography, roads, cities/towns
At what altitude do high altitude charts begin?
airways 18,000 ft MSL and above
Even number airways run...
east/west
Odd number airways run...
North/south
How wide are victor airways?
8 nm
What happens to the width of a victor airway if further than 51 nm from nearest VOR?
width expands to include airspace 4.5 degrees angle from center of NAVAID
What is the total distance of the V430 between GFK and TVF?
41 NM (boxed number)
What are RNAV routes called above 18,000 ft?
Q routes
When must you report compulsory reporting points?
non-radar environment
When must you report noncompulsory reporting points?
When requested by ATC
Minimum enroute altitude
Lowest altitude between radio fixes which guarantees navigational reception and obstruction
clearance
What is an MEA gap?
Gap in navigational coverage along an MEA. Up to 65 miles
RNAV MEA
, This minimum altitude is depicted in the color blue with a G at the end. Ensures obstacle
clearance and communication reception
Minimum obstruction clearance altitude
guarantees obstacle clearance along the entire route (1000 or 2000 ft) and signal coverage within
22 nautical miles of NAVAID. Denoted by the * next to altitude
Maximum authorized altitude
Guarantees you will receive only one VOR. Prevents NAVAID interference
Off-route Obstruction Clearance Altitude (OROCA)
Provides obstruction clearance in designated grid. 1000 ft obstacle clearance in non-mountainous
regions and 2000 ft in mountainous regions.
Minimum reception altitude
Lowest altitude that ensures adequate reception from an off-route NAVAID used to identify a fix
Minimum crossing altitude
Must be at altitude before crossing the fix. Exists when the MEA changes to a higher value
Changeover point (COP)
Indicates when to switch NAVAIDs
What should you do if no COP?
switch at halfway point between NAVAIDs. switch when courses change
What is HIWAS?
Hazardous In-flight Weather Advisory Service-
continues broadcast of in-flight weather advisories including aviation weather warnings,
SIGMETs, Convective SIGMETS, CWAs, AIRMETS, and urgent PIREPs
Brown airports
No instrument approach
Green airports
at least one FAA instrument approach
Blue airports
at least one DOD instrument approach
What color is controlled airspace on a low enroute chart?
White
