IFR Altitudes

Question 1

DA/H

Answer 1

Decision Altitude/Height

Question 2

MAA

Answer 2

Maximum Authorized Altitude

Question 3

MCA

Answer 3

Maximum Crossing Altitude

Question 4

MDA/H

Answer 4

Minimum Descent Altitude/Height

Question 5

MEA

Answer 5

Minimum En route Altitude: The lowest published Altitude between radio fixes which assures acceptable navigational signal coverage and meets obstacle clearance

Question 6

MEA gap

Answer 6

Is noted on a map and shows zones in which navigational coverage is lost.

Question 7

MOCA

Answer 7

Minimum Obstacle Clearance Altitude

Question 8

MORA

Answer 8

Minimum Off Route Altitude

Question 9

Route MORA

Answer 9

Provides clearance within 10 NM of each side of the center line of track and a radius of 10 NM at the ends of airways

Question 10

Grid MORA

Answer 10

Provides obstruction clearance within a latitude / longitude grid block

Question 11

MRA

Answer 11

Minimum Reception Altitude

Question 12

MTA

Answer 12

Minimum Turning Altitude

Question 13

MVA

Answer 13

Minimum Vectoring Altitude

Question 14

OROCA

Answer 14

Off Route Obstruction Clearance Altitude - 1000ft buffer non mountains and 2000ft in mountainous