20 LP En Route IFR

Question 1

What en route chart is this?

Designed to provide aeronautical information for navigation during instrument flight below 18,000 feet MSL

Answer 1

Low altitude charts

Question 2

When are low and high altitude chart updated?

Answer 2

Every 56 days

Question 3

En route low altitude charts are used for navigation in instrument meteorological conditions on a _____flight plan

Answer 3

IFR

Question 4

On en route charts what does an L and an H stand for when naming charts?

Answer 4

Low altitude and high altitude

Question 5

How many different low altitude chart are there?

Answer 5

36

Question 6

On in route low altitude charts, MTR’s are listed in what order? Do IRs or VRs go first?
What info is listed next to the route number?

Answer 6

IRs are listed first in ascending numerical order followed by VRs in ascending numerical order.

Altitude range

Question 7

En route low altitude charts are for use below ______feet MSL

Answer 7

18,000

Question 8

On an in route low altitude chart what color depicts instrument approach procedure airports? What color does not?

Answer 8

Blue and green

Brown do not

Question 9

What is the runway length of airports on en route low altitude charts?

Answer 9

3000 feet or more

Question 10

What is a star indicate on in route ALT charts

Answer 10

Part time status, or availability on request

Question 11

Airports with the proved instrument approach procedures are depicted in what color?

Answer 11

Blue and green

Question 12

When included in the airport data, (A) means ___

Answer 12

Automatic terminal information service, ATIS, is available

Question 13

Compass roses on in route altitude charts are oriented to which North?

Answer 13

Magnetic north

Question 14

On en route low altitude charts a T is displayed to indicate a terminal class now NAVAID with a service volume of ______nautical miles and ____ feet

Answer 14

25 nautical miles, 12,000 feet

Question 15

What does an R indicate on the flight service stations on in route charts?

Answer 15

Receive only

Question 16

A frequency which is underlined with a communication box indicates that____.

Answer 16

There is no voice transmitted on that frequency

Question 17

A T depicted next to the facility name on in route altitude charts means____

Answer 17

The facility is a terminal class NAVAID

Question 18

Is the symbol indicating the availability of an ATIS broadcast found in a communication box?

Answer 18

No

Question 19

Lowest published altitude in effect between radio fixes on airways which meets obstacle clearance requirements for the entire route segment and assures acceptable navigational signal coverage only within 25 statute (22 nautical) Miles of a VOR

Answer 19

mOCA

Question 20

MOCA

Answer 20

Minimum obstruction clearance altitude

Question 21

MEA

Answer 21

Minimum En route altitude

Question 22

MAA

Answer 22

Maximum authorized altitude

Question 23

MRA

Answer 23

Minimum reception altitude

Question 24

MCA

Answer 24

Minimum crossing altitude

Question 25

Lowest published altitude between radio fixes which asure acceptable navigational signal coverage and meet obstacle clearance requirements between those fixes

Answer 25

MEA

Question 26

Published altitude representing the maximum usable altitude or flight level for a airspace structure, highest altitude at which adequate reception of NAVAID signals are issued

Answer 26

MAA

Question 27

Lowest altitude at which an intersection can be determined

Answer 27

MRA

Question 28

Lowest altitude at a certain fix at which an aircraft must cross when proceeding in the direction of a higher minimum in route IFR altitude

Answer 28

MCA