Basic Aircrew Knowledge

Question 1

What is the ICAO ISA?

Answer 1

International Standard Atmosphere is 1013.25 mb at 15’C with a 1.98’C lapse rate per 1000ft up to 36,000ft

Question 2

what is altitude

Answer 2

vertical distance of an aircraft from mean sea level

Question 3

what is height

Answer 3

vertical distance from a specified datum (ground)

Question 4

range of UHF radio

Answer 4

works on Line of Sight 100 to 150 nautical miles dependent on height

Question 5

emergency frequencies

Answer 5

# 121.5 mhz Civil
# 243 mhz Military (guard)
# 406.025 mhz Cospas-Sarsat

Question 6

what is the definition of a flight Level

Answer 6

surface of constant atmospheric pressure which relates to a specific pressure datum (1013.25)

Question 7

what is the code for Aerodrome pressure

Answer 7

QFE

Question 8

what is the code for Aerodrome pressure adjusted to mean sea level

Answer 8

QNH

Question 9

what is a regional pressure setting

Answer 9

the lowest forecast

QNH for a specified area below transition altitude

Question 10

what is the standard pressure setting

Answer 10

SPS 1013.2mb above transition altitude

Question 11

what is elevation

Answer 11

the vertical distance between the surface of the Earth from sea level

Question 12

what is a flight Level

Answer 12

surfaces of constant atmospheric pressure separated by air pressure levels

Question 13

what is transition altitude

Answer 13

in the vicinity of an airfield aircraft are controlled by altitude in the UK this is usually 3000 feet

Question 14

what is a transition level

Answer 14

first flight Level above the transition altitude usually flight Level 035 in the UK

Question 15

what is controlled airspace

Answer 15

defines dimensions within which ATC service is provided

Question 16

Aerodrome traffic zones

Answer 16

MATZ military traffic zone

CATZ civilian traffic zone

Question 17

how is airspace organised

Answer 17

airspace is organised by vertical and lateral separation

Question 18

lateral separation of air space

Answer 18

divided into FIR flight information regions and UIR upper information regions

UK SPLIT INTO FOUR REGIONS

Question 19

vertical separation of air space

Answer 19

lower 3000 feet to FL95
middle FL100 to FL245
upper FL245+

Question 20

what is operational air traffic control

Answer 20

For military aircraft operating above FL100 controlled by London and Scottish

Gives flexibility and counters the threat of efficiency by air traffic control strikes

Question 21

What is RNAV?

Answer 21

Area navigation(RNAV) is a method of IFR navigation that allows an aircraft to choose any course within a network of navigation beacons rather than navigate directly to and from the beacons.

Question 22

What is an ILS approach?

Answer 22

Instrument Landing System (ILS)is defined as a precision runway approach aid based on two radio beams which together provide pilots with both vertical and horizontal guidance during an approach to land.