Altimetry

Question 1

What is the definition of QFE?

Answer 1

atmospheric pressure at official aerodrome level. When QFE is set on the subscale of a pressure altimeter,the altimeter will read zero when the aircraft is on the ground at the station

Question 2

Define QNH

Answer 2

Atmospheric pressure I mean sea level. When set on the subscale of a pressure altimeter it will read aerodrome elevation when the aircraft is on the ground at the station.

Question 3

Define QNE

Answer 3

Height indicated on a pressure altimeter when the aircraft is on the ground at the airfield with a setting of 1013.25at hPa set on the subscale.

Question 4

Define height

Answer 4

The vertical distance of a level, point or object considered as a point measured from a specified datum.

Question 5

Define altitude

Answer 5

The vertical distance of a level, point or object considered as a point measured from mean sea level

Question 6

Define elevation

Answer 6

The vertical distance of a point or level on or affixed to the surface of the Earth measured from mean sealevel

Question 7

AD elevation is the elevation of the highest point on the landing area.

A separate threshold elevation is published if it is 7ft or more below AD elevation and for precision approach runways

Answer 7

True

Question 8

Define flight level

Answer 8

A surface of constant atmospheric pressure, which is related to a specific pressure datum (1013.25hPa) and is separated from other such surfaces by specific pressure intervals

Question 9

Vertical intervals from FL195 and below?

Answer 9

500ft intervals

Question 10

Vertical intervals above FL195

Answer 10

1,000ft intervals

Question 11

Vertical intervals above FL290

Answer 11

2000ft

RVSM a/c in RVSM airspace (FL290-410) 1,000ft

Question 12

Define transition Altitude

Answer 12

The altitude at or below which the vertical position of an aircraft is controlled by reference to altitudes transition altitude is located at a fixed level and published in aeronautical information publications

Question 13

Define transition level

Answer 13

The lowest flight level available for use of the transition altitude. Located at least a nominal 1000 feet above the transition altitude to permit the transition altitude and transition layer to be used concurrently in cruising flight with vertical separation insured

Question 14

The transition level is normally based on?

Answer 14

QNH of major AD in CAS

Outside CAS based on local AD QNH

Question 15

Define transition layer

Answer 15

The airspace between transition altitude and transition layer

At least 1000ft