GPWS

Question 1

What are the 3 enhanced features of the GPWS? What pb controls the enhanced features?

Answer 1

Terrain Awareness Display

Terrain Clearance Floor

Runway Field Clearance Floor

TERR pb

Question 2

What is the difference between the basic and enhanced GPWS features?

Answer 2

Basic simply looks at RA while enhanced looks and predicts terrain ahead.

Question 3

What pb turns the basic functions off?

Answer 3

SYS pb

Question 4

Why would you push the the LDG FLAP 3pb?

Answer 4

When landing Flaps 3 instead of FULL. Disables the warning.

However, will warn when not at Flaps 3

Question 5

What mode will not allow you to display Terrain on the ND?

Answer 5

Plan Mode

Question 6

You get a Terrain Caution, how long until impact?

Answer 6

60 seconds

Question 7

You get a Terrain Caution, how long until impact?

Answer 7

30 seconds

Question 8

At what range will Terrain warnings and cautions be displayed?

Answer 8

<160NM

Question 9

What is the Terrain Clearance Floor (TCF)?

Answer 9

System provides min altitudes at various ranges from airports, if airplane is lower than set min altitude you will get a “TOO LOW TERRAIN” alert

Question 10

What is the difference between the Terrain Clearance Floor and the Runway Field Clearance Floor?

Answer 10

The Runway Field Clearance Floor is for high altitude runways significantly higher than surrounding terrain.

Question 11

What happens when you get a FAULT light on the TERR pb?

Answer 11

You have lost:

Terrain Display

Terrain Clearance Floor

Runway Field Clearance Floor

Question 12

What happens when you get a FAULT light on the SYS pb?

Answer 12

All basic GPWS functions are lost but Enhanced features remain