Pneumatic System

Question 0

When do 10th SOVs close automatically

Answer 0

Over pressure or over temp

Question 1

How are 10th stage SOVs operated

Answer 1

Pneumatically operated and electrically controlled

Question 2

Check Valves

Answer 2

Prevent reverse flow from engine to engine

Question 3

14th stage SOVS

Answer 3

Pneumatically operated and electrically controlled

Question 4

Failure position of 14th stage SOVs

Answer 4

Open

Question 5

14th stage Isol valve fail position

Answer 5

Closed

Question 6

Bleed air leak detection

Answer 6

Wings
Fuselage
Pylons

Question 7

DUCT MON knob

Answer 7

TEST - simulates overheat and logic test of the 10th & 14th stage (checks for continuity of the loops)
LOOP A or B - tests for short circuits in the 10th stage dual loops

Question 8

DUCT FAIL Lights

Answer 8

Bleed air leak in associated duct

Question 9

FAIL LIGHT on APU LCV switch

Answer 9

LCV is open when the interlock has commands it closed

Question 10

Bleed valves that close when Fire Push switch is pressed

Answer 10

10th&14th SOVS

Question 11

DUCT FAIL lights on 14th stage

Answer 11

Bleed air leak in associated duct

Question 12

10th stage bleed air used for what

Answer 12

Air conditioning
Engine start
Pressurization
Avionics cooling