41-50

Question 1

An illuminated “PASS OXY ON” light on the aft overhead panel indicates:
a) The pass riders are on oxygen
b The passenger oxygen system has been activated
c All chemical oxygen generators have been activated

Answer 1

The passenger oxygen system has been activated

Question 2

The ___ high-stage valve modulates open to maintain proper pressure when 5th
low-stage pressure is insufficient (NG aircraft).
a) 7th
b) 9th
c) 10th

Answer 2

9th

Question 3

On the Cabin Pressurization Panel, what has occurred if both the amber AUTO
FAIL light and the green ALTN light are illuminated?
a The aircraft is pressurizing to the departure airport
b A single channel controller failure has occurred
c A dual channel controller failure has occurred

Answer 3

A single channel controller failure has occurred

Question 4

On the B737-800, the PACK light indicates:
a
a pack trip off and the valve has driven to full hot

b a pack trip off or failure of both primary and standby pack controls

c all answers are correct

Answer 4

a pack trip off or failure of both primary and standby pack controls

Question 5

What precools engine bleed air?
a) The respective PACK
b) A hydraulic heat exchanger
c) A precooler or heat exchanger

Answer 5

A precooler or heat exchanger

Question 6

Which scale on the CABIN Altimeter (ATL) / Differential Pressure (DIFF PRESS)
Indicator indicates the differential pressure between cabin and ambient in psi?
a) Inner Scale
b) Outer Scale
c) Lower Scale

Answer 6

Outer Scale

Question 7

At _____ cabin altitude the intermittent cabin altitude warning will sound.
a) 10,000 feet
b) 12,300 feet
c) 14,000 feet

Answer 7

10,000 feet

Question 8

What does the illumination of the BLEED TRIP OFF light indicate?
a Engine bleed air pressure is too low
b APU bleed air pressure is too low
c Engine bleed air temperature or pressure exceeds a predetermined limit

Answer 8

Engine bleed air temperature or pressure exceeds a predetermined limit

Question 9

__________ causes a WING-BODY OVERHEAT condition.
a) A fuel pump overheat
b) A bleed air duct leak
c) A hydraulic leak in the spar

Answer 9

A bleed air duct leak

Question 10

The Wing-Body Overheat (OVHT) TEST switch:
a) illuminates both WING-BODY OVERHEAT lights
b) tests WING-BODY OVERHEAT detector circuit
c) all answers are correct

Answer 10

all answers are correct