Fire Warning System 1-27

Question 1

The aircraft is equipped with a fire warning system that includes ___________ and responder assemblies.

Answer 1

dual sensor tubes

Question 2

The sensor tubes contain ________ and a _________ material

Answer 2

helium gas; hydrogen

charged core

Question 3

The hydrogen charged core responds to __________ heat caused by flames and/or escaping hot bleed air gases

Answer 3

highly localized

Question 4

Sensor heating expands the_______ , which in turn pressurizes a diaphragm
inside the responder.

Answer 4

helium gas

Question 5

If the diaphragm pressure
reaches or exceeds the preset fire detection point, an electrical circuit triggers the ________ annunciator and sounds the master warning horn.

Answer 5

red FIRE

Question 6

How many fire warning systems are there?

Answer 6

two

Question 7

When the test switch is set to ______, the _______of the
annunciator will illuminate; when set to ____, the _______ of
the annunciator will illuminate.

Answer 7

1; upper half

2; lower half

Question 8

Power for the #1 fire warning system is provided through a

circuit breaker, placarded FIRE 1, located on the________ circuit breaker

Answer 8

battery bus

Question 9

Power for the #2 system is provided through a circuit breaker, placarded FIRE 2, located on the _______ circuit breaker panel.

Answer 9

generator bus