Ch. 2 - Fire/ECS system

Question 1

The No. 1 Engine handle and APU handle are pulled, the extinguisher will be used for the ________.

No. 2 Engine and APU handle are pulled, the extinguisher will be used for the ____.

Answer 1

Last handle pulled

Both the No. 2 Engine and the APU

Question 2

If there is no AC power the ________ must be used to discharge the extinguisher into the No.1 or APU compartment.

Answer 2

Reserve position

Question 3

The ___________ compartment has ________ without AC power.

Answer 3

The No. 2 engine

No fire extinguisher capability

Question 4

With ______ power and the activation of multiple levers the _______ may happen, leaving no_________.

Answer 4

AC power

Firing of both bottles

reserve capability

Question 5

A ____________ is hard-mounted to the airframe. When crash impact forces are detected the ________ will activate both fire bottles into the engines.

Answer 5

10g sensor

Battery Utility bus

Question 6

FWD fire bottle will go to the No. 2 Engine in the _______ position.

Answer 6

Reserve

Question 7

The AFT fire bottle will go to the No. 2 Engine if the switch is in the ______ position.

Answer 7

MAIN

Question 8

ECS operates with a range of what?

Answer 8

2-71 degrees C

Question 9

With ECS FLOW switch in NORM the max torque is reduced by what?

Fuel flow increases by?

Answer 9

4% torque per engine

8 lbs per hour

Question 10

With ECS temp in HOT and above 15* OAT Max torque is reduced by _____

Answer 10

5% torque per engine

Question 11

With ECS flow switch in HIGH the max torque is reduced by ______ and fuel flow increases by _______.

Answer 11

7% torque per engine

45 lbs per hour

Question 12

How do the fire sensors detect a fire?

Answer 12

They detect infrared radiation (fire), and when no blue light (sunlight) is detected they send a signal to the cockpit.

Question 13

What may cause a false fire indication?

Answer 13

Sunlight filtered through smoke and haze, or at sunrise and sunset.

Question 14

In the FIRE DETR TEST number 1 position, what is checked?

What is checked in the number 2 position?

Answer 14

The continuity of the three firewall-mounted detectors (No. 1 engine, No. 2 engine, and the APU) is checked.

The continuity of the two engine deck-mounted detectors.

Question 15

How is thermal discharge indicated on the fire bottles?

Answer 15

Loss of the red plastic disc on the left side of the aircraft.

Question 16

Using the APU to power the ECS will increase fuel consumption by what?

Answer 16

150lbs per hour

Question 17

ECS will automatically shut down under what conditions?

Answer 17

1. Engine C-PWR selected
2. No. 1 or No. 2 Starter is engaged
3. An ECS heating duct overtemp exists

Question 18

When AIR SOURCE ECS/START switch is placed to ENG, the ECS will shut down when:

Answer 18

1. A TGT of 851*C is reached
2. Either ENG ANTI-ICE switch is placed ON
3. The DE-ICE MASTER switch is placed to ON and ice is detected.
4. An ECS underpressure situation exists