11.14 Lights

Question 1

The left (port) Navigation light is what colour?

Answer 1

Red

Question 2

What colour is the starboard nav light

Answer 2

Green

Question 3

What colour nav light is located on the tail?

Answer 3

White

Question 4

What are multi bulb navigation lights?

Answer 4

Redundancy systems where the wing navs are wired in parallel and lit simultaneously.

Question 5

What angles do the nav lights disperse light in?

Answer 5

Wings 110, Tail 70 (140 total)

Question 6

Why should you not handle bulbs with bare hands?

Answer 6

Oil from skin = local heat spots.

Question 7

What are the 3 types of anti collision lights?

Answer 7

Rotary reflector, Rotating Bulb, Red Strobe type.

Question 8

What generates the high intensity flash of a Red strobe beacon?

Answer 8

Strobe unit located independently of the strobe light, providing high voltage to the strobe at required flash rate.

Question 9

What is important about the positioning of the white collision avoidance strobe lights?

Answer 9

Flash should be visible from any point around the aircraft in an area 30 degrees above and below the aircraft horizon.

Question 10

White collision strobe lights due to their intensity are switched on when?

Answer 10

Just before takeoff and switched off after exiting the runway on landing.

Question 11

Where are the power packs for strobes located?

Answer 11

In a water resistant area of the wing/aircraft

Question 12

What is important about handling strobe light circuits?

Answer 12

Power must be disconnected for a period of time before touching. generally 5 minutes.

Question 13

What are some precautions in regards to strobe lights?

Answer 13

1: Don’t look directly at operating strobe.
2: Don’t operate during refueling
3: Do not touch tube assembly.

Question 14

Landing lights generate a lot of heat and cooled by ram air in flight, what precautions must be taken on the ground?

Answer 14

Do not test for extended periods of time.

Question 15

If a quartz halogen bulb is handled how must it be cleaned?

Answer 15

Lead free spirit.

Question 16

Why are quartz halogen bulbs used in aircraft taxi lights, landing lights and flood lights?

Answer 16

Envelopes made of quartz withstand much higher temperatures than glass, hotter filament also produces more light.

Question 17

Where are the taxi lights positioned on the aircraft?

Answer 17

To the steering part of the nose landing gear.

Question 18

What precautions are there when operating lights?

Answer 18

Do not operate for more than 5 minutes, allow time off equal to time on.

Question 19

Which lighting is used for wing leading edge/ ice detection?

Answer 19

Sealed beam lamp

Question 20

Cabin lights are used to illuminate the main cabin of the aircraft, where is the control for this system and where does it draw power from?

Answer 20

Flight attendant station, Ground service bus.

Question 21

Cabin window lighting is run independently of other cabin lighting in most aircraft, how are these operated?

Answer 21

Fluorescent tubes are commonly used and most aircraft use a ballast unit instead of a fluro starter.

Question 22

What automatic control does the aircraft have over the advisory sign operation?

Answer 22

1: Landing gear down
2: Flap selection is made
3: Cabin decompression

Question 23

What are the 5 types of cockpit lighting?

Answer 23

1 Integral lighting
2 Post lights
3 Trans-illuminated panels
4 Floodlights
5 Utility or wander lights

Question 24

Integral lighting is used to illuminate?

Answer 24

Flight deck instruments, both pilots are able to control their own instrument lighting via a variable transformer.

Question 25

What is most commonly used lighting for aircraft panels? what are its advantages?

Answer 25

Trans-illuminated panels - Small amount of bulbs can illuminate a large area.

Question 26

How are the utility and wanderer lights powered? and what is their purpose?

Answer 26

Via the hot battery bus, used in emergency situations when you’ve lost internal lighting.

Question 27

What areas must emergency lighting mark?

Answer 27

All exits, cabin with enough internal light for crew to evacuate without outside light.

Question 28

In modern aircraft the emergency exit lights have an independent nickel cadmium battery pack, if the aircraft power fails the battery does what?

Answer 28

Automatically switch to power the emergency light, under normal conditions battery is charged from aircrafts DC system.

Question 29

During night operations what MUST be operative?

Answer 29

Emergency cabin lights.

Question 30

What is usually the main fault in light systems?

Answer 30

Bulb failure, always look for failed bulbs before looking deeper into the circuit.

Question 31

When checking light systems for intensity control what should be done?

Answer 31

Check through full intensity of range.

Question 32

Master warning and caution lights are labelled “attention getters” what are they used for?

Answer 32

Alert crew of failures or abnormalities.

Question 33

What does the amber caution light indicate?

Answer 33

Abnormality requiring corrective action, not a unsafe condition and can be reset.

Question 34

What does the Red warning light indicate?

Answer 34

Condition which may affect safety of aircraft, require immediate action, extinguish when condition is cleared.