/
Aircraft Fire Protection and Helicopter Systems
Save to my account
Sign up
Aircraft Fire Protection and Helicopter Systems
Aircraft Fire Protection and Helicopter Systems
Study
1
Question
Which components heat aircraft water supply lines and wastewater tanks?
0:23
Answer
Heater blankets and inline heaters.
2
Question
What type of water do aircraft wastewater tanks hold?
0:35
Answer
Gray water.
3
Question
Which control affects helicopter movement about the longitudinal axis?
0:50
Answer
Movement of the cyclic pitch control.
4
Question
Which document determines primary flight-control deflection for a reassembled imported aircraft?
1:04
Answer
The aircraft type certificate data sheet.
5
Question
What stability does wing dihedral contribute to in conventional airplanes?
1:21
Answer
Stability about the longitudinal axis.
6
Question
In forward horizontal flight, how does advancing-blade angle of attack compare with retreating-blade angle of attack?
1:38
Answer
The advancing-blade angle of attack is less than the retreating-blade angle of attack.
7
Question
Which control changes helicopter vertical flight?
1:53
Answer
Collective pitch changes.
8
Question
When are helicopter main rotor blades considered out of track?
2:01
Answer
When they do not cone by the same amount during rotation.
9
Question
How does a helicopter change direction during forward cruise flight?
2:10
Answer
By tilting the main rotor disc in the desired direction.
10
Question
What does main rotor blade tracking determine?
2:23
Answer
The relative position of the blades during rotation.
11
Question
Which two functions does an auxiliary tail rotor provide?
2:34
Answer
Torque compensation and directional control.
12
Question
Which control affects helicopter movement about the lateral axis?
2:50
Answer
Movement of the cyclic pitch control.
13
Question
What does a helicopter freewheeling unit do after engine failure?
3:04
Answer
It automatically disengages the rotor from the engine.
14
Question
When does a helicopter freewheeling unit disengage the engine from the main rotor?
3:21
Answer
When engine RPM is less than rotor RPM.
15
Question
How is directional control maintained in a hovering tail-rotor helicopter?
3:38
Answer
By varying the pitch of the tail-rotor blades.
16
Question
What happens when anti-torque thrust is reduced?
3:51
Answer
The tail pivots in the direction of torque rotation around the main rotor axis.
17
Question
Where should an external cargo release line of action pass?
4:05
Answer
Through the center of gravity at all times.
18
Question
What is the torque direction relative to rotor-blade rotation?
4:19
Answer
Torque acts in the opposite direction of rotor-blade rotation.
19
Question
Which agents are used for aircraft interior fires?
4:42
Answer
Water, carbon dioxide, dry chemical, and halogenated hydrocarbons.
20
Question
Which color does yellow silica gel turn in carbon-monoxide detectors?
4:56
Answer
Green.
21
Question
Where are portable carbon-monoxide detectors located in aircraft?
5:09
Answer
In the cabin and cockpit.
22
Question
Which maintenance action is included for fire-detection systems?
5:19
Answer
Replacement of damaged sensing elements.
23
Question
What activates a thermocouple fire-warning system?
5:29
Answer
A rate of temperature rise.
24
Question
What precaution applies when removing or installing discharge cartridges?
5:37
Answer
Ground or short the cartridge terminals.
25
Question
What must be checked before connecting discharge-cartridge terminals?
5:54
Answer
Use a voltmeter to verify that no voltage exists at the terminal connections.
26
Question
When may a carbon-dioxide extinguisher be used on an electrical fire?
6:08
Answer
When its horn is nonmetallic.
27
Question
Why does a thermocouple activate a fire-warning system when heated?
6:24
Answer
It generates a small current when heated.
28
Question
Which extinguishing agent is used for an aircraft brake fire?
6:40
Answer
Dry powder chemical.
29
Question
Which fire precautions apply when working on an oxygen system?
6:52
Answer
Display no-smoking placards, provide firefighting equipment, keep tools free of oil or grease, and avoid checking aircraft radio or electrical systems.
30
Question
What is the color code for aircraft fire-extinguisher lines?
7:17
Answer
Brown.