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WorksheetsFinal exam block 11
Total questions: 47
Worksheet time: 24mins
What is used to keep the fire extinguisher agent in the lavatory fire extinguisher bottle?
Solder
Copper
Plastic
What is used to hold the fire loops in the clamp, when Installing the fire loop?
grommets
nothing is needed
special tape
In a fire loop system, how should the grommets and loop fit in the clamps?
should fit snugly
should fit slightly lose
should fit very tight
The distance between clamps on straight runs when installing a fire loop is about?
8 to 10 inches
5 to 7 inches
9 to 11 inches
Grommets should be installed om the sensing element so both ends are centered on its clamp, and
The split end of the grommet should face the outside of the nearest bend
The split end of the grommet should face the inside of the farest bend
The split end of the grommet should face the outside of the farest bend
Which of the following indications occur in the cockpit if smoke is in the cargo compartment:
1. Master warning lights come on
2. Fire warning aural operates
3. A cargo fire warning message shows
4. Cargo fire warning light comes on
1,2,3,4
1,2,3
1,2,4
Class ______ type Fire extinguishers need to be present during the refuel/defuel processes
Class A
Class B
Class C
What is often the only way to determine if the fire bottle is empty or full?
Temperature indicator strip
Manufactures markings
Weighing the bottle
Sensing elements of a continuous-loop system should Not be inspected for the following?
Manufacture date
Abrasions caused by rubbing
Cracked or broken sections
Airplanes that have a passenger capacity of_
monitors the lavatories for smoke
or more are equipped with a smoke detector system that?
20
30
10
In a class D fire zone what type of airflow should be expected?
Relatively low airflow
Very little or no airflow
Heavy airflow
Which type of detector contains a photoelectric cell that detects light refracted by smoke particles?
Ionization Refraction type
Optical sensors that detect radiation
Light Refraction
Pneumatic Continuous-Lo Systems are also known by their manufactures name such as-?
Dupont Safety systems
Lindberg, Meggitt Safety Systems
Grumman detection
In a Pneumatic pressure loop detector system, what are the two gases used to charge the system?
Hydrogen-core, Argon gas
Helium Gas, Hydrogen-Charged core
Helium, Nitrogen
material
What type of detector is often found on reciprocating engine aircraft with exhaust shroud heaters and or aircraft equipped with combustion heaters?
Flame Detectors
Carbon Monoxide
Hydrocarbon detectors
What type of fire extinguisher is the most common in cockpit & cabin interiors?
Co2
Halon 1211 and Water
Dry powders & Co2
High rate of discharge (HRD) systems use to seconds
to deliver a quantity of extinguishing agent in?
Nozzles, 3 to 4
Perforated tube 1/2 to 2
Open-end tubes 1 to 2
What is the most common extinguishing agent still used today and has a low toxicity and is noncorrosive?
Co2
Halon 1301
Halon 1211
Fire extinguisher Containers have what component installed in the outlet of the discharge valve assembly?
Shuttle valve
Cartridge (squib)
Emergancy release valve
What is the purpose of the Temperature/pressure sensitive safety relief diaphram on a fire extinguishing container (HRD) bottle?
Prevents exceeding container test pressures in the event of exposure to
Prevents over service during maintenance procedures.
excessive temperatures
Regulates safe altitude operations
What type of indicator would you have for pressure in an extinguishing container?
Visual from flight deck of aircraft
A visual & electrical signal if pressure is lost
Electrical indication only
What color indicator would you have for a Thermal discharge indicator on a fire detection system?
Red
Green
Yellow
Where are the Fire Switches located for the APU typically installed?
Right side panel
lower center console
Overhead center panel
Transport aircraft need to have the following provisions for each cargo or baggage compartment?
Must have the means to allow the crew to check in flight the function of each detector circuit, an audible tone for each compartment, provide visual indication, Ability to self extinguish upon detection
Detection system provide visual indication to the crew, must be capable of detecting a fire at a temp below the structural integrity of the airplane, Must have the means to allow the crew to check in flight the function of each detector circuit
The system must provide a visual indication to the flight crew within 1 minute after the start of a fire
A Class A cargo or baggage compartment is one in which____________
The ground crew would only have access during engine run ups & APU starts
The presence of a fire would be easily discovered by a crewmember while at his or her station
A built in fire extinguishing or suppression system controllable from the cockpit
A Class E cargo compartment is one on airplanes used only for the____________
Carriage of cargo and in which the controls for shutting off the ventilation airflow to, or within, the compartment are accessible to the flight crew in the crew compartment
Does not require crew emergency exits that are accessible under any cargo loading condition
Area in which crewmembers that cannot access during flights and are primarly used in the APU compartment
What occours when the Fire switch is activated?
The APU engauges and the main fuel control shuts off, Extinguishing system is activated
Extinguishing system is activated, main fuel crossfeed automatically engauges
The engine stops because the fuel control shuts off, engine isolated from the aircraft systems, Extinguishing system is activated
What are the cargo compartment classifications?
Class A,,B,C,E
A,B,C
Class A,B,C,D
The location of the APU fire switches are found where?
Copilot center panel
Aircraft Commander center panel
Cockpit center overhead panel
How may types of cargo compartment extinguishing systems are there?
Two: A dump system & metering
Two: Metering system & complete
system
dispersal system
Two: Automatic distribution & Dump system
Where is the smoke detector located inside the lavatory?
Highest part of back wall
Ceiling
Bulk head next to mirror & exit door
The lavatory smoke detector is powered by the?
400 Hz AC right/main AC bus
28-volt DC left/right main DC bus
12-volt DC right/AC left main bus
The squib is activated and or operated by ______
cable operated activation
An electrical signal
Manual switch
Kinks and bends in the detection system sensing element can cause a wire to short intermittently to the outer tubing. What would be the steps taken to find and correct this situation?
Checking the sending element with an ohm meter while tapping the element
Replace the detection system component
Using a Megger to confirm a broken wire in the loop
How many vents are required per tank?
1
2
3
What temperature range is most likely to have carb icing?
Below freezing
Above 70 degrees f
Between 30-40 degrees f
What is the standard that the engine continues to run when saturated with water per gallon?
0 degrees C and 29.92 hg
80 degrees F and 0.75 cubic centimeters
Zero, water can not be in fuel
What 14 CFR part outlines the jurisdiction of the EPA?
21
34
91
135
Why are jet fuels more susceptible to water contamination than aviation gasoline?
Jet fuel is lighter than gasoline; therefore, water is more easily suspended.
Jet fuel has a higher viscosity than gasoline.
Condensation is greater because of the higher volatility of jet fuels.
Regarding the following two statements which one(s) are true?
1. A fuel pressure relief valve is required on an aircraft positive displacement fuel pump.
2. A fuel pressure relief valve is required on an aircraft centrifugal fuel boost pump.
Only No. 1 is true
Both No. 1 & 2 are true
Only No. 2 is true
Which of the following could result if microbial growth exists in a jet fuel tank and is not corrected?
1. Interference with fuel flow
2. Interference with fuel quantity indicators
3. Engine seizure
4. Electrolytic corrosive action in metal tank
5. Lower grade rating of the fuel
6. Electrolytic corrosive action in rubber tank
1, 2, & 4
2, 3 & 5
1, 5 & 6
Regarding the following two statements which one(s) are true?
1. If aviation gasoline vaporizes too readily, fuel lines may become filled with vapor and cause increased fuel flow.
2. A measure of gasoline’s tendency vapor lock is obtained from the Reid vapor pressure test.
Only No. 2 is true
Both No. 1 & No. 2 are true
Neither No. 1 nor No. 2 are true.
What is the recommended practice for cleaning a fuel tank before welding?
Purge the tank with air
Steam clean the tank interior
Flush the inside of the tank with clean water
Drop in a lighter and burn off excess fuel vapor
Drop in a lighter and burn off excess fuel vapor
area less than 1/4"
area less than 3/4"
area less than 3"
It is safe to fuel an aircraft in a hangar as long as the hangar doors are open all the way.
True
False
What prevents Jet Fuel from being added to a piston aircraft?
Nozzle to small
Square nozzle for round hole
Nozzle to big
When replacing fuel gaskets, seals, and packings, how do you know they are still useable
Within the service life stamped on the package
The package is sealed
There is no evidence of deteriation
