Mod 7-8-9-10 Flashcards
What are the two primary services that the APU provides to the operation of the aircraft?
electrical power and pneumatic air
What normally provides the power for APU operations?
Gas Turbine Engine
The CL-215 utilizes what for electrical power on the ground?
GPU & Battery
What precaution must be observed when servicing an APU ignition unit?
Wait for capacitors to discharge
This device provides the correct amount of fuel to the fuel nozzles for correct operation
Fuel Control Unit
What is used to start the APU?
DC electric motor
List four things that the cooling air is used for on the APU
Generator, Lubrication System, Accessories, Exhaust Shroud
Modern APUs operations are _________________ with the starting, running ad shutdown done by the APU Controller
automatic
These two inspections are commonly checked on APU’s
Oil Quantity, APU Hours
What is the maximum altitude that we can use APU bleed air for pressurization?
15,000
Which of the following has a door that’s closed when the APU is not in operation?
APU Intake
How many turbine stages are in the APU?
2
How many switches need to be pressed by the pilot to start the APU?
2
How does the pilot control the speed of the APU? Throttle lever Power Output Lever Ignition Transducer Control None of the above
non of above
How is the APU shutdown?
by deselecting the START/STOP switchlight by pressing the APU FIRE PUSH switchlight by pushing an APU emergency stop button
Where is information about the APU displayed to the pilot?
EICAS
The APU will automatically shutdown in flight if:
the APU speed is too high
What must a multi-tank, gravity fed fuel system for a carbureted engine have?
interconnected vents
What must a multi-tank, pump fed fuel system for a carbureted single-engine plane have?
redundant fuel pumps
Which engine type uses an accumulator tank in its fuel system?
fuel injected piston engine
The electric pump in a piston engine fuel system is used for
priming the engine starting the engine redundancy
The crossfeed valves in a fuel system is to allow:
any engine to use fuel from any tank
Large aircraft fuel systems employ ______________ refueling.
single point
what type of fuel tank Can develop leaks if left to dry out
bladder
fuel tank that Can be removed or installed through a small opening.
Bladder
fuel tank Hardest to repair
integral
fuel tank Also known as collapsible.
bladder
fuel thank that has the Best use of available volume
intergral
fuel tank Lightest weight.
integral
fuel tank that uses clips, snaps, or lacing to secure in airframe
bladder
fuel tank that is Difficult to remove and install
Rigid/Metal (welded or riveted)
fuel tank type that Requires large openings to remove
Rigid/Metal (welded or riveted)
The fuel cell in the Piper Navajo is secured to the structure using:
Lacing
All aircraft tanks can be easily defined as either rigid metal, bladder or integral.
false
Allows left engine to use fuel from right fuel tanks.
Crossfeed Valve
These remote valves are fast acting valves.
solenoid valves
A solenoid valve uses a _____________ valve internally.
poppet
Whittaker valves are also known as
gate valves slide valves motor driven valves
A _______________ is an example of a single acting manual pump
primer
This pump outputs fuel on each stroke of the piston
double acting pump
This pump outputs fuel on one stroke of the piston and pulls fuel into the pump on the other stroke
Pulsating pump diaphragm pump single-acting pump
This pump has no moving parts
ejector pump
Fuel strainers are normally located in the lowest point of the fuel system:
to collect water
The difference between a fuel filter and a fuel screen is:
filters have a mesh size of under 40 microns and a screen is over 40 microns
finger strainers are usually found in
fuel tanks
The cause of the British Airways Flight 38 crash was
ice forming in fuel/oil heater exchanger.
At what temperature is ice formation in jet fuel a problem?
Between -8 and -20 degrees Celsius
The pump image shown is in what mode?
Pressure relief
What are the four parameters that we typically monitor on aircraft fuel systems?
quantity, flow, temperature, pressure
Drip sticks are used to determine fuel quantity
on the ground
Float type fuel gauges can operate without ?
electric power
capacitance type fuel gauges measures?
measure the dielectric value of the fuel and air
What are three advantages of the capacitance-type fuel quantity indicators?
more accuratre, measures fuel mass, no moving parts
Volume flow measurement is done using a
a transmitter with a movable vane
Mass flow measurement is done using a
a transmitter with an impeller and turbine
the Cessna 185 fuel flow measurement is done using a
fuel pressure gauge
Fuel temperature indication is usually found on
any aircraft using jet fuel
how many fuel tanks are installed on the Boeing 767
3 main and 2 surge
The Boeing 767 uses what type of tank
fuel cells
Main fuel tanks on the Boeing 767 vent to
the surge tanks
The Boeing 767 is equipped with a fuel jettison system
true or false
true
Where is the fuel temperature taken from on the Boeing 767?
left tank
Visual fire detection is part of
smoke detection
When a lithium battery burns, its classed as a
Class D fire
When an electric wire burns, its classed as a
class C fire
An ionizing smoke detector uses
radioactive material
thermal switch is wired in series or parallel
wired in parallel
thermocouple is wired in parallel or series
series
A ______________ detects the light emitted from a flame
Flame detector
Your home should be equipped with a
Ionizing smoke detector
This heat detector uses two conductors in a metal tube
Kidde
These four indications are used to detect a fire on board an aircraft
smell, smoke, heat, flame
Dry chemical extinguishing agents are used in which kind of aircraft fire extinguishers?
Dry chemical is not used on aircraft
What three things should be checked on a fire extinguisher during an inspection
installation
hydrostatic test date
amount of charge
Water is used in which kind of aircraft fire extinguishers?
Lavatory fire extinguishers
If the (red/yellow)____disk is (missing/intact)
_____then the HRD bottle has been emptied through the pressure relief valve. If the (red/yellow)______disk is (missing/intact)
______then the HRD bottle has been discharged normally through the firing of the squib.
red,missing,yellow, intact
In an airline HRD system, each engine/APU has a dedicated HRD bottle.
true or false
false
What should be done to prevent the accidental firing of an HRD system squib when not installed?
Squib terminals should be grounded.
What conditions will cause the master warning light to illuminate and the fire bell to activate on the Boeing 767?
When a fire signal is detected from either of the engines, APU, Cargo Compartment or wheel wells
Where is the APU remote control panel located on the Boeing 767
On the nose gear
What type of heat sensor is used for the engines on the Boeing 767?
Kidde or Systron-Donner dual loop sensor
What are the overheat sensors used for on the Boeing 767
Bleed air pneumatic leaks
How many engine fire bottles are normally carried on the Boeing 767
2
How is a fire extinguished in the wheel well of a Boeing 767?
The main landing gear is lowered in flight
Most airplanes have some form of ice protection, even those flying Day VFR
yes
If an airplane is certified for IFR operations, then it is good to fly in known icing conditions.
true or false
false
What forces acting on a plane are negatively impacted by icing?
weight
drag
thrust
type of icing that is Roughest form of ice causing the most drag
rime ice
Heaviest type of ice
Glaze Ice
Hardest ice to clear off the plane
glaze ice
Easiest for of ice for de-ice boots to remove
rime ice
Can forms in clear conditions when temperatures are below freezing.
frost
(Anti-ice/De-ice)______systems are designed to remove ice after it has formed. (Anti-ice/De-ice)
______systems are designed to prevent the formation of ice from occurring.
de-ice / anti-ice
Ice doors on the King Air should
be used to prevent foreign object damage to the compressor section of the engine
Propeller de-ice boots are operated
using DC electric power
what kind of fuel distribution is this and what must have?
- Single Engine
- High Wing
- GravityFeed
–Some still use a fuel pump
•Interconnected Vent (Must have)
what kind of fuel distribution is ?
Pump Feed
Single Engine
–Electric and Engine Driven Pumps
- In parallel
- Electric pump for starting and backup
–Plunger Type
•Engine driven pump used when engine is
running
Diaphragm type
Carbureted Primer
what kind of fuel distribution is this ?
- Fuel Injected–With primer
- Single Engine–Electric and Engine Driven Pumps
- Vane type
- In parallel
- Electric pump for starting and backup
- Engine driven pump used when engine is
running
what kind of fuel distribution is this?
•Fuel Injected
–No primer
•Multi Engine
–Crossfeed
•Common fuel feed from each wing
What kind of fuel distribuition is this?
•Transport Aircraft•
Multi Engine
•Single Point Refueling
–Over wing refueling still available
•Crossfeed
–Any tank to any engine
•Dump
–To reduce weight allowing for emergency landing
•No Inflight Transfer
–A few large aircraft can transfer fuel in flight
–Many large aircraft can transfer fuel on the
ground
Fuel System Operational Checks
fillin,draining, supplying,transfering,crossfeding,dumping
fuel system ATA
ATA 28
what kind of Fuel Selector is?
that must be pushed off of a seat by cam act
poppet
what kind of selector valve is this
cone
what kind of selector valve is ?
Slide or gate:
Whittaker Valves
