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WorksheetsThe finale
Total questions: 80
Worksheet time: 40mins
If the right wing of the monocoque is improperly rigged to a greater angle of incidence than designated in manufacturer’s specifications, it will cause the
Airplane to be off balance both laterally and directionally
Right wing to have both an increased lift and decreased drag
Airplane to pitch and roll about the lateral axis
Right wing will have decreased in lift and drag
Which of the below will not develop pitching moment?
A symmetrical airfoil set at positive AOA
A camber airfoil that is not developing lift
A cambered airfoil set a zero AOA
A camber airfoil that is producing lift
An airplane is making a constant airspeed, level turn. Its velocity
Is increasing
Is decreasing
Remains the same
Is changing
Airfoil camber is defined as
Maximum thickness of airfoil
The maximum distance between the camber line and the chord line
The percentage of the mean camber line
Ratio of the thickness to chord
The maximum distance between the mean camber line and the chord line is the
Mean camber
Mean camber line
Maximum camber
Maximum chord
To compensate for nose down tendency the
Flaps are set as positive AOA
Elevators are set at positive AOA
Elevators are set at negative AOA
Horizontal stabilizers are set at negative AOA
The coefficient of drag can be defined as
The ratio of lift forces to drag forces
A measure of the efficiency of the airplane
The ratio of drag forces to lift forces
The ratio of drag pressure to dynamic pressure
The speed of sound depends on
The air density alone
Pressure and density
Temperature alone
Density, temperature and viscosity
Induced drag results from the lift vector being tilted to the rear. This is caused by
The wing tip vortices causes downwash behind the wing
The relative wind behind the wing is pushed downwards
The local relative wind at the AC is depressed
All choices are mentioned here
Which control surface produces large amounts of drag without affecting other lift producing surfaces of the aircraft?
Spoilers
Speed brakes
Slats
Flaps
The elevator is commonly installed onto the
Leading edge of the horizontal stabilizer
Trailing edge of the horizontal stabilizer
Tip of the main plane
Inboard of the main plane
In longitudinal control
The elevator controls pitch about the lateral axis
The aileron control roll about the longitudinal axis
The rudder control direction about the yaw axis
The aileron control pitch about the lateral axis
Calculate the pressure if 16lbs forces is being applied to a piston in the cylinder given the area of the piston is 4 inches^2
32 psi
64 psi
16 psi
4 psi
Mil-H-83282 belongs to what type of fluid and what is the color
Mineral, violet
Mineral, red
Synthetic, violet
Synthetic, red
The disadvantage of using gas to transmit forces is that
It is compressible
It is lighter
It takes up more space
It is flammable
What is the purpose of pressurizing the reservoir?
Prevent foaming and evaporation of fluid
Ensure positive supply of fluid at high altitude only
Allow expansion of fluid under high temperature
In case of pump failure, the pressure in the reservoir will supply the fluid pressure
The advantage of a variable displacement pump is that
Direction of pump rotation can vary
Flow of hydraulic fluid can be regulated
Various type of pump can be installed in a same hydraulic system
It is interchangeable between aircraft types
If there is excessive pressure in reservoir, where does it relief to?
Hydraulic fluid relief through the reservoir relief valve to the ambient
Hydraulic fluid relief through manual bleed valve to the ambient
Hydraulic fluid relief through system relief valve back to the reservoir
Hydraulic fluid relief through manual bleed valve back to reservoir
Excessive fluid pressure relieved by system relief valve is diverted to
Supply line
Return line
Atmosphere
Bypass valve
Excessive air load on the wing flap is diverted to return line by
Thermal relief valve
Back-blow relief valve
System relief valve
Check valve
Which is not a correct servicing procedure
Flush out the new pipelines with different types of hydraulic fluids
Blank off disconnected pipelines
Make sure all components are cleaned before installation
Use a proper tray to hold the components
If the caution light in the cockpit remains on, what is the causes
Insufficient fluid in reservoir
System pressure too high
Air in the system
Pressure switch stuck open
Choose a most suitable actuator to operate 2 mechanisms simultaneously
Single action
3-port
Double action
Triple action
Fitting is used to
Close a hole in a line
Link up the lines between the hydraulic components
Join the return lines to the reservoir
Pressurize the joint between pipelines
What is the effect of low humidity in the aircraft
Fog appear in cabin
Decrease cabin temperature
Prevents freezing of aircraft parts
Depressurization in the cabin
Where does the air conditioning system begin
At the flow control valve
At the temperature control valve
At aircon unit outlet
When the air enters the cabin
In the cabin pressurization system, which component controls the rate of discharge of the cabin air into the atmosphere
Cold air unit
Flow control valve
Cabin pressure regulator
Temperature control valve
Which components control the chamber pressure up to 10,000 feet
The outflow valve and differential bellow
Differential bellow and needle valve
Cabin air bleed orifice and filter
Isobaric bellow and needle valve
Climbing from 10,000 feet to 30,000 feet the pressure differential in a military aircraft will
Be maintained constant
Increase with altitude
Decrease with altitude
Increase or decrease depending on pilot selection
Which of the following is correct about the constant differential pressure
When the maximum differential pressure is reached, the cabin altitude increases at same rate as aircraft altitude
When the maximum differential pressure is reached, the cabin altitude decreases at same rate as aircraft altitude
When the aircraft altitude increases, the cabin altitude decreases
When the aircraft altitude decreases, the cabin altitude increases
Which one of the following is NOT an effect of ice formation on aircraft
Hampers pilot’s vision
Increases the drag on aircraft
Causes stalling of the engine compressor
Causes failure of cabin pressurization and air conditioning of the aircraft
Which of the following methods may be used to prevent or control ice formation on aircraft
Using fluid spray
Using vortex generator
Heating by thermocouples
Using ram air to blow away the ice
In the anti-icing system, what is the principle used in the thermal type
Hot air
De-icing fluid
Inflatable boots
Electrical elements
Which of the following is the correct heater mat used in propeller anti-icing system
A layer of heating element molded to a layer of insulating rubber
Two layers of heating element sandwiching a layer of insulating rubber
Two layers of insulating rubber sandwiching a layer of heating element
A layer of heating rubber molded into a layer of insulating element
Which two factors control the temperature of a heating element in an electrical heating anti-icing system
Electrical power and bleed air supply
Cooling condition and electrical power
Cooling condition and location of heating element
Bleed air supply and location of heating element
How is ice formed on aircraft
Ice in clouds sticks to aircraft and makes an ice layer that is equally thick over the whole aircraft
When supercooled liquid droplets hits the surfaces of the aircraft, it changes to solid
Aircraft takeoff when wet, the water form into ice due to low temperatures
Ice is formed when rain hits the surfaces of the aircraft
What is meant by the flashpoint of fuel
The flashpoint of fuel is the lowest temperature at which fuel starts to vaporize completely
The flashpoint of fuel is the lowest at which fuel at which fuel creates just enough vapour to become flammable
The flashpoint of fuel is the lowest at which fuel ignites without an external flame
The flashpoint is the highest temperature which can be reached if a fuel air mixture is burnt
What is unique about the fuel with FSII element
Improve fuel air mixture
Increased fuel flow to the engine
Increase the flashpoint of fuel
Lower freezing point of fuel
JP5 fuel is safer than other types of fuel as
The flashpoint is lower
The flashpoint is higher
The freezing point is higher
The freezing point is lower
In water scavenge system, the method used to suck out the water from the tank is
Venturi effect
Suction
Pumping
Vacuum
The respective tank switches in the control panel during refueling is used to control
Refuelling coupling
Refuelling valve
Refuelling pump
Refuelling manifold
If the fuel pressure warning light illuminate
It shows normal fuel pressure
The fuel pressure in the manifold is high
The fuel quantity is low
The fuel boost pump is not switched on
Which element is not part of the basic fuel quantity indicating system
Tank units
Amplifier
Indicator
Induction motor
The fuel quantity probes in the tank are installed
Horizontally and in different lengths
Horizontally in equal lengths
Vertically and in different lengths
Vertically and in equal lengths
Which of the following method is recommended for inspecting the surfaces of a cable for broken wires
Run a small magnet over the cable. The broken wires will expose itself
Run a rag over the cable, back and forth, for any catching with the cable experienced
Bend the cable
Bend the cable and inspected with a magnifying glass
What is the maximum deflection allowed on a cable fairlead?
4 degrees
3 degrees
5 degrees
6 degrees
Name one advantage of push pull rod system over a cable system
It is lighter
It comes in larger in diameter size
It is less affected by temperature change
It has less mechanical play
You have an aluminum alloy sheet with series number beginning with 6, what main alloy metal would that be
Copper
Zinc
Manganese
Magnesium and silicon
The core material of Alclad 2024-T4 is
Heat-treated aluminum alloy, and the surfaces material is commercially pure aluminum
Commercially pure aluminum, and the surface is heat treated aluminum alloy
Strained-hardened aluminum alloy, and the surfaces materials is commercially pure aluminum
Strained-hardened aluminum alloy, and the surface material is heat treated aluminum alloy
During which phase of flight do aircraft structures suffer the greatest amount of fatigue
Takeoff and landing
Straight and level flight
Slow descend
Taxing
When computing weight and balance, an aircraft is considered in balanced when
All moment arms of the plane fall within CG range
The movement of the passengers will not cause the moment arms to fall outside the CG range
The movement of fuel will not cause the moment arms to fall outside the CG range
The average moment of arm of the loaded plane fall within the CG range
When using a colored dye penetrant, what color would the faults appear
Red
Green
White
Yellow
A structure that made use of its outer skin for strength is called
Tension skin construction
Stress skin construction
Semi-monocoque construction
Monocoque construction
When the aircraft is on jack, its mainplanes experience
Bending stress
Compression stress
Tension stress
Torsion stress
Which of the following fabric is noted for being flexible?
Kevlar
Boron
Glass
Carbon
In the process of weighing an aircraft towards obtaining the CG, the arms from the weighing points always extend
Parallel to the center line of the airplane
Straight forward from each of the landing gear
Directly from each weighing points to the others
Parallel to the chord line of the wing
Excessive shoulder wear is caused by
Locked or non-rotating wheel on a dry runway
Landing on a grooved runway
Under inflation of tires
Overinflation of tires
The function of the master cylinder is to
Produce the breaking pressure
Build-up pressure to control the break metering valve
Give artificial feel on the steering system
Standby as back up for emergency use
What pushes the lock links over center against the drag links point to ensure a positive down lock on the main undercarriage
Safety pin
Downlock sensors
Downlock springs
Aircraft weight
What is the function of the torque link
Allow the inner cylinder to rotate and to move up and down in the outer cylinder
To allow the inner cylinder to move up and down in the outer cylinder but not to rotate
Prevent vibration build up in the landing gear during takeoff and landing
Give improved steering capabilities when taxing or narrow curves
Normal slippery action on a thin film of water is
Viscous hydroplaning
Dynamic hydroplaning
Static hydroplaning
Reverted rubber hydroplaning
What will happen if the microswitches in the landing gear indicating system is not properly rigged
Every system will still continue to function normally
The brake system on the landing gear will not be able to function
The indicating system will not display the correct status of the landing gear
The indicating system will be totally unserviceable (no indication at all)
When the landing gear position indication system is not displaying the correct status of the landing gear for the right main landing gear indicator, what could be the fault
The indication bulb is blown
There is no electrical power to the landing gear position system
There is no hydraulic power to the landing gear position system
The microswitches are not properly rigged
1. Which are the electrical components in the nose wheel steering system
i. Control unit
ii. Feedback potentiometer
iii. Command potentiometer
iv. Steering amplifier
i, ii, iii
ii, iii and iv
i, iii and iv
i, ii and iv
Which of the following is not a characteristic of oxygen
Combustible
Support combustion
Odorless
Tasteless
What happens to the combination valves when the servicing hosts of the LOX cart is connected to the fuel port
Build up port is closed and the gas port is opened to vent
Build up port is closed and fill port is opened to vent
Both build up port and fill port are opened to vent
Both fill and gas ports are closed
The pressure closing valve is shut when LOX converter pressure is
Below 75psi
Above 75 psi
Above 110psi
Above 210psi
The heat exchanger in the LOX system
Extract heat from the oxygen so that it is cooler for the air crew to inhale
Helps to cool the oxygen as it flows to the regulator
Cools the return
Ensures that liquid oxygen is fully converted to gaseous oxygen suitable for breathing
Which is the correct tool for separating the vent and supply hoses from the LOX converter?
Multi-grip
Vise-grip
Approved spanner or wrench
By hand
When the blinker on the oxygen regulator panel is
White, it means that the oxygen is flowing
Amber, LOX level is low
Red, system is over pressure
Black oxygen filter is clogged
The OBOGS oxygen concentrator comprises molecular sieve bed, coalescing filter, rotary valve and
Oxygen monitor
Oxygen regulator
Plenum assembly
Backup supply
The hazards involved in handling liquid oxygen are
Pressure explosion, freezing and corrosion
Fire and explosion, pressure explosion and freezing
Fire and explosion, pressure explosion and corrosion
Fire and explosion, pressure explosion and high levels of heat
What is the most important principle to consider in winter survival
Protect from wind and cold
Be located by rescuers
Water rationing
Food rationing
Name 2 of the items can be found in the Personal Survival Packs (PSP)
Salt tablets and strobe light
Flu tablets and strobe light
Salt tablets and lamb
Salt tablets and stroke light
What is the purpose of floating knife fitted on the life raft
To cut the rescue line
To cut the water pocket
To cut the liferaft painter cord and entangled cordage
To cut the liferaft valves
Liferaft generally are inflated by
Oxygen gas
Nitrogen gas
Carbon dioxide gas
Compressed air
Which part of the parachute is strong and contains some elasticity and it absorb much of the shock load
Parachute pack
Pilot chute, canopy, suspension lines, pack and harness
Suspension lines
Canopy
Which component is designed to operate within 2 seconds after being immersed in seawater
SEAWARS (sea water artificial release system)
SEAWARS (sea water activated release system)
UWARS (universal water activated release system)
UWARS (universal water artificial release system)
The anti g suit gives protection against g forces by
Applying counter pressure to the abdomen, thighs and legs
Applying counter pressure to the head, thighs and legs
Applying counter pressure to the abdomen and head
Applying counter pressure to the abdomen, thighs and arms
The air supply to the anti g suit is automatically controlled by
Oxygen valve
Inflation valve
Anti g valve
Inlet and inflation valve, relief and safety topping up valve, deflation plug
