Module - 11 (Aeroplane Aerodynamics, Structures & Systems)
Final Practice Exam Test
- If an aircraft is yawing to the left, where would you position the trim tab on the rudder ?
- To the centre
- To the right
- To the left
- When a leading edge flap is fully extended,what is the slot in the wing for?
- To increase the lift
- To re-energise the boundary layer
- To allow the flap to retract into it when it retracts
- The purpose of a slot in a wing is to ?
- act as venturi, accelerate the air and re-energise boundary layer
- speed up the airflow and increase lift
- provide housing for the slat
- Large flap deployment ?
- causes increased spanwise flow towards tips on wing upper surface
- causes increased spanwise flow towards tips on wing lower surface
- has no effect on spanwise flow
- In a Central Air Data Computer (ADC),Indicated Air Speed (IAS) is produced from ?
- static pressure only
- pitot pressure only
- pitot and static air pressure
- In a Central Air Data Computer, altitude is produced from ?
- static air pressure
- pitot pressure only
- pitot and static air pressure
- On a flight management system, the database is updated every ?
- 3 Month
- 1 Month
- 2 Month
- On a modern aircraft flight instrument display system, Radio deviation is shown on ?
- EADI
- EHSI
- EHSI & EADI
- Which part of the wing of a swept-wing aircraft stalls first ?
- Tip stalls first
- Root stalls first
- Both stall together
- Extending a leading edge slat will have what effect on the angle of attack of a wing?
- Increase the angle of attack
- No effect on angle of attack
- Decrease the angle of attack
- Wing tip vortices are strongest when ?
- flying slowly at high angles of attack
- flying high speed straight and level flight
- flying into a headwind
- An example of a secondary flight control is a ?
- elevator
- flap
- spoiler
- When the trailing edge flaps are lowered, the aircraft will?
- sink
- pitch nose down
- pitch nose up
- On an aircraft with an all-moving tailplane pitch up is caused by ?
- increasing tailplane incidence
- decreasing tailplane incidence
- up movement of the elevator trim tab
- The layer of air over the surface of an aerofoil which is slower moving, in relation to the rest of the airflow, is known as?
- boundary layer
- camber layer
- none of the above are correct
- What is a controlling factor of turbulence and skin friction ?
- Aspect ratio
- Fineness ratio
- Countersunk rivets used on skin exterior
- Fuselage station numbers are measured from the front of the aircraft in ?
- feet
- inches
- feet and inches
- Structure with built in redundancy is called ?
- failsafe
- double safe
- safe life
- The Airworthiness Notice that refers to structural surveys is ?
- Notice 65
- Notice 79
- Notice 89
- Wrinkling of the skin on the upper surface of the fuselage indicates ?
- sagging
- shedding
- hogging
- A structure that has a high designed reserve strength would be classified as ?
- secondary
- tertiary
- primary
- In semi-monocoque construction, compression loads are taken by ?
- bulkheads
- stringers
- frames
- Buckling in a semi-monocoque structure is prevented by ?
- longerons.
- bulkheads
- stringers
- When both sides of a structural repair are not easily reached, which type of fastener would you use ?
- Pop rivet
- Blind rivet
- Hi lock bolt
- If an aircraft has alkaline batteries, the battery compartment drain pipes will be ?
- plastic
- aluminium alloy
- stainless steel
- When an item is cocooned, the visual indicator will indicate ?
- humidity
- temperature
- toxic gases
- Wing bending and shear loads are taken by ?
- spar cap
- main spar
- skin
- A leading edge slat is attached to the ?
- slat track
- wing upper skin
- front spar
- Flutter can be reduced by using ?
- servo tabs
- a horn balance
- mass balancing
- An elevator controls the aircraft motion in ?
- yaw
- pitch
- roll
- When does a 'blower' air conditioning system produce the most air ?
- At high altitudes
- At low altitudes
- It is not affected by altitude
- When an aircraft is heading due north (magnetic) towards a VOR station the reference and variable signals will be ?
- 270° out of phase
- in phase
- 180° out of phase
- The modulation of the outer marker is ?
- 400 Hz
- 1300 Hz
- 3000 Hz
- The approximate distance of the middle marker from the runway threshold is ?
- 3 miles
- 3500 ft
- 7 miles
- The VOR system comprises ?
- reference phase signal
- variable phase signal
- variable and reference phase signals
- The glideslope transmitter operates on ?
- frequencies of 108 to 118 MHZ
- the UHF band
- the VHF band
- L band DME transmits on a frequency of ?
- 1090 MHz
- 2210 MHz
- 4133 MHz
- Laser gyros have ?
- 2 rotating parts
- 4moving parts
- no rotating parts
- Flight management control system (FMCS) utilises ?
- VOR, ADF, DME
- ILS, DME, ADC
- ILS, VOR, ADF
- What channel of the autopilot does the glideslope control?
- Pitch
- Roll
- Yaw
- Radio marker information is displayed on ?
- ADI
- EICAS
- HIS
- Where is alpha angle used ?
- IRS
- Accelerometer
- Angle of attack
- In Airways flying, what is the barometric scale of the altimeter set to ?
- 2000.25
- 1013.25
- 100.25
- The hot junction of thermocouple is ?
- in the combustion chamber
- in the instrument
- aft of combustion chamber
- What kind of gyro is a rate gyro ?
- Displacement
- Tied down
- Space
- When carrying out a symmetry check on a large aircraft, what method of measurement is normally used?
- Lateral alignment method
- Longitudinal alignment method
- Steel tape and spring balance
- What are the faying surfaces of a repair?
- Middle of repair
- Material under repair
- Edges of repair metal
- Why is a joggle joint used?
- To provide a flush fit
- To provide a smooth contour to surface
- To add strength
- DME works on the frequency of ?
- HF
- UHF
- VHF
- GPS uses ?
- uses 21 satellites equally spaced around 7 orbits
- uses 18 satellites equally spaced around 6 orbits
- uses 24 satellites equally spaced around 6 orbits
- Decca navigation uses ?
- LF
- HF
- VHF
- Earth rate is approximately ?
- 5 degrees per hour
- 15 degrees per hour
- 84 degrees per hour
- The localizer deviation signal for the flight director comes from the ?
- flight director computer
- VHF comm system
- VHF nav system
- The preferred method of battery charging a Ni-Cad battery is constant ?
- current
- power
- voltage
- What does the differential sensing coil sense ?
- Power
- Volts
- Current
- In an AC generation system, the frequency and phase rotation ?
- must be out of phase prior to paralleling
- is of no consequence after paralleling
- must be synchronized prior to paralleling
- One of the main purposes of a CSD is to ?
- maintain constant load on the generator
- enable generators to be paralleled
- prevent engine overload
- What is the small pin on the DC ground power connector ?
- Positive to external power relay
- Positive to battery relay
- Ground or earth
- How is RAT driven ?
- Fan
- Compressor
- Airstream
- The small pins in the power connector plug are ?
- positive
- negative
- neutral
- Zener diodes are for ?
- rectification
- voltage stabilization
- voltage regulation
- Which components within a generator control unit connects the output of the field power supply to the generator exciter?
- Generator control relay
- Generator line contactor
- Generator power pilot relay
- During normal engine shut-down, the generator ?
- breaker and control relay are both tripped
- control relay is tripped only
- breaker is tripped only
- A neutralizing agent for sulphuric acid is ?
- sodium bicarbonate
- borax powder
- citric acid
- A vibrating contact voltage regulator has ?
- a resistor in series with the points
- a volts coil in parallel with the points
- a resister in parallel with the points
- The method used to rapidly charge a nickel-cadmium battery utilizes ?
- constant current and varying voltage
- constant voltage and varying current
- constant current and constant voltage
- A constant speed drive unit has a warning light indication ?
- for low speed
- for low oil pressure
- for when it is disconnected from the generator
- The purpose of an inverter is to convert ?
- DC to AC
- AC to DC
- AC to a higher frequency AC
- The electrolyte in a lead-acid battery contains ?
- hydrochloric acid
- nitric acid
- sulphuric acid
- To prevent corrosion at the terminals of a lead-acid battery ?
- copper connectors are used
- petroleum jelly may be applied to the connections
- the connectors may be painted
- The output from an AC generator is taken from ?
- slip rings
- slip rings via commutator
- connections on the stator
- When connecting aircraft batteries, the last lead to connect is the ?
- positive earth
- negative
- positive
- In a paralleled AC generation system load sharing is for ?
- real and reactive load
- reactive load only
- real load only
- The ratio between apparent power and true power is the ?
- efficiency
- power factor
- power rating
- Apparent power is measured in ?
- Volt Amps
- Kilovolts
- Watts
- Cargo and baggage compartments in which a fire is completely confined come under ?
- Class B
- Class C
- Class D
- Aircraft emergency escape slides are usually pressurised with ?
- oxygen
- CO2
- helium
- How do you clean seat belts ?
- With MEK
- With white spirit
- With warm water with low alkalinity soap
- Megaphones must be stowed so they can withstand an inertia force of ?
- 9g
- 12g
- 15g
- Cargo nets are manufactured from ?
- nylon
- hessian
- polypropylene
- Toilet flush motor is protected from overheat by ?
- water cooling
- thermal protection
- cooling fan on timer switch
- What type of compressor is used on a pneumatic system ?
- Rotary vane type
- Spur gear type
- Positive displacement type
- High pressure pneumatic pump is a ?
- spur gear
- butterfly pump
- reciprocating pump
- The pneumatic system pump is a ?
- centrifugal type
- rotor vane type
- piston type
- To check an oxygen system for moisture ?
- a sniff test is used
- a hygrometer is used
- pass 72 litres/min through a filter paper in a clean glass
- Oxygen purging is a process of ?
- pressure testing the system
- measuring the flow rate from the regulator
- removing moisture from the system
- Lubricate oxygen connector threads using ?
- Teflon tape
- Hellerene
- WD40
- A chemical oxygen generator operates at ?
- 45°C at 10 psi for 15 minutes
- 45°F at 10 psi for 15 minutes
- 45°K at 10 psi for 15 minutes
- Cylinders containing purified oxygen for breathing are painted ?
- black with a white collar
- black
- white with a black collar
- The international marking for a breathing oxygen pipeline is a series of ?
- dots
- rectangles
- diamonds
- An anti-balance tab is used ?
- to give more feel to the controls
- for trimming the aircraft
- to relieve stick loads
- Oxygen filters are made of ?
- carbon fibres
- steel wool
- sintered bronze
- The direction of flow in an oxygen non return valve is indicated ?
- by visual inspection
- by colour coding
- by an arrow
- To avoid condensation forming in an oxygen cylinder ?
- cylinder pressure is left at 100/200 p.s.i.
- cylinder pressure is left at 200/300 p.s.i.
- cylinder pressure is left at 300/400 p.s.i.
- Oxygen bottle capacity varies between ?
- 80 2250 litres
- 100 3200 litres
- 200 2250 litres
- Oxygen cylinders are removed for overhaul and tested ?
- every 3 years
- every 6 years
- every 4 years
- Rate of flow of oxygen is given in ?
- pounds/minute
- litres/pounds
- litres/minute
- The cylinder of a portable oxygen set is made of ?
- aluminium
- alloy steel
- stainless steel
- Pressure breathing systems must be used at altitudes ?
- above 40,000 ft
- below 40,000 ft
- above 30,000 ft
- The critical altitude for oxygen requirement is approximately ?
- 38,000 ft
- 25,000 ft
- 4,000 ft
- A chemical oxygen generator has a supply duration of at least ?
- 15 minutes
- 30 minutes
- 5 minutes
- The life of an aircraft oxygen cylinder is ?
- 2 years
- 10 years
- 5 years
- How do oxygen cylinders show over pressure ?
- Green rupturing disc
- Audible warning
- Red rupturing disc
- Where are the left handed threads found in an oxygen system ?
- Line valve
- Shut-off valve
- Charging connection
- A thermal compensator is used in ?
- a fuel system
- an oxygen system
- an hydraulic system
- What pressure are oxygen cylinders usually pressurised to ?
- 300 PSI
- 1800 PSI
- 3000 PSI
- Which connector has a left hand thread ?
- N2
- Freon
- O2
- A demand regulator in a portable oxygen bottle opens ?
- all the time
- when breathing
- when 100% selected
- Anoxia is due to ?
- lack of oxygen
- low air pressure on the body
- release of nitrogen bubbles in the blood
- Navigation lights are supplied by the following circuit ?
- Dual circuit
- Single circuit
- Individual circuits
- Wing tip vortices are strongest when ?
- flying high speed straight and level flight
- flying slowly at high angles of attack
- flying into a headwind
- Krueger flaps are on ?
- the leading edge
- the trailing edge
- either the leading or training edge
- In an Artificial Horizon, Erection Error is caused by ?
- bottom lightness of inner gimbals
- bottom heaviness of inner gimbals
- displacement of erection control device
- Machmeters work on ?
- static
- pitot
- pitot and static
- Emergency frequency is ?
- 125.5 Hz
- 121.5 Hz
- 123.5 Hz
- Wavelength of band radar is ?
- 3 cm
- 5 cm
- 10 cm
- CAT 2 RVR limit is ?
- 1200 ft
- 10,000 ft
- 1000 ft
- Speed of an HMG is controlled by a ?
- CSD unit
- ID unit
- Swashplate
- The purpose of a synchronising bus bar is ?
- to allow monitoring and trimming from the flight deck
- to enable two propeller systems to be synchronised
- to monitor total current load
- Battery charging procedures can be found in ATA ?
- Chapter 24 Section 21
- Chapter 31 Section 21
- Chapter 24 Section 31
- A water separator is located ?
- downstream of heat exchanger
- downstream of turbine
- upstream of the turbine
- Air exiting the compressor side of an ACM ?
- will have decreased pressure and temperature
- no change in temperature or pressure as it is a centrifugal compressor
- will have increased pressure and temperature
- A gyroscopic body has its rigidity increased by ?
- increasing the rotor speed
- decreasing the rotor speed
- decreasing the mass of the rotor
- Random drift of a gyro is caused by ?
- rotation of the earth
- unbalance and bearing friction in the gyro
- aircraft turning with an error in roll
- On an aircraft's navigation displays, distance measuring equipment gives ?
- ground range to beacon
- slant range to beacon
- height and range to beacon
- The advantage of leading edge fluid de-icing is ?
- aerodynamic shape is not disturbed
- less of a fire hazard
- more efficient
- The force exerted by a hydraulic cylinder is equal to ?
- area * volume
- pressure * stroke
- area * pressure
- Phosphate Ester hydraulic fluid requires which kind of seals ?
- Butyl Rubber
- Synthetic Rubber
- Natural Rubber
- Mechanical sequence valves are operated by ?
- a striker pin
- the pilot
- the operation of a NRV
- How do you remove air from hydraulic fluid ?
- Vent to atmosphere
- Pass through a restriction
- Pass over a tray
- What happens to hydraulic fluid when it is overheated ?
- Increase acidity
- Increase viscosity
- Increase alkalinity
- When a fuel jettison valve is in transit, the magnetic indicator would show ?
- amber and cross line
- amber and in line
- green and in line