NEW
Font size
WorksheetsAircraft Exam MCQ
Total questions: 40
Worksheet time: 40mins
The most important properties of air that affect aerodynamic behaviour are its
static pressure, temperature and density
Dynamic pressure, temperature and density
Temperature and density
Air
Afterburners will produce approximately ____ increase of thrust but with a corresponding ____ increase in fuel flow
50% and 150% respectively
100% and 100% respectively
100% and 50%
50% and 50%
What is the term for movement of the rotor blades during a pitch angle change?
Feathering
Collective pitch change
Pitching
Hovering
To activate normal pressure demand mode of oxygen supply the switches on the oxygen regulator panel must be set to:
Emergency Level set to ‘Normal', Diluter Lever set to ‘Norm' and Mode Lever set to 'On’
Emergency Level set to 'Normal', Diluter Lever set to Norm and Mode Lever set to no
Emergency Level set to ‘Normal', Diluter Lever set to ‘Norm' and Mode Lever set to 'OFF:
Emergency Level set to ‘Abnormal', Diluter Lever set to ‘Norm' and Mode Lever set to 'On’
Name 2 of the items can be found in the Personal Survival Packs (PSP)?
Salt tablets & strobe light
Sweet Tablets & strobe light
Salt tablets and stroke lights
Salt tablets and stobe light
Which of the following may be designed as the weighing points of an aircraft for weight and balance calculation?
i. Jacking points
ii. Centre of gravity point
iii. Nose and main landing gear.
i and iii
i and iiii
i and ii
1 and 3
The high level indication light comes on during pressure refuelling when
when tanks are full
when tank are full
when tanker are full
when tanky is full
What happens when the pressure closing valve is shut?
pressure in the converter continues to build up gradually
pressure in the reducer continues to build up gradually
the pressure opens th valve
pressure in the converter continues to build up instantly
Which part of the parachute is strong & contain some elasticity & it absorb much of the shock load?
Suspension lines
Suspension straps
Suspense
Suspending lines
Which component is designed to operate within 2.5 seconds after being immersed in seawater?
SEAWARS (Seawater ACTIVATED Release System)
SEAWARS (Seawater Activation Release System)
SEAWARS (Seawater Artificial Release System)
SEAWARS (Seawater Activated Release System)
What is the ply rating of an aircraft tire used to express?
The relative strength of an aircraft's tire
The relative strength of an aircraft tire
The toughness of the aircraft tire
The relative strength of an aircrafts tire
In the anti-icing pneumatic system, the deicer consists of a series of
Inflatable tubes
Inflatable balloons
Inflatable Boots
Inflammable tubes
Why is cabin pressurisation of military aircraft limited to a maximum differential pressure of about 3.5 psi?
Due to the danger of rapid decompression
Due to the danger of instant decompression
Due to the danger of rapid compression
Due to the danger of rapid decompressurisation
When is a landing gear retraction check NOT required?
After prolonged taxying
After prolonged carying
After prolonged waiting
After hard landing
The air conditioning system pressurises the fuselage during flight. Which of the following statements is correct?
The best condition for aircraft structure would be no pressurisation during flight
The best condition for aircraft structure would be limited pressurisation during flight
The best condition for aircraft structure pressurisation to ground air
The best condition for aircrew pressurisation would be no pressurisation during flight
What is SARBE stands for
Search and Rescue Beacon Equipment
Search and Rescue Beam Equipment
Search and Rescue Bacon Equipment
Search and Rescue Beacon
What is the function of the afterburning principle?
To improve aircraft take off, climb and combat performance
To improve aircraft take off, climbing and combat performance
To improve aircraft taking off, climb and combat performance
To improve aircraft take off, climb and wombat performance
In transonic flight, control effectiveness is reduced because of
control surface is operating in 'aerodynamically dead' air mass
control surface is operating in 'aerodynamically life' air mass
control surface is operating in 'dynamically dead' air mass
control surface is operating in 'aerodynamically dead' ground mass
What causes the caution light in the cockpit to remain on?
Insufficient fluid in reservoir
Insufficient liquid in reservoir
Presence of air in reservoir
Caution light mulfunction
The main purpose of the metering pin found in shock struct is for
controlling the rate of fluid flow from the lower to the top chamber
seperating the gas from the fluid
controlling the rate of fluid flow from the middle to the middle chamber
stopping the rate of fluid flow from the top to the lower chamber
A developer is applied on the surface of the test material to draw out the penetrant from the flaw by
capillary action
caterpillar action
capiliary action
capillary
What is the advantage of a temperature control circuit using electronic components?
There are no mechanical parts that can cause wear
There are no mechanical parts that can wear
There are no hydraulic parts that will wear
Electric is fast
What are the surfaces that require electrical heating in the turbo-propeller engine installation?
Air intake cowling of engine, propeller blades and spinner assembly
Air intake cowling of engine
Leading edge of propeller
Pilot chair
Fire detectors are used in areas where the risks of fire are at their highest due to the
i high volume of air flow
ii. high ambient temperature
iii. presence of inflammable fluid lines
iv. use of non heat resistant material for the aircraft structure
ii and iii
i and iii
2 and 3
two and three
The purpose of the inlet coalescing filter
remove contaminant and moisture from ECS air
remove contaminant and moisture from ambient air
remove dust and moisture from ECS air
remove contaminant and moisture from cockpit
Jet aircraft use nose wheel landing gears and not tail wheel landing gears because
the nose gear has better directional stability and it prevents nosing over during brake applications
the nose gear allows for better view around
the nose gear allows for better maneuverability on ground
the nose gear allows for better steering
Name the 4 primary components in a basic hydraulic system
pump, control valve, jack, and reservoir
pressure valve, jack and tank
pump, control valve
jack and reservoir
What is the cooling principle of the vapour cycle machine?
The refrigerant is compressed and expanded in a closed circuit and cooled by ambient air
The refrigerant is compressed and expanded in a open circuit and cooled by ambient air
The refrigerant is compressed and expanded in a closed circuit and cooled by ECS air
The refrigerant is expanded and compressed in a closet circuit and cooled by ambient air
Which is NOT a characteristic of a Pressure Demand Oxygen System?
Oxygen is delivered directly into the cabin and correct proportion of oxygen/air is mixed for aircrew as a factor of altitude
Oxygen is delivered directly into the cockpit and correct proportion of oxygen/air is mixed for aircrew as a factor of altitude
When inhaling, oxygen is supplied
When on oxygen is supplied
In the rotor brake system, if the pilot move the braking lever into the static braking notch, the pressure in the rotor brake will be
100 bar
200 bar
One Hundred Bar
1 Hundred Bar
Bernoulli's equation for subsonic flow states:
If the velocity of an air stream within a tube increases, the static pressure of the air decreases, but the sum of the static pressure and the dynamic pressure remains constant.
If the velocity of an air stream within a tube increases, the dynamic pressure of the air decreases, but the sum of the static pressure and the dynamic pressure remains constant.
If the velocity of an air stream within a tube increases, the static pressure of the air decreases, but the sum of the dynamic pressure and the static pressure remains constant.
If the velocity of an air stream within a tube increases, the static pressure of the air decreases, but the sum of the static pressure and the dynamic pressure decreases as well
Air turbine starter generally incorporate a reduction gear to convert the?
High speed low torque of the turbine wheel to a low speed high torque to the output shaft
High speed high torque of the turbine wheel to a low speed high torque to the output shaft
Low speed low torque of the turbine wheel to a low speed high torque to the output shaft
High speed low torque of the turbine wheel to a high speed high torque to the output shaft
The aircraft life is usually determined by
flight hours
life hours
ground hours
flying hours
In the typical cabin pressure regulator, how is the control chamber exposed to the atmosphere?
through the needle valve
through the control valve
through the orifice
through the valves
In a typical helicopter fuel system, what is the function of the jet pump?
Transfer fuel from other tank into the feeder tank
Transfer fuel from feeder tanks into the other tank
Transfer fuel from drop tanks into the feeder tank
Transfer fuel from other tanks to the feeder tank
Which of the following is an advantage of the cable control system over the push-pull rod system?
it has less mechanical play
it has no lapse in control
it is fast to reaction
it is more cost efficient
Arresting gear is extended by _____ pressure and retracted by _________ pressure?
air, hydraulic
air, hydraulics
air, hydrocele
air, hydrofoam
What is the advantage of AVGAS fuel?
easier to start engine
Cost efficient
easier to refuel
easier to start wings
During normal flight, what is the normal cabin pressurisation?
8000 feet above sea level
18000 feet above sea level
80000 feet above sea level
80,000 feet above sea level
When is a landing gear retraction check NOT required?
After prolonged taxying
After prolonged taxing
After prolonged trucking
After prolonged tax-ing
