ToF/Prop

A detailed illustration of helicopter rotor dynamics and gas turbine engine components, showcasing the mechanics of aviation propulsion in action.

Aviation Propulsion Mastery Quiz

Test your knowledge on aviation propulsion systems, gas turbine engines, and helicopter mechanics with our comprehensive quiz. Designed for aviation enthusiasts and professionals alike, this quiz contains 21 questions to challenge your understanding of key concepts.

Topics covered include:

  • Propelling nozzles
  • Gas turbine engine components
  • Lubrication systems
  • Helicopter rotor mechanics
  • Fuel and Oil management
21 Questions5 MinutesCreated by FlyingSky299
What type of propelling nozzle is used for supersonic flight?
Fixed convergent nozzle
Fixed divergent nozzle
Variable geometry nozzle
Convergent nozzle
The solution to phase lag is to __________.
Increase pitch and increase the engine RPM
Advance the angle of pitch change at the correct point in the blade's rotation
Allow angular movement of the blades above or below the plane of the hub
Allow 'play' in the plane of rotation and restrict it with damping devices
What type of gas turbine engine is usually used on helicopters?
Turbojet engine
Turboprop or turbo-propeller engine
Turbofan engine
Turboshaft engine
What type of oil is used for gas turbine engine lubrication system?
Synthetic oil
Vegetable oil
Mineral oil
Fatty oil
The coning angle ________.
Remains the same with the increase of the main rotor RPM
Increases with the decrease of main rotor RPM
Increases with the increase of the main rotor RPM
Does not depend on the main rotor RPM
Into which section of the engine whereby fuel is injected and burned?
Turbine
Compressor
Exhaust
Combustion chamber
To resolve uneven blade loading, the solution is to have built-in twist with ____________.
Pitch angle increasing towards blade tip
Pitch angle decreasing towards blade root
Pitch angle remains the same throughout the blade
Pitch angle decreasing towards blade tip
The most critical bearing within a gas turbine engine is the ________ bearing.
Accessory
Engine
Turbine
Compressor
What is the primary function of the low pressure valve?
To supply fuel at the correct pressure and quantity during engine operation
To cut off the fuel supply during normal engine shut-down
To supply fuel to the engine at the correct pressure during start up
To enable the engine and the fuel system to be isolated from the aircraft fuel tanks during servicing or in the event of fire
How does a turboprop engine produce its thrust?
By accelerating a large mass of air at lower velocity
By accelerating a small mass of air at much higher velocity
By accelerating a large mass of air at a much higher velocity
By accelerating a small mass of air at a lower velocity
Some oil tanks are pressurized to?
Prevent the admission of dirt into the tank
Ensure a constant supply of oil to the pressure pump
Increase the temperature of the oil
Prevent the admission of air into the tank
What must be done to prevent the helicopter from hovering with one wheel low?
The tail rotor thrust must be higher than the main rotor biasing force
The main rotor thrust must be higher than the tail rotor biasing force
The tail rotor and main rotor must not be along the same horizontal plane
The tail rotor thrust and main rotor biasing force must act along the same horizontal plane
The function of the diffuser section of the centrifugal compressor is to?
Act as a rotating guide vane to guide the air into the combustion chamber
Convert the kinetic energy of the air into pressure energy
Straighten the airflow into the combustion chamber
Impart centrifugal energy to the air and increase its velocity
What is the primary function of the fuel heater?
To ensure fuel is supplied to the engine at the correct pressure and quantity
To control the pressure of the fuel
To heat and control the temperature of the fuel
To cool and control the temperature of the fuel
Visible droplets or pools of water in fuel are known as?
Entrained water
Dissolved water
Water slugs
Hard water
What is the primary function of the oil pressure pump?
To separate air from the oil after lubrication
To drain oil from the various parts of the engine after lubrication
To supply oil under pressure to the parts of the engine that require lubrication
To increase the temperature of the oil
The role of the compressor in a gas turbine engine is to?
Provide low pressure air to supercharge the high pressure compressor
Convert the pressure energy in the air into mechanical work to drive the engine accessories
Create a suction so that the air can flow through the engine easily
Provide high pressure air which can be heated in the combustion chamber and then expanded through the turbine
When the helicopter is hovering, the thrust produced by the tail rotor is __________.
Equal to the helicopter torque reaction
Less than the helicopter torque reaction
More than the helicopter torque reaction
Not related to the helicopter torque reaction
What is fitted into the gas turbine engine lubrication system to provide a warning impending failure of a component?
Oil jets
Chip detectors
Oil pumps
Oil coolers
Semi-rigid rotors improves the performance and control ability of the helicopter ___________.
But require complicated control system to resolve the blade flapping problem
And does not require any additional control system to resolve the blade flapping problem
But require a simplified control system to resolve the blade flapping problem
None of the above/below
When a helicopter cyclic stick is moved forward, the main rotor blades will change their pitch angles continuously throughout each revolution. This is known as __________.
Free wheeling
Main rotor biasing
Cyclic pitch change
Collective pitch change
{"name":"ToF\/Prop", "url":"https://www.quiz-maker.com/QPREVIEW","txt":"Test your knowledge on aviation propulsion systems, gas turbine engines, and helicopter mechanics with our comprehensive quiz. Designed for aviation enthusiasts and professionals alike, this quiz contains 21 questions to challenge your understanding of key concepts.Topics covered include:Propelling nozzlesGas turbine engine componentsLubrication systemsHelicopter rotor mechanicsFuel and Oil management","img":"https:/images/course8.png"}
Powered by: Quiz Maker