The Mechanism Of Jet Engine
Have you ever wondered how big engines like airplanes were able to function so effectively? The answer lies in their jet engines, which in fact move the airplane forward with a great force produced by a great thrust and which in turn causes the plane to fly very fast. Do you think you know all the facts about jet engines? If yes, take our quiz and see how you score in the end.
- 1.
What do jet engines power?
- A.
Motorcycles
- B.
Jet aircrafts, cruise missiles, and unmanned aerial vehicles
- C.
Cruise boats and motorcycles
- D.
Missiles
Correct Answer
B. Jet aircrafts, cruise missiles, and unmanned aerial vehiclesExplanation
Jet engines power jet aircrafts, cruise missiles, and unmanned aerial vehicles. Jet engines are specifically designed to generate thrust by expelling high-speed exhaust gases. These engines are commonly used in jet aircrafts for propulsion, allowing them to fly at high speeds and altitudes. Additionally, jet engines are also used in cruise missiles and unmanned aerial vehicles to provide the necessary power for their flight and maneuverability.Rate this question:
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- 2.
What type of cars do jet engines power?
- A.
BMWs
- B.
Ferraris
- C.
Rocket cars
- D.
Lamborghinis
Correct Answer
C. Rocket carsExplanation
Jet engines are specifically designed to power aircraft that operate at high speeds and altitudes. These engines work by drawing in air, compressing it, and then combusting it with fuel to produce thrust. Rocket cars, unlike regular cars such as BMWs, Ferraris, or Lamborghinis, are vehicles powered by jet engines. Rocket cars use the powerful thrust generated by jet engines to propel themselves forward, making them capable of achieving extremely high speeds in a short amount of time.Rate this question:
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- 3.
What is a turbojet engine?
- A.
It's a gas turbine engine that works by compressing air with an inlet and a compressor
- B.
It's a gas turbine engine that works by pumping air with an inlet and a compressor
- C.
It's a gas turbine engine that works by increasing air with an inlet and a compressor
- D.
It's a gas turbine engine that works by compressing water with an inlet and a compressor
Correct Answer
A. It's a gas turbine engine that works by compressing air with an inlet and a compressorExplanation
A turbojet engine is a type of gas turbine engine that operates by compressing air using an inlet and a compressor. This compressed air is then mixed with fuel and ignited, creating a high-pressure and high-velocity exhaust jet that propels the aircraft forward. The compression of air is a crucial step in the operation of a turbojet engine as it allows for efficient combustion and thrust generation.Rate this question:
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- 4.
What are turbofans?
- A.
They are dominant engine type for medium airliners
- B.
They are dominant engine type for long-range airliners
- C.
They are engine type for short and long-range airliners
- D.
They are dominant engine type for medium and long-range airliners
Correct Answer
D. They are dominant engine type for medium and long-range airlinersExplanation
Turbofans are the dominant engine type for medium and long-range airliners. This means that turbofans are the most commonly used engines in these types of aircraft. They provide the necessary power and efficiency for medium and long-distance flights, making them the preferred choice for these aircraft.Rate this question:
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- 5.
What is the Brayton cycle?
- A.
It's a thermodynamic cycle that describes the working of a constant-pressure heat engine
- B.
It's a dynamic cycle that describes the working of a constant-pressure heat engine
- C.
It's a thermodynamic cycle that describes the working of a heat engine
- D.
It's a thermodynamic cycle that describes the working of an unstable pressure heat engine
Correct Answer
A. It's a thermodynamic cycle that describes the working of a constant-pressure heat engineExplanation
The Brayton cycle is a thermodynamic cycle that describes the working of a constant-pressure heat engine. This cycle is commonly used in gas turbines and jet engines. In the Brayton cycle, air is compressed, heated at a constant pressure, expanded, and then cooled back to its original state. This cycle allows for the conversion of heat energy into mechanical work, making it an efficient process for power generation.Rate this question:
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- 6.
What are the disadvantages of a motorjet?
- A.
It's noisy and not fast enough
- B.
It's heavy, inefficient, and underpowered
- C.
It's light and slow
- D.
It needs too much fuel
Correct Answer
B. It's heavy, inefficient, and underpoweredExplanation
A motorjet has several disadvantages. Firstly, it is heavy, which can affect its maneuverability and overall performance. Secondly, it is inefficient, meaning it consumes more fuel than other types of engines, resulting in higher operating costs. Lastly, it is underpowered, which means it may not be able to generate enough thrust for certain applications or achieve high speeds. These disadvantages make the motorjet less desirable compared to other engine options.Rate this question:
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- 7.
What are the advantages of a pulsejet?
- A.
It's a very simple design used for the V 1 flying bomb and more recently on model aircraft
- B.
It's a very simple design used for the V 12 flying bomb and more recently on model aircraft
- C.
It's a very simple design used for the V 3 flying bomb and more recently on model aircraft
- D.
It's a very simple design used for the V 2 flying bomb and more recently on model aircraft
Correct Answer
A. It's a very simple design used for the V 1 flying bomb and more recently on model aircraftExplanation
The correct answer is that a pulsejet is a very simple design used for the V 1 flying bomb and more recently on model aircraft. This means that the pulsejet engine has been successfully used in military applications in the past, specifically in the V 1 flying bomb during World War II. It is also a popular choice for model aircraft engines due to its simplicity and efficiency.Rate this question:
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- 8.
What's a reaction engine?
- A.
It's an engine/motor that produces heat by expelling reaction mass
- B.
It's an engine/motor that produces friction by expelling reaction mass
- C.
It's an engine/motor that produces thrust by expelling reaction mass
- D.
It's an engine/motor that produces gas by expelling reaction mass
Correct Answer
C. It's an engine/motor that produces thrust by expelling reaction massExplanation
A reaction engine is an engine or motor that produces thrust by expelling reaction mass. This means that the engine propels itself forward by expelling mass in the opposite direction, according to Newton's third law of motion. The expelled mass creates a reaction force that propels the engine forward, allowing it to generate thrust and move.Rate this question:
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- 9.
What's the main disadvantage of a rocket?
- A.
It needs lots of repair
- B.
It needs lots of fuel
- C.
It needs lots of propellant
- D.
It needs lots of water
Correct Answer
C. It needs lots of propellantExplanation
The main disadvantage of a rocket is that it needs lots of propellant. Propellant is the substance that is used to propel the rocket forward. It is typically a combination of fuel and oxidizer. The large amount of propellant required adds weight to the rocket, making it more difficult to launch and maneuver. Additionally, the cost of acquiring and storing large quantities of propellant can be expensive.Rate this question:
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- 10.
What's a turbo rocket?
- A.
It's a turbojet where an additional oxidizer is added to the air stream in order to increase maximum altitude
- B.
It's a turbojet where additional water is added to the air stream in order to increase maximum altitude
- C.
It's a turbojet where oxidizer is suppressed in the air stream in order to increase maximum altitude
- D.
It's a turbofan where an additional oxidizer is added to the air stream in order to increase maximum altitude
Correct Answer
A. It's a turbojet where an additional oxidizer is added to the air stream in order to increase maximum altitudeExplanation
A turbo rocket is a type of engine, specifically a turbojet, that includes an additional oxidizer in the air stream. This additional oxidizer helps to increase the maximum altitude that the engine can reach.Rate this question:
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Current Version
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Mar 21, 2023Quiz Edited by
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Mar 19, 2019Quiz Created by
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