Preview Questions Aerospace Engineer | Role Specific Skill

Question 1: What is the role of the power turbine in a turboshaft engine?

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To extract energy from the exhaust gases to drive the compressor.

To control the exhaust gases and ensure they flow smoothly.

To convert mechanical energy from the turbine to electrical power.

To extract energy from the exhaust gases to drive accessories.

Question 2: In terms of aircraft performance, what is the significance of "stall speed" in design?

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Stall speed is irrelevant in modern aircraft as technology prevents stalls

It determines the aircraft's maximum cruising speed

Stall speed determines the minimum speed at which the aircraft can maintain controlled flight, influencing wing design and aerodynamics

Stall speed only affects the aircraft's ability to take off and land

Question 3: In aircraft design, how does the selection of wing sweep angle affect the aircraft's aerodynamic performance?

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It reduces drag at transonic and supersonic speeds by delaying shock wave formation

It increases the aircraft's structural weight and reduces maneuverability

It has no significant impact on aircraft performance

It increases drag at subsonic speeds but reduces lift-to-drag ratio

Question 4: How does increasing the aspect ratio of a wing affect the aircraft's roll stability?

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Increases roll instability

Improves roll rate

Decreases the maneuverability

Increases the turning rate

Question 5: What is the role of the oxidizer in a liquid rocket engine?

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Cools the engine components

Initiates the combustion process

Provides thrust to the engine

Controls reaction rates

Question 6: What is the purpose of the augmentor (afterburner) in a military jet engine?

Which action should you take?

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To enhance the engine's longevity by reducing the temperature of exhaust gases

To reduce the temperature of exhaust gases before they are expelled

To increase thrust by burning additional fuel in the exhaust flow, providing extra propulsion

To improve fuel efficiency at subsonic speeds