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Consider the following statements:
As compared to a turboprop, a turbojet
1. Can operate at higher altitudes
2. Can operate at higher flight velocities
3. Is more fuel efficient at lower speeds
Of these statements
As compared to a turboprop, a turbojet
1. Can operate at higher altitudes
2. Can operate at higher flight velocities
3. Is more fuel efficient at lower speeds
Of these statements
- a)1, 2 and 3 are correct
- b)1 and 2 are correct
- c)2 and 3 are correct
- d)1 and 3 are correct.
Correct answer is option 'B'. Can you explain this answer?
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Consider the following statements:As compared to a turboprop, a turboj...
Ans. (b)
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Consider the following statements:As compared to a turboprop, a turboj...
Understanding the Comparison: Turboprop vs. Turbojet
When comparing turboprop and turbojet engines, we need to analyze their operational capabilities and efficiency across different flight conditions.
1. Altitude Capability
- Turbojets can operate at higher altitudes compared to turboprops.
- This is due to their design, which allows for greater efficiency in thin air. Turbojets are optimized for high-speed flight, making them suitable for cruising at higher altitudes.
2. Flight Velocity
- Turbojets are designed to operate at higher flight velocities than turboprops.
- Turbojets generate thrust through jet propulsion, which is more effective at supersonic speeds, while turboprops are more efficient at lower speeds, typically under 450 knots.
3. Fuel Efficiency at Lower Speeds
- Turboprops are generally more fuel-efficient at lower speeds.
- They use a propeller to generate thrust and are optimized for slower, regional flights, making them the preferred choice for short-haul operations.
Conclusion: Correct Statements
- Thus, statements 1 and 2 are correct: a turbojet can operate at higher altitudes and higher flight velocities.
- Statement 3 is incorrect; turboprops are more fuel-efficient at lower speeds.
Therefore, the correct answer is option b) 1 and 2 are correct.
When comparing turboprop and turbojet engines, we need to analyze their operational capabilities and efficiency across different flight conditions.
1. Altitude Capability
- Turbojets can operate at higher altitudes compared to turboprops.
- This is due to their design, which allows for greater efficiency in thin air. Turbojets are optimized for high-speed flight, making them suitable for cruising at higher altitudes.
2. Flight Velocity
- Turbojets are designed to operate at higher flight velocities than turboprops.
- Turbojets generate thrust through jet propulsion, which is more effective at supersonic speeds, while turboprops are more efficient at lower speeds, typically under 450 knots.
3. Fuel Efficiency at Lower Speeds
- Turboprops are generally more fuel-efficient at lower speeds.
- They use a propeller to generate thrust and are optimized for slower, regional flights, making them the preferred choice for short-haul operations.
Conclusion: Correct Statements
- Thus, statements 1 and 2 are correct: a turbojet can operate at higher altitudes and higher flight velocities.
- Statement 3 is incorrect; turboprops are more fuel-efficient at lower speeds.
Therefore, the correct answer is option b) 1 and 2 are correct.
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Consider the following statements:As compared to a turboprop, a turbojet1. Can operate at higher altitudes2. Can operate at higher flight velocities3. Is more fuel efficient at lower speedsOf these statementsa)1, 2 and 3 are correctb)1 and 2 are correctc)2 and 3 are correctd)1 and 3 are correct.Correct answer is option 'B'. Can you explain this answer?
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