14 Gas Turbines Air Inlets – LMS

📄 Detailed Notes ⚡ Cheat Sheet

Results

📄 Notes ⚡ Cheat Sheet

Q1. The most unfavourable conditions for adequate inlet air flow of a turbofan engine are:

idle thrust, zero forward speed with no wind.

maximum thrust at rotation speed on the ground during take-off.

maximum thrust during climb out with strong crosswind.

maximum take-off thrust, zero forward speed and strong crosswind conditions.

Q2. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The speed decreases in flow direction.II. The total pressure remains constant in flow direction.

I is incorrect, II is incorrect.

I is correct, II is correct.

I is incorrect, II is correct.

I is correct, II is incorrect.

Q3. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The dynamic pressure increases in flow direction.II. The static temperature increases in flow direction.

I is correct, II is incorrect.

I is incorrect, II is incorrect.

I is correct, II is correct.

I is incorrect, II is correct.

Q4. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The speed remains constant in flow direction.II. The total pressure remains constant in flow direction.

I is correct, II is correct.

I is correct, II is incorrect.

I is incorrect, II is correct.

I is incorrect, II is incorrect.

Q5. Which statement is correct about the flow in a divergent jet engine inlet?I. The static pressure remains constant in flow direction.II. The total temperature remains constant in flow direction.

I is correct, II is incorrect.

I is incorrect, II is correct.

I is correct, II is correct.

I is incorrect, II is incorrect.

Q6. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The speed decreases in flow direction.II. The total pressure decreases in flow direction.

I is incorrect, II is correct.

I is correct, II is correct.

I is correct, II is incorrect.

I is incorrect, II is incorrect.

Q7. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The static pressure increases in flow direction.II. The total temperature increases in flow direction.

I is correct, II is incorrect.

I is incorrect, II is incorrect.

I is incorrect, II is correct.

I is correct, II is correct.

Q8. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The dynamic pressure decreases in flow direction.II. The static temperature decreases in flow direction.

I is correct, II is incorrect.

I is incorrect, II is correct.

I is incorrect, II is incorrect.

I is correct, II is correct.

Q9. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The speed remains constant in flow direction.II. The total pressure decreases in flow direction.

I is correct, II is correct.

I is incorrect, II is incorrect.

I is incorrect, II is correct.

I is correct, II is incorrect.

Q10. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The static pressure remains constant in flow direction.II. The total temperature decreases in flow direction.

I is incorrect, II is incorrect.

I is correct, II is correct.

I is incorrect, II is correct.

I is correct, II is incorrect.

Q11. Which statement is correct about the flow in a divergent jet engine inlet?I. The speed increases in flow direction.II. The total pressure increases in flow direction.

I is correct, II is correct.

I is incorrect, II is correct.

I is incorrect, II is incorrect.

I is correct, II is incorrect.

Q12. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The static pressure decreases in flow direction.II. The total temperature increases in flow direction.

I is correct, II is correct.

I is incorrect, II is correct.

I is incorrect, II is incorrect.

I is correct, II is incorrect.

Q13. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The dynamic pressure increases in flow direction.II. The static temperature decreases in flow direction.

I is correct, II is correct.

I is correct, II is incorrect.

I is incorrect, II is correct.

I is incorrect, II is incorrect.

Q14. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The dynamic pressure remains constant in flow direction.II. The static temperature remains constant in flow direction.

I is correct, II is incorrect.

I is incorrect, II is incorrect.

I is incorrect, II is correct.

I is correct, II is correct.

Q15. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The static pressure increases in flow direction.II. The total temperature remains constant in flow direction.

I is incorrect, II is incorrect.

I is correct, II is incorrect.

I is correct, II is correct.

I is incorrect, II is correct.

Q16. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The dynamic pressure decreases in flow direction.II. The static temperature increases in flow direction.

I is incorrect, II is correct.

I is incorrect, II is incorrect.

I is correct, II is incorrect.

I is correct, II is correct.

Q17. Which of the following parameters remains constant in a divergent (subsonic) gas turbine engine intake?

Static pressure.

Dynamic pressure.

Static temperature.

Total temperature.

Q18. In a subsonic convergent duct the:

pressure increases, velocity decreases and temperature increases

temperature increases, velocity increases and pressure decreases

velocity increases, pressure decreases and temperature decreases

pressure increases, velocity decreases and temperature decreases

Q19. The internal geometry of a turbofan intake for a subsonic commercial aeroplane is:

divergent in order to increase both airflow velocity and static pressure in front of the fan.

convergent in order to reduce airflow velocity in front of the fan.

divergent in order to reduce airflow velocity and increase static pressure in front of the fan.

convergent in order to increase airflow velocity and reduce static pressure in front of the fan.

Q20. For a subsonic airflow, in a divergent duct the:

pressure decreases, velocity increases and temperature increases

pressure decreases, velocity increases and temperature decreases

pressure increases, velocity decreases and temperature decreases

pressure increases, velocity decreases and temperature increases

Q21. For a subsonic airflow, air passing through a divergent duct:

increases in pressure and velocity

decreases in velocity and increases in pressure

decreases in pressure and velocity

increases in velocity and decreases in pressure

Q22. For a subsonic airflow, air passing through a divergent duct:

Increases in velocity and decreases in pressure

Decreases in velocity and increases in pressure

Decreases in pressure and velocity

Increases in pressure and velocity

Q23. One of the functions of a gas turbine engine subsonic intake is to:

decrease static temperature.

increase total pressure.

decrease airflow velocity.

increase airflow velocity.

Q24. The effect of ram air on the operation of a gas turbine engine is:

an increase in the efficiency of the engine.

an increase in the indicated airspeed (IAS) at which the aeroplane should be flown for optimum range.

a lower efficiency of the engine with an increase in aeroplane speed.

an increase in the engine rpm for take-off.

Q25. During the ram recovery process in a gas turbine engine subsonic intake, the:

flow velocity decreases.

total temperature increases.

static temperature decreases.

total pressure increases.

Q26. The purpose of the blow-in-doors at the Air Inlet is to:

provide the engine with additional air at high power settings at cruising speed

provide the engine with additional air at high power settings and low air speeds

feed cooling air to the engine cowling

serve to increase the relative velocity at the first compressor stage

Submit The Test

← Previous Quiz Next Quiz →

Results

Q1. The most unfavourable conditions for adequate inlet air flow of a turbofan engine are:

Q2. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The speed decreases in flow direction.II. The total pressure remains constant in flow direction.

Q3. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The dynamic pressure increases in flow direction.II. The static temperature increases in flow direction.

Q4. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The speed remains constant in flow direction.II. The total pressure remains constant in flow direction.

Q5. Which statement is correct about the flow in a divergent jet engine inlet?I. The static pressure remains constant in flow direction.II. The total temperature remains constant in flow direction.

Q6. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The speed decreases in flow direction.II. The total pressure decreases in flow direction.

Q7. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The static pressure increases in flow direction.II. The total temperature increases in flow direction.

Q8. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The dynamic pressure decreases in flow direction.II. The static temperature decreases in flow direction.

Q9. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The speed remains constant in flow direction.II. The total pressure decreases in flow direction.

Q10. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The static pressure remains constant in flow direction.II. The total temperature decreases in flow direction.

Q11. Which statement is correct about the flow in a divergent jet engine inlet?I. The speed increases in flow direction.II. The total pressure increases in flow direction.

Q12. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The static pressure decreases in flow direction.II. The total temperature increases in flow direction.

Q13. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The dynamic pressure increases in flow direction.II. The static temperature decreases in flow direction.

Q14. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The dynamic pressure remains constant in flow direction.II. The static temperature remains constant in flow direction.

Q15. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The static pressure increases in flow direction.II. The total temperature remains constant in flow direction.

Q16. Which of the following statements is correct about the flow in a divergent (subsonic) gas turbine engine intake?I. The dynamic pressure decreases in flow direction.II. The static temperature increases in flow direction.

Q17. Which of the following parameters remains constant in a divergent (subsonic) gas turbine engine intake?

Q18. In a subsonic convergent duct the:

Q19. The internal geometry of a turbofan intake for a subsonic commercial aeroplane is:

Q20. For a subsonic airflow, in a divergent duct the:

Q21. For a subsonic airflow, air passing through a divergent duct:

Q22. For a subsonic airflow, air passing through a divergent duct:

Q23. One of the functions of a gas turbine engine subsonic intake is to:

Q24. The effect of ram air on the operation of a gas turbine engine is:

Q25. During the ram recovery process in a gas turbine engine subsonic intake, the:

Q26. The purpose of the blow-in-doors at the Air Inlet is to:

Thank You