Q1. Engine temperature limitations of a gas turbine engine are usually imposed due to temperature limitations on the:
Q2. The primary reason for a limitation being imposed on the temperature of gas flow in a gas turbine is to:
Q3. Engine temperature limitations of a gas turbine engine are usually imposed due to temperature limitations on the:
Q4. Vibration sensors are used in a gas turbine engine to indicate:
Q5. At a constant fuel flow, if engine compressor air is bled off for engine anti-icing or a similar system, the turbine temperature:
Q6. The term used to describe a permanent and cumulative deformation of the turbine blades in a gas turbine engine is:
Q7. In a gas turbine engine the creep phenomenon is the most severe in the:
Q8. Creep in a gas turbine engine is:
Q9. Creep of turbine blades is caused by:
Q10. One reason to fit a tip shroud to a turbine blade is to:
Q11. A free turbine in a gas turbine engine is a turbine:
Q12. The greatest risk created by a free turbine overspeed is:
Q13. Turbine blade stages may be classed as either “impulse” or “reaction”. In an impulse blade section the pressure (i)… across the nozzle guide vanes and (ii)….. across the rotor blades:
Q14. Turbine blade stages may be classed as either ” impulse” or ” reaction” . In an impulse blade section :
Q15. Exhaust gas temperature sensing is usually taken:
Q16. In a gas turbine engine, the maximum gas temperature is attained:
Q17. In a free turbine engine:
Q18. In a free turbine engine, the energy delivered by the free turbine stages:
Q19. In the stator of a turbine, the gas velocity V and static pressure Ps vary as follows:
Q20. Which of these statements about an impulse turbine are correct or incorrect?I. The pressure drops across the nozzle guide vanes.II. The pressure remains constant across the rotor blades.
Q21. Which of these statements about an impulse turbine are correct or incorrect?I. The pressure drops across the nozzle guide vanes.II. The pressure rises across the rotor blades.
Q22. Which of these statements about an impulse turbine are correct or incorrect?I. The pressure rises across the nozzle guide vanes.II. The pressure rises across the rotor blades.
Q23. Which of these statements about an impulse turbine are correct or incorrect?I. The pressure remains constant across the nozzle guide vanes.II. The pressure rises across the rotor blades.
Q24. Which of these statements about an impulse turbine are correct or incorrect?I. The pressure rises across the nozzle guide vanes.II. The pressure drops across the rotor blades.
Q25. Which of these statements about an impulse turbine are correct or incorrect?I. The pressure remains constant across the nozzle guide vanes.II. The pressure drops across the rotor blades.
Q26. Which of these statements about an impulse turbine are correct or incorrect?I. The pressure drops across the nozzle guide vanes.II. The pressure drops across the rotor blades.
Q27. Which of these statements about an impulse turbine are correct or incorrect?I. The pressure rises across the nozzle guide vanes.II. The pressure remains constant across the rotor blades.
Q28. Which of these statements about an impulse turbine are correct or incorrect?I. The pressure remains constant across the nozzle guide vanes.II. The pressure remains constant across the rotor blades.
Q29. If a twin spool gas turbine engine is controlled by a conventional N2 control system, rupture of the LP shaft may result in:
Q30. Static gas temperature decrease when flowing at a subsonic speed through a jet engine exhaust nozzle because the: