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Questions for KW ENGINE MONITORING

Answer the following questions

1. Turbine outlet pressure is detected by?
2. The disadvantages of a single-phase A.C. generator tachometer are: 1. The pressure of spurious signals due to D.C. generator commutator. 2. The importance of line resistance on the information value. 3. The influence of temperature on the techometer information. The combination regrouping all the correct statements is?
3. A millivolmeter measuring the electromotive force between the "hot junction " and the "cold junction" of a thermocouple can be directly gradusted in temperature values provided that the temperature of the?
4. The probe used to measure the air intake pressure of a gas turbine engined powerplant is?
5. The pressure probe used to measure the pressure of a low pressure fuel pump is?
6. Vibration sensors on a turbofan engine are typically located?
7. A synchroscope is used on aircraft to?
8. Vibration is measured using? 1. Accelerometers. 2. Pieza crystals. 3. Inductive coils. 4. Capacitive elements. 5. Strain gauges.
9. Cylinder head temperature on a piston engine is measured using a _________ on the ________?
10. On an aeroplane equipped with a constant speed propeller, the RPM indicator enables?
11. If the EPR gauge over reads during the take-off run?
12. Where is EGT measured?
13. The operating principle of an "electronic" tachometer is to measure the?
14. The squirrel cage tachometer employs?
15. Thermocouples are?
16. The squirrel cage motor in a tacho-Indicator?
17. What does the amber are on an EGT gauge indicate?
18. The transmitter of RPM indicator may consist of: 1. A magnetic senor supplying an inducted AC voltage. 2. A DC generator supplying a DC voltage. 3. A single-phase AC generator supplying an AC voltage. 4. A three-phase AC generator supplying a three-phase voltage. The combination of correct statements is?
19. The operating principle of the "Induction" type of tachometer is to measure the?
20. Temperature is measured in aircraft engine by means of? 1. Thermocouples, 2. Mercury. 3. Resistive elements. 4. Capacitive elements.
21. A synchroscope is used to?
22. Which of the following is used to measure temperature? 1. The seebeck effect. 2. the variation of electrical resistance with changes in temperature. 3. The variation of capacitance with changes in temperature. 4. Thermal expansion of liquids and solids.
23. Arrange the following sensors in increasing order of the pressures they would be used to sense? 1. Capsule, 2. Bellows. 3. Bourden tube.
24. Jet engine exhaust gas temperature is measured using?
25. The advantage of a D.C. generator tachometer are: 1. Easy transmission of the information. 2. Independence of the information relative to the airborne electrical power supply. 3. Freedom from any spurious current due to the commutator. The combination regrouping all the correct statements is?
26. A full Authority Digital Engine Control (FADEC) has the following functions : 1. Flow regulation (fuel, decelerations and accelerations monitoring). 2. Automatic starting sequence. 3. Transmissions of engine data to the pilot's instruments. 4. Thrust management and protection of operation limits. 5. Monitoring of the thrust reversers. The combination regrouping all the correct statement is?
27. The green sector of the arc of a temperature gauge corresponds to?
28. Typical vibration sensors include? 1. Inductive coils. 2. Phonic wheels.3. Magnetometers. 4. Piezo crystals.
29. The sensors used to measure the exhaust gas temperature on an aircraft equipped with turbojets are?
30. The electronic tachometer sensor is composed of?
31. A millimetric voltmeter measuring the PD across the hot and cold junctions of a thermocouple, can be calibrated to indicate temperature by?
32. The measurement of the turbine temperature or of the EGT (Exhaust Gas Temperature) is carried out at the?
33. A capsule stack would be used to measure ___________ pressure when a ________ mechanical output for a given pressure change was required?
34. If one of the probes in a typical gas turbine engine EGT system becomes defective, the indications would be?
35. The temperature measured by the CHT (Cylinder Head temperature) probe is The?
36. If a manifold pressure gauge consistently registers atmospheric pressure, the cause is probably?
37. A vibration monitoring system used ______ to measure ______ filters out unwanted _______, then indicates ________, to the pilot?
38. A system which measures both torque and engine RPM employs?
39. A cylinder head temperature gauge measures?
40. An engine vibration monitoring system employs?
41. Torque can be determined by measuring the?
42. Different pressure sensor are used according to the Intensity of the pressure measured (low, medium or high). Classify the following sensors by order of increasing pressure for which they are suitable? 1. Bellows type. 2. Bourdon tube type. 3. Aneroid capsule type.
43. In an engine vibration monitoring system for a turbojet any vibration produced by the engine is?
44. A vibration indicator receives a signal from different sensors
45. The main advantage of a ratiometer-type temperature Indicator is that it?
46. If a remote sensing pressure measurement system uses a ratiometer rather than an ammeter as its indicator, it will be?
47. A vibration meter indicates?
48. What does the vibration measuring system indicate to the pilot?
49. The Engine Pressure Ratio (EPR) is computed by?
50. The speed of rotation of the motor in a tacho-indicator is?