센테니얼 컬리지 중간 족보.docx

1. Diffuser is located at , Purpose is _ .
- Compressor exit, to give high pressure prior to combustion chamber

2. According to Brayton cycle, what does occur within Combustion chamber
- Pressure drop 3%

3. The N1 section in a twin-spool turbo-fan engine
- Includes the front stage fan

4. The HP turbines in a twin-spool jet engine
- Drives the N2 compressor

5. Sir Isaac Newton states second law as
- The acceleration is directly proportional to the force and inversely proportional to the mass.


6. The Pratt&Whitney JT8D engine compressor anti-stall system, best describes
(81% 틀린 문제)
- Compressor P across N1 comp to protect against N2 comp stalls
- Uses Ps4 as muscle/actuating air to reposition the bleed valves
(시험에선 Ps3로 나옴)

7. The Pratt&Whitney JT8D engine compressor anti-stall uses
- Pt2 and Ps3 sensing pressure to ctrl VBV’s

8. If the venturi vent was restricted, what effect would this have on the against anti-stall system
- Bleed valve …