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- 04
- 2011/JAN/01
- 2011/JUL/01
- 2011/AUG/01
- 2011/NOV/06
- 2012/FEB/02
- 2012/JUN/02
- 2012/AUG/02
- 2013/JUN/02
- 2013/AUG/04
- 2013/SEP/02
- 2013/DEC/01
- 2014/MAR/01
- 2014/AUG/02
- 2014/OCT/02
- 2014/DEC/02
- 2015/AUG/01
- 2017/FEB/01
- 2017/DEC/01
- 2016/DEC/02
- 2016/SEP/02
- 2022/DEC/01
- 2016/MAR/01
- 2014/JAN/01
- 2007/JUN/**
- 2023/FEB/01
- 2023/APR/04
- 2023/OCT/01
- 2024/APR/02
- 2024/SEP/01
- 05
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- 07
Q9. (a) Describe how thrust power is determined. (6)
(b) The following information relates to a model propeller of 400mm pitch:
Rev/Min
400
450
500
550
600
Thrust N
175
260
365
480
610
Torque Nm
16.8
22.4
28.2
34.3
40.5
(i) Plot curves of thrust and torque against rev/min
(ii) When the speed of advance of the model is 150 m / min and slip 0.20, calculate the efficiency.
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Question Set: 2013/AUG (MEO Class II : NAVAL)
Total Questions: 10