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1314 S1 Exam.pdf - SINGAPORE POLYTECHNIC ET0048/ET0163...

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SINGAPORE POLYTECHNIC ET0048/ET0163 2013/2014_S1 Page 1 of 13 2013/2014 SEMESTER ONE EXAMINATION Diploma in Electrical and Electronic Engineering 3 rd Year FT Diploma in Electrical and Electronic Engineering 4 th Year EO Diploma in Mechatronics and Robotics 3rd Year FT SYSTEMS AND CONTROL Time Allowed: 2 Hours Instructions to candidates: 1. The examination rules set out on the last page of the answer booklet are to be complied with. 2. This paper consists of TWO sections: Section A - 6 short questions, 10 marks each. Section B - 2 long questions, 20 marks each. 3. ALL questions are COMPULSORY . 4. All questions are to be answered in the answer booklet. 5. The examination paper consists of a total of 6 pages. 6. A Laplace transform table, Z-transform table and formula for dynamic system performance are given at the last two pages.
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SINGAPORE POLYTECHNIC ET0048/ET0163 2013/2014_S1 Page 2 of 13 SECTION A Answer all questions. Each question carries 10 marks. A1. An aircraft-instrumentation landing system is designed for the safe landing of aircrafts during adverse weather conditions. The ground-based instrumentation system collects the various flight data, such as position, velocity and altitude of the aircraft. These data are transmitted to a computer on the aircraft from the flight control tower at the airport. This computer acts as a controller which processes the real-time data received from the flight control tower and generates proper control signals. These control signals actuate various mechanisms in the aircrafts to continuously adjust the real-time flight data to enable the aircrafts to land safely on the airport tarmac.
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