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What is AC Generator? Modern AC sources are, almost exclusively, induction generators, where the principle of work is based on electromagnetic induction. In this case, the electromagnetic current is obtained by rotating the conductors in the magnetic field. Today, almost all alternating current generators are three-phase. This means that in their movable part, which is called a rotor, they have three separate coils, placed between each other at an angle of 120◦, in which three EMC are phase-shifted precisely by 120◦, or in time sequence for a third period. Coils are usually indicated by the letters R, S and T, each of which defines a single phase. Depending on the binding of these coils, the transmission of electricity from the generator to the consumer is carried out with 4 or with 3 conductors. If at the beginnings of all the coils are bound at one point (the so-called zero point), then we are talking about star connection. In that case, the other ends of each coil, are connected wit...
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Taxiing Aircraft

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Taxiing Aircraft As a general rule, only rated pilots and qualified airframe and powerplant (A&P) technicians are authorized to start, run up, and taxi aircraft. All taxiing operations are performed in accordance with applicable local regulations. Figure 1 contains the standard taxi light signals used by control towers to control and expedite the taxiing of aircraft. The following section provides detailed instructions on taxi signals and related taxi instructions.  Lights  Meaning Flashing green  Cleared to taxi Steady red  Stop Flashing red  Taxi clear of runway in use Flashing white  Return to starting point Alternating red and green  Exercise extreme caution Figure 1. Standard taxi light signals Taxi Signals Many ground accidents have occurred as a result of improper technique in taxiing aircraft. Although the pilot is ultimately responsible for the aircraft until the engine is stopped, a taxi signalman can assist the pilot around the flight li...
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MODULE 3 CHAPTERR 3 QUIZ 1

03. Electrical Terminology .................................. Question Number. 1. If a photon radiating into an electronic device causes the production of an electron/hole pair, the device is known as a. Option A. light emitting diode. Option B. laser diode. Option C. photodiode. Correct Answer is. photodiode. Explanation. NIL .................................. Question Number. 2. Faraday's Law States that. Option A. the magnitude of the EMF is indirectly proportional to the rate of change of flux. Option B. the magnitude of the EMF is directly proportional to the magnetic flux. Option C. the magnitude of the EMF is directly proportional to the rate of change of flux. Correct Answer is. the magnitude of the EMF is directly proportional to the rate of change of flux. Explanation. NIL .................................. Question Number. 3. Which of the following is 1 Amp?. Option A. 1000 mA. ... Option B. 1000 kA. Option C. 1000 μA. Correct Answer is. 1000 mA. Explanation. NIL ....
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