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C-40A Specific AE
EAWS
Question | Answer |
---|---|
What are the safety precautions that have to be followed when working with electrical systems? | Before working on electrical systems always pull and tag-out circuit breakers and if someone does happen to come in contact with a live electrical conductor DO NOT touch the equipment, cord or person, but shut off power first! |
Define Voltage. | Voltage is the electrical force which causes a current to flow in a circuit. It is measured in Volts (V). |
Define Electrical Current. | Electrical current is the movement of electrical charge through the electronic circuit. It is measured in Amperes (AMPS, A). |
Define Resistance. | Resistance causes an opposition to the flow of electricity in a circuit. It controls the amount of Voltage and/or Amperage in a circuit. It is measured in Ohms (Ω). |
Define Hertz. | Hertz is an electrical unit of frequency equal to one cycle per second. Cycles per second are measured in Hertz (Hz). |
What is the bus in an electrical system? | A bus is a distribution point in an aircraft electrical system to which the batteries and the generators are connected. |
Where are the main and auxiliary batteries located? | In the E/E compartment. The auxiliary battery is fwd of the main battery. |
How much electric power does the IDG produce? | The IDG makes three-phase, 115/200V AC, 400Hz. |
What component is used to create DC power from the normal AC source and where is it located? | Transformer-rectifier Units (TRU). They are located in the E/E compartment. |
What are the two functions of the main battery? | To supply power to critical airplane systems (AC and DC standby buses) when normal power siurces are not available, and as a back up power supply for the AC system control and protection power supply for APU start. |
What is the purpose of the auxiliary battery? | Helps the main battery supply power to critical airplane systems (AC and DC standby buses). |
What is the purpose of position lights? | to provide aircraft location informationin three manners: a. airplane position b. direction c. attitude |
Where are the position lights located? | In the tip of each wing. Red-port, green-stbd. |
Where are the fixed landing lights and the retractable landing lights located? | Fixed landing lights-in the root of each wing Retractable landing lights-below the fixed landing lights on the airplane underbelly |
Where is the taxi and runway turnoff light located? | The taxi light is on the front of the NLG strut and the runway turnoff light is on the root of the fwd wing. |
What is the purpose of anti-collision lights and where are they located? | They make the airplane easier to be seen in the air and on the ground. One red anti-collision light each on the top and the bottom of the fuselage and three white anti-collision lights, one on each wing tip and one on the tail cone. |