Power Generator

11. A machine with field excitation by botrh shunt and series windings

1. complex machine
2. compound machine
3. universal machine
4. shunt/ series machine

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12. A method of converting chemical energy into electric energy by dissolving two different conducting materials in an electrolyte

1. Battery
2. Cell
3. Voltaic cell
4. Charging

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13. A motor takes a large current at starting because

1. the armature resistance is high
2. back emf is low
3. back emf is high
4. shunt field is producing weak field

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14. A separately excited dc generator is not used because

1. it is costly
2. a separate dc source is required for field circuit
3. voltage drops considerably with load
4. it is bulky

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15. A series motor designed to operate on dc or ac

1. Shunt motor
2. Series motor
3. Universal motor
4. Compound motor

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16. A series motor will over speed when

1. the load is increased
2. the armature circuit is open
3. the field id opened
4. load is removed

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17. A small 9V battery might be used to provide power to

1. an electric stove
2. an electronic calculator
3. a personal computer
4. a radio transmitter

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18. A stand alone solar power system

1. relies on the electric utility at night
2. uses solar panels and batteries
3. requires the use of dry cells
4. need a full wave rectifier

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19. A storage battery in which the electrodes are grids of lead containing lead oxides that changes in composition during charging and discharging and the electrolyte is dilute sulfuric acid

1. Leclanche battery
2. Nickel cadmium battery
3. Lead and battery
4. Faure storage battery

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20. A storage battery in which the plates consist if lead antimony supporting grids covered with a lead oxide paste immersed in weak sulfuric acid

1. Leclanche cell
2. primary battery
3. secondary battery
4. Faure storage battery

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