i want a ppt n pdf on telephone exchange,MSS and TAS. ....etc

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i want to mss , mrs tas $ac plant ppt.so you should give me a ppt in short in time to make the ppt carefully. ....etc

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TELEPHONE EXCHANGE



A Simple Telephone

Surprisingly, a telephone is one of the simplest devices you have in your house. It is so simple because the telephone connection to your house has not changed in nearly a century. If you have an antique phone from the 1920s, you could connect it to the wall jack in your house and it would work fine!
The very simplest working telephone would look like this inside:

power supply:

-48 V dc is used in telephone exchange:-[/b ....etc

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To get full information or details of telephone exchange office please have a look on the pages

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i want training report on civil training from pwd
....etc

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1. o TYPE Departmental undertaking of the ministry of Railways ,Government of Indiao INDUSTRY Railway & Locomotiveo FOUNDED 16 April 1853o HEADQUARTERS New Delhi , Delhi , Indiao KEY PEOPLE Mamata banerjee (ministry of railway) vivek sahai( chairman, railway board)o SERVICE Rail transporto REVENUE Rs 88,355 crore(US$ 202.56 million)(2009-10)o NET INCOME Rs. 951 crore(US$ 202.56 million) (2009-10)o EMPLOYEES 1,600,000(2009)o PARENT Ministry of Railway, Government of Indiao DIVISION 16 Railway Zones(excluding konkan Railway)o WEBSITE indianrailwa ....etc

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About DLW (DIESEL LOCOMOTIVE WORKS)

It is a production unit owned by Indian Railways, for which it manufactures diesel-electric locomotive and its spares part.
It was established in collaboration with M\s ALCO (American Locomotive Company), USA.
Founded in 1961, the DLW rolled out its first locomotive three year later, on January 3, 1964.
It has evolved diesel-electric locomotive manufacturing plant, capable of building all components of the locomotive in-house, including the engine, super structure, and fabricated bogies and under frames ....etc

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Telephone exchange

Historic perspective
Tivadar Pusk s, inventor of the telephone exchange.
Exchange in Miskolc, Hungary
Prior to the telephone, electrical switches were used to switch telegraph lines. One of the first people to build a telephone exchange was Hungarian Tivadar Pusk s in 1877 while he was working for Thomas Edison. George W. Coy designed and built the first commercial telephone exchange which opened in New Haven, Connecticut in January, 1878. The switchboard was built from carriage bolts, ....etc

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DLW Diesel Locomotive Works (DLW) is a production unit under the Ministry of Railways. This facility was created in collaboration with American Locomotive Company (ALCO), USA. UU. In 1961 and the first locomotive was launched in 1964. This unit produces electronic diesel locomotives and DG sets for Indian railroads and other customers in India and abroad. Subsequently, a 4000 HP locomotive technology transfer contract was signed with AC / AC (GT 46 MAC) / passenger alternating current (GT 46 PAC) and 710 engine family with the GENERL MOTORS USA ....etc

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