1970

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JUNIOR PATROL OFFICER PAST PAPERS PPSC 2017   Tarbela Dam is on ______ River. Indus Jhelum Ravi None of these Who is Chief Minister of Khyber Pakhtoon Khawah (KPK)? Pavez Khatak Imran Khan Ameer Haidar Khan Hoti None of these…

Inventions and Inventors

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Inventions and Inventors A Air Brake :  George Westinghouse, U.S.A. 1911. Air Conditioning :  Willis Carrier, U.S.A. 1911. Airplane :  engine-powered, Wilbur and Orville Wright, U.S.A., 1903. Airship : Henri Giffard, France, 1852; Ferdin von Zeppelin, Germany, 1900. Antibiotics :…