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Showing posts from July, 2018

Today's Current Affairs: 11th July 2018

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Important Dates 1.  World Population Day being observed today The  World Population Day  is observed across the world every year on  11th July  to increase the awareness of the people towards the  worldwide population issues . The theme of this year is ‘ Family Planning is a Human Right ’. This year marks the 50th anniversary of the 1968 International Conference on Human Rights, where family planning was, for the first time, globally affirmed to be a human right. Note: In 1989, the Governing Council of the United Nations Development Programme recommended 11th July as World Population Day to draw attention to the urgency and importance of population issues. National Affairs 2.  MPC to continue with the 3-day format for monetary policy meet The Monetary Policy Committee has decided to continue the practice of a three-day meeting format, which decides on the key interest rate. In October 2016, the six-member MPC headed by RBI Gover...

Working Principle of Lathe Machine

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LATHE MACHINE Working Principle : The lathe is a machine tool which holds the workpiece between two rigid and strong supports called centers or in a chuck or face plate which revolves. The cutting tool is rigidly held and supported in a tool post which is fed against the revolving work. The normal cutting operations are performed with the cutting tool fed either parallel or at right angles to the axis of the work. The cutting tool may also be fed at an angle relative to the axis of work for machining tapers and angles. Construction : The main parts of the lathe are the bed, headstock, quick changing gear box, carriage and tailstock. 1.  Bed : The bed is a heavy, rugged casting in which are mounted the working parts of the lathe. It carries the headstock and tail stock for supporting the workpiece and provides a base for the movement of carriage assembly which carries the tool. 2.  Legs : The legs carry the entire load of machine and are firmly ...