Tuesday, 24 March 2015

19-mar


NGT order on cleanliness of Railways
1)      The National Green Tribunal passed a string of directions to clear the Railways of the filth which has earned it the tag of being the “biggest open toilet”.

2)      Polluter Pays principle : The Tribunal empowered the Railways to impose a fine of Rs. 5,000 on anyone found littering or defecating on tracks or platforms under the Polluter Pays principle.

3)      Those residing along the tracks and disposing waste on railway property would also be fined.

4)      Also, if the waste is found lying in front of any house adjoining the tracks, the fine would be recovered from the occupants of the property.

5)      The NGT also directed the three municipal corporations to place dustbins in the 46 slum clusters along the railway property.

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Automatic Sliding Door trains in Mumbai sub-urbans

1)      After two years of intensive tests and trials, Mumbai suburban trains finally got its first automatic sliding door trains.

2)      Termed as the lifeline of maximum city, the open-door trains have over the years led to many casualties.

3)      Advantages : The new-age Bombadier-powered suburban rakes with electrical fittings are expected to prevent people falling off.

4)      It is incorporated into the regular western suburban services and it has “improved and comfortable features” and a maximum speed of 100 kmph.

5)      Facts :

                                i.            The local trains ferry 7.5 million commuters daily — roughly 30 per cent of the daily national rail traffic.

                              ii.            In the past decade, 37,383 persons were killed in local train accidents.

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Astra Missile

1)      A critical high-g (27 g) manoeuvring capability of the indigenously developed Beyond Visual Range air-to-air missile, Astra, has been proved with recent test.

2)      The missile was launched from Sukhoi-30 MkI fighter aircraft against a moving simulated target from Chandipur, Odisha.

3)      The anti-aircraft missile’s high-g manoeuvrability from a lower altitude of one km was one of the critical performance criteria and it was proved in the flight test.

4)      The missile’s structures, guidance, control and aerodynamics were proved for high-g manoeuvre.

5)      Specifications of the missile :

                                i.            The smallest of the missiles developed by DRDO

                              ii.            3.8-metre long

                            iii.             uses solid propellant

                             iv.             can carry a warhead weighing 15 kg

6)      Specialty :

                                i.            The state-of-the-art missile can intercept and destroy enemy aircraft at supersonic speeds in tail-chase mode and at very long range in head-on mode.

                              ii.            The missile possesses high Single-Shot Kill Probability (SSKP)

                            iii.            It has ECCM (electronic counter-counter measures) features

                             iv.            smokeless propulsion.

                               v.            It can be launched from different altitudes and has the capability to reach up to 110 km when fired from an altitude of 15 km, 44 km when launched from an altitude of eight km and 21 km when fired from sea level.

7)      DRDO plan to equip the Tejas Light Combat Aircraft (LCA) with Astra.

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