Test Preparation on IAS Mock Test 6

Pandavleni Caves

Sir Benegal Narsing Rau, CIE, (26 February 1887

Soon after the Lok Sabha election is over, the Speaker and the Deputy Speaker are elected by the members of the House by majority vote. Normally, the post of the Speaker goes to the ruling party. Difficulty arises if the ruling party has no absolute majority in the Lok Sabha or if there is a coalition government at the centre. The first Speaker of the Lok Sabha was G.V. Mavalankar.

The disease is generally managed by seed treatment with organomercurials and other fungicides such as benomyl, thiabendazole, carboxin, pencycuron, azoxystrobin or fenpiclonil

Colin Luther Powell is an American statesman and a retired four-star general in theUnited States Army. He was the 65th United States Secretary of State, serving under U.S. President George W. Bushfrom 2001 to 2005, the first African American to serve in that position After the Vietnam War Powell served a White House fellowship, a highly selective and prestigious position, under President Richard Nixon from 1972 to 1973. In his autobiography, My American Journey, Powell named several officers he served under who inspired and mentored him. As alieutenant colonel serving in South Korea, Powell was very close to General Henry "Gunfighter" Emerson. Powell said he regarded Emerson as one of the most caring officers he ever met. Emerson insisted his troops train at night to fight a possible North Korean attack, and made them repeatedly watch the television film Brian's Song to promote racial harmony. Powell always professed that what set Emerson apart, was his great love of his soldiers and concern for their welfare. After a race riot occurred, where African American soldiers almost killed a Caucasian officer, Powell was charged by Emerson to crackdown on black militants; Powell's efforts led to the discharge of one soldier, and other efforts to reduce racial tensions.

Superconductivity is a phenomenon of exactly zero electrical resistance and expulsion of magnetic fields occurring in certain materials when cooled below a characteristic critical temperature. It was discovered by Dutch physicist Heike Kamerlingh Onnes on April 8, 1911 in Leiden. Like ferromagnetism and atomic spectral lines, superconductivity is a quantum mechanical phenomenon. It is characterized by the Meissner effect, the complete ejection of magnetic field lines from the interior of the superconductor as it transitions into the superconducting state. The occurrence of the Meissner effect indicates that superconductivity cannot be understood simply as the idealization of perfect conductivity in classical physics. The electrical resistivity of a metallic conductor decreases gradually as temperature is lowered. In ordinary conductors, such as copper or silver, this decrease is limited by impurities and other defects. Even near absolute zero, a real sample of a normal conductor shows some resistance. In a superconductor, the resistance drops abruptly to zero when the material is cooled below its critical temperature. An electric current flowing through a loop of superconducting wire can persist indefinitely with no power source.