El-nino, La-nina Cyclones

Why the term oscillation is accompanied with El Nino and La Nina?

• Because its fluctuations are perfectly periodic

• Because its fluctuations are not perfectly periodic

• Because they recur in the form of regular cycles in climate parameters

• Because it is cool phase of ENSO with sea surface temperature in the eastern Pacific below average and air pressures high in the eastern and low in western Pacific.

Which of the following is the cold event?

• El Nino

• Northern Oscillation

• La Nina

• Southern Oscillation

What happen to the cyclones during El Nino episode?

• Wind speed is slow

• Wind speed had greater tendency to trigger intense tropical cyclones

• Both A and B

• Neither A nor B

Which among the following is true regarding cyclones?

• rotate clockwise in northern hemisphere and anticlockwise in southern hemisphere

• rotate anticlockwise in northern hemisphere and anticlockwise in southern hemisphere

• rotate anticlockwise in northern hemisphere and clockwise in southern hemisphere

• rotate clockwise in northern hemisphere and clockwise in southern hemisphere

Which of the following statement (s) is/are correct about El Nino?

• The term El Niño translates from Spanish as 'the boy-child'

• Peruvian fishermen originally used the term to describe the appearance, around Christmas, of a warm ocean current off the South American coast.

• It is now the commonly accepted term to describe the warming of the central and eastern tropical Pacific Ocean.

• All of the above

A low pressure area in the atmosphere in which winds spiral inwards is

• Anticyclone

• Cyclone

• Tsunami

• Front

Which of the following statement is/are true for cyclones?

• Cyclones are centres of low pressure surrounded by closed isobars and having increasing pressure outwards.

• Cyclones range in shape from circulars, elliptical to 'V' shaped.

• Cyclones have an immense influence on the climate and weather.

• All of the above

How many types of cyclones are there?

• 2

• 3

• 4

• 5

Which term for Cyclone is applied in the China Sea and the Pacific Ocean?

• Hurricane

• Typhoon

• Tornadoes

• None of the above

Which term is applied for the cyclone distributed in the Indian Ocean?

• Hurricanes

• Typhoons

• Tornadoes

• Tropical Cyclone