Multiple Choice QuestionsWhich one of the following pairs is not correctly matched ?
Microscale - Turbulence
Planetary scale - Waves in the westerlies
Mesoscale - Tornadoes
Syneptiscale - Valley and mountain winds
Which one of the following statements about polar jet stream is not true ?
It moves northwards during summer.
It supplies energy to the circulation of surface storms.
Its velocity is greater during the summer.
Its location roughly coincides with that of the polar front.
Supercooled water is water which is -
Produced from dry ice.
A special form of ice
Still liquid at temperature below 0°.
Partly liquid and partly solid.
A place located at a higher altitude generally experiences _________ than a low elevation place in an adjoining valley.
a greater daily temperature range.
a lower annual mean temperature.
a lower daily temperature range.
both a greater daily temperature range and lower annual mean temperature.
ASSERTION (A) : Hurricanes cannot develop along the equatorial region.
REASON (R) : Coriolis force is at maximum over the equator.
Both (A) and (R) are true , and (R) is the correct explanation of (A).
Both (A) and (R) are true , but (R) is not the correct explanation of (A).
(A) is true , but (R) is false.
(A) is false , but (R) is true.
The actual amount of water vapour in a given quantity of air is greatest for which of the following temperature - relative humidity combinations ?
40° C - 100%
25° C - 100%
0° C - 100%
30° C - 50%
What happens when Chinook wind is drawn down the leeward slopes of the mountain range ?
The saturation vapour pressure increase.
The relative humidity increases.
Both A and B are correct.
Both A and B are wrong.
| LIST I | LIST II |
| (a) Absolute Humidity | (1) The ratio of weight of water vapour to the weight of per unit volume of dry air. |
| (b) Relative Humidity | (2) Mass of water vapour in grams contained in one kg of airincluding water vapour. |
| (c) Specific Humidity | (3) The ratio of the amount of water vapour actually present in the air having definite volume and temperature to its maximum amount to its maximum amount air can. |
| (d) Mixing Ratio | (4)The total weight of moisture content per unit volume of air. |
a-1 , b-2 , c-3 , d-4
a-4 , b-3 , c-2 ,d-1
a-4 , b-3 , c-2 , d-1
a-4 , b-2 , c-1 , d-3
Distribution of monthly rainfall of a particular place for the month of June 2010 is given below :
| RAINFALL (cms) | 10 - 20 | 20 -30 | 30 - 40 |
| No. of days | 6 | 20 | 4 |
Which one of the following calculated mean values of the distribution is correct ?
21.50
22.33
24.33
25.50
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