Important World Geography MCQs

Important Geography MCQs for General Knowledge

1. Which gas in atmosphere absorbs ultraviolet rays?
(a) methane
(b) nitrogen
(c) ozone ✓
(d) helium
 
2. Fall in air temperature with increasing elevation is known as
(a) thermal anomaly
(b) thermal reduction
(c) temperature fall
(d) lapse rate ✓
    
3. Where is the doldrums belt located?
(a) near the equator ✓
(b) near the polar areas
(c) on the Tropic of Cancer
(d) on the Tropic of Capricorn
 
4. What is the name given to winds blowing from subtropical high pressure regions, to the equator?
(a) Westerlies
(b) tropical easterlies ✓
(c) high latitude easterlies
(d) doldrums
 
5. Horse latitudes" is the term applied to the
(a) 00-50 N and S latitudes
(b) polar circles
(c) 300-400 N and S latitudes ✓
(d) 400-600 N and S latitudes
 
6. The stratosphere is said to be ideal for flying jet aircraft. This is because
(a) this layer is rich in ozone which reduces fuel consumption
(b) the temperature is constant and ideal for aircraft engine efficiency
(c) this layer is out of the firing range of anti-aircraft guns
(d) of the absence of clouds and other weather phenomena ✓
 
7. The velocity of winds is governed by
(a) pressure gradient ✓
(b) Farrel's law
(c) rotation of the earth
(d) temperature
 
8. Over which region is the temperature the highest near the tropopause?
(a) around the equator
(b) over the Arctic region
(c) near the Tropic of Capricorn ✓
(d) near the Tropic of Cancer
 
9. Name the instrument use for measuring humidity.
(a) barometer
(b) thermometer
(c) hygrometer ✓
(d) hydrometer
 
10. Which of the following are not a planetary wind?
(a) easterlies
(b) westerlies
(c) drainage winds ✓
(d) trade winds

11. How much pressure is exerted by the atmosphere at sea level?
(a) 1 kg/cm2 ✓
(b) 1 pound/cm2
(c) 5 kg/cm2
(d) 2 kg/cm2
 
12. The water content in the atmosphere
(a) is not dependent on temperature
(b) increases as temperature increase ✓
(c) remains unchanged with change in temperature
(d) cannot be measured
 
13. What will happen if the temperature of water is lowered from 80C to 30C?
(a) water will freeze
(b) water will not change in volume
(c) the volume will first increase, then decrease
(d) the volume will first decrease, then increase ✓
 
14. Which is the shortest route from Moscow to San Fransisco?
(a) via Canada
(b) over land
(c) over the South Pole
(d) over the North Pole ✓
 
15. Which one of the following is a great circle?
(a) tropic of Cancer
(b) tropic of Capricorn
(c) equator ✓
(d) Arctic Circle
 
16. In which region can be phenomenon of midnight sun be observed?
(a) in the tropical zone
(b) in warm temperature regions
(c) in the Arctic and Antarctic regions ✓
(d) anywhere at the time of solar eclipse
 
17. Farrel's law is concerned with the
(a) direction of winds ✓
(b) velocity of winds
(c) intensity of winds
(d) none of these
 
18. Blizzards are characteristics of __________ region?
(a) equatorial
(b) tropical
(c) antarctic ✓
(d) Thtemperate

19. What is the importance of ozone in the atmosphere?
(a) it provides protection against ultraviolet radiation ✓
(b) it provides condensation effect on earth
(c) it creates the greenhouse effect on earth
(d) it helps scatter the blue light
 
20. What is a cyclone?
(a) a low pressure system with clockwise winds in the northern hemisphere
(b) a high pressure system with anti-clockwise winds in the northern hemisphere
(c) a low pressure system with anti-clockwise winds in the northern hemisphere ✓
(d) a high pressure system with clockwise winds in the northern hemisphere
 
21. Which one is an anticyclone?
(a) a low pressure system with clockwise winds in the northern hemisphere
(b) a high pressure system with clockwise winds in the northern hemisphere ✓
(c) a low pressure system with clockwise winds in the southern hemisphere
(d) a high pressure system with clockwise winds in the southern hemisphere
 
22. An upper air wind system with very high velocities in certain parts of the atmosphere is called
(a) a cyclone
(b) an anticyclone
(c) monsoon
(d) jet stream ✓
 
23. What is a tornado?
(a) a very high pressure center
(b) a very low pressure center ✓
(c) a very high ocean wave
(d) a planetary wind
 
24. Snowfall occurs when
(a) water droplets freeze as they fall to the ground
(b) raindrops are carried up by updraughts in air
(c) dew point of air is below freezing point ✓
(d) air is highly moist and rises due to convection
 
25. The process of change of state of water form solid directly into vapour is called
(a) condensation
(b) snow fall
(c) sublimation ✓
(d) precipitation
 
26. When humidity is expressed as a percentage, it is called
(a) relative humidity ✓
(b) absolute humidity
(c) specific humidity
(d) percentage humidity
 
27. What is the vapour pressure?
(a) the presence of vapour in air
(b) barometric pressure
(c) pressure only due to vapour in the air ✓
(d) pressure in the clouds
 
28. What is measured by the Sling Psychrometer?
(a) temperature
(b) humidity ✓
(c) pressure
(d) windi-velocity

29. The What is stated in terms of grams of water vapour per kilogram of moist air?
(a) specific humidity ✓
(b) relative humidity
(c) vapour pressure
(d) absolute humidity

30. Amount of water vapour (grams) in a given volume of air (cubic metre) is known as
(a) specific humidity
(b) relative humidity
(c) mixing ratio
(d) absolute humidity ✓

31. The temperature at which an air parcel will become saturated with the present amount of water vapour is
(a) critical temperature ✓
(b) saturation point
(c) dew point
(d) condensation point
 
32. What is meant by the term "Cirrus"?
(a) a low cloud
(b) a rain-bearing cloud
(c) a high cloud ✓
(d) a hail-bearing cloud
 
33. What is Fog?
(a) a cumulonimbus cloud
(b) a low stratus cloud ✓
(c) a cirro stratus cloud
(d) an altocumulus cloud
 
34. Hail consists of
(a) granular ice
(b) crystals of ice
(c) water droplets
(d) masses of ice with concentric layers ✓
 
35. Rainfall caused due to the presence of mountains in the way of winds is called
(a) orographic rain ✓
(b) cyclonic rain
(c) convectional rain
(d) advectional rain
 
36. The leeward side of a mountain which does not receive rain is known as
(a) dry zone
(b) desert area
(c) rain-shadow area ✓
(d) adiabatically dry area
 
37. Dew is caused when
(a) humid air condenses on cool surface ✓
(b) the air is colder than the earth's surface
(c) the sky is overcast at night
(d) the wind is too dry to cause rainfall
 
38. Which compound is the most abundant in sea water?
(a) calcium carbonate
(b) poatassium chloride
(c) sodium chlorides ✓
(d) manesium sulphate
 
39. In which of the following areas is salinity likely to be the highest?
(a) Indian Ocean
(b) Red Sea ✓
(c) North Pacific
(d) North Atlantic
 
40. What is a Gulf Stream?
(a) a cold current in the Atlantic Ocean
(b) cold current in the Pacific Ocean
(c) a warm current in the Atlantic Ocean ✓
(d) a warm current in the Pacific Ocean
 
41. One of the warm currents in the Indian Ocean is the
(a) Labrador Current
(b) Agulhas Current ✓
(c) Curoshio Current
(d) Humboldt Current

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