14000+ MCQs World Geography (Oceanography)
Total Questions:- 50
Time:- 30 Minutes
MCQ Pattern
Date:- 14/09/2026
1. Which of the following currents is located near the coastline of Philippines and China?
2. Which one of the following sites does not have coral reef formation?
3. Statement I The Kuroshio is a warm North-flowing ocean current on the Western margin of the North Pacific Ocean. Statement II Presence of a number of volcanoes at the bottom of the sea of Japan is responsible for the Kuroshio current becoming warm.
4. Which of the following are cold ocean currents?
I. Humboldt Current
II. Brazil Current
III. Oyashio Current
IV. Canary Current
5. Identify the incorrect statement(s).
I. Other things being equal, the differential effect of wave refraction tends to smooth the coastal outline.
II. A wave of translation can be a powerful force of destruction.
III. Waves often change direction as they approach the shore, a phenomenon known as Wave Refraction.
IV. Wave amplitude is one half of the wavelength.
6. Which one of the following pairs of island and sea/ocean is not correctly matched?
7. Which one of the following ocean currents is not a cold ocean current?
9. The interval between two high tides is approximately
10. Surface currents in the ocean are primarily caused by
12. A tidal phenomenon where the leading edge of incoming tide forms a wave against the direction of river, is known as
13. The East Pacific rise is also known as
14. Assertion (A) Despite low evaporation and stable stratification of the atmosphere, salinity is high in Polar Regions. Reason (R) Sea water freezes leaving the remaining water saline than before.
15. Identify the correct statement/s.
I. Littoral deposits generally contains gravels, sand, silt, clay.
II. Terrigeneous deposits are usually deposited at shallow depths.
III. Deep water deposits contain coral mud, volcanic mud.
16. Which of the following is a warm current?
17. Which one of the following ocean currents is a cold current?
18. Identify the incorrect statement(s) about marine deposits.
I. Blue mud covers the largest area of ocean.
II. Green mud is found in abundance on the sea floor near the Cape of Good Hope.
III. Grey colour of Green Mud is because of mineral Glauconite.
IV. Red clay is the most widespread Pelagic deposit.
19. The tides whose height are 20 per cent more than normal tides are called
20. With reference to Ocean Mean Temperature (OMT), which of the following statements is/are correct?
I. OMT is measured up to a depth of 26°C isotherm which is 129 meters in the South-Western Indian Ocean during January to March.
II. OMT collected during January to March can be used in assessing whether the amount of rainfall in monsoon will be less or more than a certain long-term mean.
21. Which of the following ridges is located in Indian ocean?
22. What percentage of world’s freshwater is stored as glacial ice?
23. Which one of the following is a warm ocean current?
24. In which ocean is the Kamchataka current found?
25. Tsunamis are not caused by
26. Assertion (A) In the Northern hemisphere, the ocean currents flowing from equator towards the North pole and from pole towards the equator are deflected to their right. Reason (R) This happens due to rotation of the Earth on the axis from West to East.
27. Which of the following is not a cold ocean current?
28. Which one of the following type of tides is observed at an interval of every 6 months?
29. The Galapagos ridge is found in
30. Assertion (A) During the neap tides the high tide is lower and the low tide is higher than usual. Reason (R) The neap tide, unlike the spring tide, occurs on the new Moon instead on the full Moon.
31. Consider the following statements.
I. Ocean currents are large mass of surface water that circulate in regular patterns around the oceans.
II. The planetary winds are probably the dominant influence on the flow of ocean currents.
III. The water of high salinity are denser than the water of low salinity.
IV. A landmass always obstructs and diverts an ocean current.
Which of the statements given above is/are correct?
32. In the question given below there are two statements labelled as Assertion (A) and Reason (R). In the context of the two, which of the following is correct?
Assertion (A) Seas and Oceans are vast reservoir of food and mineral resources for future.
Reason (R) At present mankind has not been able to develop cost effective technologies for the exploitation of marine resources.
33. With respect to thermocline, choose the correct statement.
I. It is the Layer in which temperature changes more rapidly than it does in layers above and below.
II. It depends upon season, latitude and turbulent mixing by wind.
III. It may be semi-permanent feature of body of water in which they occur.
34. Which of the following theories of the origin of tides is not correctly matched?
35. Jaffreys Basin, having an average depth of 5000 m is located on
36. Identify the correct decreasing order of salts in terms of % in sea water.
37. Which of the following is true regarding oceanic surface temperature?
I. The temperature of ocean’s surface decreased from poles towards equator.
II. The temperature of ocean water varies in Northern and Southern hemisphere.
III. The Isotherms are regular in the Southern hemisphere over oceanic surface.
38. The coral reefs are the marine counterparts of
39. Which of the following factors affects the origin and nature of movement of ocean current?
40. Extensive coral formations develop between 30°N and 30°S especially on the ............ margins of the landmasses.
41. Amsterdam St Paul plateau is located between
42. Out of the following which combination is incorrect?
43. Arrange the following island correctly from West to East.
44. Thermohaline is a part of large scale ocean circulation around the earth. Choose the correct statements.
I. It is driven by density gradient.
II. It includes both the processes of sinking and upwelling of water.
III. State of circulation has large impact on climate of Earth.
IV. It is sometimes called ocean conveyor belt or meridional overturning circulation.
45. Assertion (A) Water in an open pond remains cool even on a hot summery day. Reason (R) Water on heating evaporates and heat energy gets converted into latent heat.
46. In which one of the following oceans the Diamantina Trench situated?
47. The current produced by upwelling of cold water off the coast of Chile and Peru is known as
48. Apogean tide occurs during, which of the following conditions?
I. When Sun and Earth is at minimum distance.
II. When Moon is farthest from Earth.
III. When Moon is nearest to the Earth.
IV. When Moon is at 90° to Sun.
49. Which of the following is true regarding density of ocean waters?
I. Thermal contraction of sea water reduces its density.
II. Role of temperature in controlling density in polar areas is reduced.
III. Increase in pressure increases sea water density.
50. Assertion (A) Even in the deepest trenches more than 6 miles below the surface, the water never freezes. Reason (R) Only the upper layer of ocean waters freezes and acts as an insulator for lower layers.