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VisionIAS - Online Self Test
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Questions for practice
1)

With reference to Tides, consider the following statements:

1. Tidal bores are created when high tides enter the mouth of the river
2. Tides, when the Sun and Moon are in the same line, are called Neap Tides
3. Tides are not affected by the relative position of the Moon and Sun with respect to Earth
4. Kandla port is a tidal port.

Which of the statements given above is/are correct?

(a)1, 2 and 3 only

(b)2, 3 and 4 only

(c)1 and 4 only

(d)1 , 2, 3 and 4

2)

How many of the following factors is/are responsible for the occurrence of tides?

  1. The gravitational attraction of the moon only.
  2. The gravitational attraction of the sun and moon.
  3. The centrifugal force of the earth.

Select the correct answer using the code given below.

(a)only one 

(b)only two 

(c)all three 

(d)none 

3)

With reference to factors affecting ocean salinity, consider the following statements:

  1. The salinity of water in the surface layer of oceans depends mainly on evaporation and precipitation.
  2. Surface salinity is greatly influenced in coastal regions by the freshwater flow from rivers.
  3. The higher the wind speed, the higher the evaporation resulting in higher salinity.

Which of the statements given above is/are correct?

(a)1 only

(b)1 and 3 only

(c)2 and 3 only

(d)1, 2 and 3

4)

Which of the following factors is not responsible for the formation of tides?

(a)The gravitational pull of the moon

(b)The gravitational pull of the Sun

(c)Centrifugal force

(d)Coriolis force

5)

Consider the following statements:
1. Mixing cold and warm ocean currents bears the richest fishing grounds in the world.
2. Increased ocean temperature caused by climate change is one of the leading causes of coral bleaching.
3. The  most extensive tidal range across the world, occurs in the Bay of Fundy, Canada

How many of the statement(s) given above is/are correct?

(a)only one 

(b)only two 

(c)all three 

(d)none 

6)

Consider the following statements:
1. With the increase in ocean salinity, its density also increases.
2. Salinity of oceans always increases with the depth.
Which of the statements given above is/are correct?

(a)1 only

(b)2 only

(c)Both 1 and 2

(d)Neither 1 nor 2

7)

Consider the following statements :

Statement-1 : Equatorial regions have more precipitation and less salinity.
Statement-2 : Precipitation adds fresh water and decreases salinity. 

Which one of the following is correct in respect of the above statements?

(a)Both Statement-1 and Statement-2 are correct and Statement-2 is the correct explanation for Statement-1

(b)Both Statement-1 and Statement-2 are correct and Statement-2 is not the correct explanation for Statement-1

(c)Statement-1 is correct but Statement-2 is incorrect

(d)Statement-1 is incorrect but Statement-2 is correct 

8)

Consider the following statements :
Statement-1 :  New moon and full moon have spring tide. 
Statement-2 :  The Moon and Earth are at a right angle with the sun. 
Which one of the following is correct in respect of the above statements?

(a)Both Statement-1 and Statement-2 are correct and Statement-2 is the correct explanation for Statement-1

(b)Both Statement-1 and Statement-2 are correct and Statement-2 is not the correct explanation for Statement-1

(c) Statement-1 is correct but Statement-2 is incorrect

(d)Statement-1 is incorrect but Statement-2 is correct 

9)

Mention about the vertical change in Ocean temperature and density.(150 words/10 marks)

10)

With the use of diagrams, explain how tides are created. Also discuss the types of tides. (150 words | 10 Marks)



Answers
1) c
2) b
3) d
4) d
5) c
6) a
7) a
8) c