The soil which is a mixture of sand, clay and silt is known as ________

Which of the following are the components of loamy soils?
I. Red soil
II. Clay soil
III. Alluvial soil
IV. Silt soil
V. Sandy soil

A

I and II

B

I, III and IV

C

II and V

D

II, III and V

The relative proportion of sand, silt and clay in a soil is known

A

Soil texture

B

Soil structure

C

Soil taxonomy

D

Soil aggregation

Consider the following statements regarding sand as filter material. i. It should be free from clay or silt ii. Organic matter should be present in the sand iii. It should be nonuniform Which of the above statement is/are correct?

A

i, ii

B

i only

C

ii, iii

D

i, ii, iii

Which of the following is the correct order of increasing size of the grains of soil particles?
1. Clay
2. Silt
3. Sand
4. Gravel

A

2, 3, 4, 1

B

1, 2, 3, 4

C

4, 3, 2, 1

D

1, 4, 3, 2

Arrange the following soil particle by size in the descending order:
I. Gravel
II. Clay
III. Silt
IV. Sand

A

I, II, III, IV

B

IV, II, III, I

C

I, IV, III, II

D

III, IV, I, II

Assertion A: Slow sand filters are more efficient in removal of bacteria than rapid sand filters.
Reason R: The sand used in slow sand filters is finer than that in rapid sand filters
Select your answer based on the coding system given below:

A

Both A and R is true and R is the correct explanation of A

B

Both A and R is true but R is not the correct explanation of A

C

A is true but R is false

D

A is false but R is true

__________ is a liquid or semi-liquid mixture of water and any combination of different kinds of soil (loam, silt, and clay).

A

Mud

B

Concrete

C

Mortar

D

Paint

A clay soil must contain at least . . . . . . . . Clay separate, to be designated a clay

A

80%

B

70%

C

50%

D

35%

The ________________ rollers are considered most suitable for compacting clayey soil or soil containing mixture of sand and clay.

A

Smooth wheeled

B

Sheep’s foot

C

Dead weight

D

Pneumatic

Consider the following statements.
1. The arid soil consists of Aeolian sand and clay.
2. The arid soil is almost poor in organic substances.
3. Crops like barley, cotton, etc are grown in this soil.
Which of the statements given above is/are correct?

A

Only 1

B

Both 1 and 2

C

Only 2

D

All of these

The soil which is a mixture of sand, clay and silt is known as ________

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