Sardar Krushinagar Dantiwada Agricultural Uiversity 2010 B.Sc Agriculture for competitive -paper14
MULTIPLE option ques.
B.Sc Agriculture
(For Competitive Examination)
Two water molecules are held by ________ bond.
(a) Hydrogen (b) ionic (c) covalent (d) negative
The soil having PD 2.50 g/cc and BD 1.25 g/cc will have _____ % porosity.
(a) 45 (b) 50 (c) 55 (d) 60
Total porosity is more in:
(a) Sandy soil (b Loamy soil (c) Clayey soil (d) silty soil
The best agricultural soil structure is:
(a) spheroidal (b) Platy (c) prism (d) columnar
Chemically most active soil separate is
(a) sand (b) silt (c) clay (d) gravel
The common clay mineral obtained in silt is
(a) montmorillonite (b) mica (c) quartz (d)kaolinite
The lightness or darkness of soil coulour is denoted by:
(a) hue (b) value (c) chroma (d) none of these
Black soil are __________ in organic matter:
(a) Medium (b) Poor (c) High (d) None of these
At FC moisture is held at:
(a) - 31 water potential bar (b) - 1/3 water potential bar
(c) - 15 water potential bar (d) None of these
Organic matter influences water holding capacity of soil in the subsequent manner:
(a) Is not affected at all (b) Is reduced (c) Is stabilized (d) Is increased
Soil containing high proportion of organic matter have the subsequent colour:
(a) Dark colour (b) Yellow colour (c) Red colour (d) Light colour
The components of soil are:
(a) Mineral matter (b) Organic matter (c) Water & Air (d) All of these
Relative proportion of soil separates in sand, silt and clay is termed as:
(a) Soil texture (b) Soil structure (c) Soil porosity (d) None of these
The arrangement of individual soil particles in a specific trend is called:
(a) Soil texture (b) Soil separates (c) Soil structure (d) None of these
When organic matter is added to the soil:
(a) Bulk density does not change (b) Bulk density is decreased
(c) Bulk density is increased (d) None of these
A branch of soil science which deals with the soil from the crop production point of view:
(a) Pedology (b) Edaphology (c) Ecology (d) Soil geology
An avg. particle density of soils is:
(a) 1.5 g/cc (b) 2.0 g/cc (c) 2.65 g/cc (d) None of these
The process of determining the amount of sand, silt and clay is known as:
(a) Soil analysis (b) Mechanical analysis (c) Statistical analysis (d) Chemical analysis
Particle density is also known as:
(a) actual density (b) Bulk density (c) Apparent density (d) Specific gravity.
The best agricultural soil structure is:
(a) Crumb (b) Platy (c) Columnar (d) Blocky
MULTIPLE CHOICE QUESTIONS
B.Sc Agriculture
(For Competitive Examination)
Two water molecules are held by ________ bond. (a) Hydrogen (b) ionic (c) covalent (d) negative |
The soil having PD 2.50 g/cc and BD 1.25 g/cc will have _____ % porosity. (a) 45 (b) 50 (c) 55 (d) 60 |
Total porosity is more in: (a) Sandy soil (b Loamy soil (c) Clayey soil (d) silty soil |
The best agricultural soil structure is: (a) spheroidal (b) Platy (c) prism (d) columnar |
Chemically most active soil separate is (a) sand (b) silt (c) clay (d) gravel |
The common clay mineral found in silt is (a) montmorillonite (b) mica (c) quartz (d)kaolinite |
The lightness or darkness of soil coulour is denoted by: (a) hue (b) value (c) chroma (d) none of these |
Black soil are __________ in organic matter: (a) Medium (b) Poor (c) High (d) None of these |
At FC moisture is held at: (a) - 31 water potential bar (b) - 1/3 water potential bar (c) - 15 water potential bar (d) None of these |
Organic matter influences water holding capacity of soil in the following manner: (a) Is not affected at all (b) Is decreased (c) Is stabilized (d) Is increased |
Soil containing high proportion of organic matter have the following colour: (a) Dark colour (b) Yellow colour (c) Red colour (d) Light colour |
The components of soil are: (a) Mineral matter (b) Organic matter (c) Water & Air (d) All of these |
Relative proportion of soil separates in sand, silt and clay is termed as: (a) Soil texture (b) Soil structure (c) Soil porosity (d) None of these |
The arrangement of individual soil particles in a specific pattern is called: (a) Soil texture (b) Soil separates (c) Soil structure (d) None of these |
When organic matter is added to the soil: (a) Bulk density does not change (b) Bulk density is decreased (c) Bulk density is increased (d) None of these |
A branch of soil science which deals with the soil from the crop production point of view: (a) Pedology (b) Edaphology (c) Ecology (d) Soil geology |
An average particle density of soils is: (a) 1.5 g/cc (b) 2.0 g/cc (c) 2.65 g/cc (d) None of these |
The process of determining the amount of sand, silt and clay is known as: (a) Soil analysis (b) Mechanical analysis (c) Statistical analysis (d) Chemical analysis |
Particle density is also known as: (a) True density (b) Bulk density (c) Apparent density (d) Specific gravity. |
The best agricultural soil structure is: (a) Crumb (b) Platy (c) Columnar (d) Blocky |
Earning: Approval pending. |