Sardar Krushinagar Dantiwada Agricultural Uiversity 2010 B.Sc Agriculture for competitive -paper18

MULTIPLE option ques.
B.Sc Agriculture
(For Competitive Examination)

The soils formed in high rainfall area are
A Acidic B Basic C Alkaline D Saline

Horizon B2 is also known as
A Illuvial horizon B Eluvial horizon C Solum D Transition horizon

Hematite is converted to limonite by the process of
A Hydration B Hydrolysis C Oxidation D Carbonation

Name of phosphorus supplying mineral is
A Quartz B Apatite C Feldspar D Calcite

The horizon A + B are collectively called as
A Solum B Regolith C Organic D Illuvial

The order of desert soil is
A Entisoils B Aridisols C Vertisols D Inceptisols

The best agricultural texture is
A Loam B Sand C Silt D Clay

The water retained by air dried soils is considered as
A Gravitational B Hygroscopic C Capillary D Free

Natural soil aggregates are known as
A Peds B Clods C Floccules D None of these

Soil pH is a measure of
A Active acidity B Reserve acidity C Exchange acidity D None of these

Infiltration rate is relatively higher in
A Sandy soil B Clay loam soil C Silty soil D Clayey soil

Widely accepted fixed value of particle density is
A 1.5 g/cc B 2.65 g/cc C 2.29 g/cc D 1.65 g/cc

Solution whose strength or concentration is accurately known is termed as
A Normal solution B Concentrate solution C Standard solution D solvent

Study of origin, classification, morphology of soil is known as
A Pedology B Edaphology C Soil physics D Physical chemistry

Solution which contains 1 gram eq. wt. of substance dissolved in 1 lit. of solution is known as
A Molar solution B Normal solution C Molal solution D Standard solution
The size of silt fraction according to USDA system is
A 0.05-0.002 mm B 0.02-0.002 mm C < 0.02 mm D 0.2–0.02 mm
The range of usefulness of tensiometer is ranging from
A 10-15 bar B 1-10 bar C 0.0-0.8 bar D - 15 bar
An avg. solar radiation reaching to the earth is
A 80 % B 70 % C 60% D 50%
Maximum density of water is at
A 4 oC B - four oC C 0 oC D 10 oC
The water content on mass basis can be converted into quantity basis by multiplying it with
A Particle density B Surface tension C Bulk density D Total potential

Earning:   Approval pending.