Download PTU B.Voc 2020 Dec 1st Sem 75653 Soil Science Question Paper

Download PTU ( I.K.Gujral Punjab Technical University (IKGPTU)) Bachelor of Vocational Education (B. Voc) 2020 December 1st Sem 75653 Soil Science Previous Question Papers

Roll No.
Total No. of Pages : 02
Total No. of Questions : 18
B.Voc. (Agriculture) (2018 & Onwards) (Sem.?1)
SOIL SCIENCE
Subject Code : BVAG-105-18
M.Code : 75653
Time : 3 Hrs. Max. Marks : 30
INST RUCT IONS T O CANDIDAT ES :
1 .
SECT ION-A is COMPULSORY consistin g o f TEN q ues tions carry ing ONE mark
each.
2 .
SECT ION-B contains F IVE que stions c arrying 21/
(Two and Half) marks each
2
and students has to a ttempt any FOUR question s.
3 .
SECT ION-C c ontains THREE questions carrying FIVE marks each and s tudents
have to atte mpt any T WO questio ns.
SECTION-A
Write short notes on the following :
Q1 Bulk density
Q2 Cation exchange capacity
Q3 Infiltration rate
Q4 Charge on clay micelle
Q5 Marshy soils
Q6 Soil colloid
Q7 Colluvium
Q8 Eluviation
Q9 Volatilization
Q10 Denitrification
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SECTION-B
Q11 Discuss processes of soil formation and discuss role on any one in detail.
Q12 Describe the source of negative charge on silicate clay minerals.
Q13 Explain the composition of earth crust with the help of diagram.
Q14 Bulk density and particle density of a field were reported as 1.65 and 2.80 respectively.
Calculate the percent porosity of soil.
Q15 Derive a relation among bulk density, particle density and porosity.
SECTION-C
Q16 Explain beneficial and harmfull effects of sol organism.
Q17 Describe the conditions under which acidic soils are formed and write in detail about their
reclamation.
Q18 Define rock and explain its detailed classification.
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
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