MCQ’s in SOILS & FERTILITY MANAGEMENT – 1 Soil Science & Agricultural Chemistry MCQ's TNPSC AO, HO, ADH, AAO & AHO EXAMS ICAR AIEEA JRF & SRF for PG admissions ICAR, NET, ARS, SMS (T-6) & STO (T-6) Exams IBPS – AFO Exams K. Vanangamudi

1. AGRICULTURE
SOIL SCIENCE & AGRICULTURAL CHEMISTRY (MCQ’s)
MCQ’s in SOILS & FERTILITY – 1
1. How soil develops
a. Decomposed crust b. Decomposed plant residues
c. Decomposed rock d. Decomposed animal residues
kz; vg;gb cz;lhfpwJ
a. kf;fpa Nky; XL b. kf;fpa jhtu fopTfs;
c. kf;fpa ghiw d. kf;fpa tpyq;F fopTfs;
2. Match List I with List II and choose the correct options given below
List I List II
A. Alluvial soil 1. Dark-grey
B. Black soil 2. Coastal belt
C. Red soil 3. Hilly regions
D. Laterite soil 4. Ferric oxide
(A) (B) (C) (D)
a. 4 3 2 1
b. 3 4 2 1
c. 1 2 3 4
d. 2 1 4 3
ml;ltiz gl;bay; I ypUe;J gl;bay; II nghUj;Jf. rhpahd tpilia
FwpaPLfspypUe;J Njh;e;njLf;f.
gl;Bay; I gl;Bay; II
A. tz;ly; kz; 1. fUQ;rhk;gy; kz;
B. fhpry; kz;; 2. flw;fiu kz;
C. nrk;kz; 3. kiyg;gpuNjr kz;
D. nrk;Giu kz; 4. nghpf; Mf;i]L
(A) (B) (C) (D)
a. 4 3 2 1
b. 3 4 2 1
c. 1 2 3 4
d. 2 1 4 3

2. 3. Consider the following statements and choose the correct answer
(i) Parental material of soil is metamorphic rock
(ii) Granite is a parental material of black soil
(iii) Parental material of soil is sedimentary rock
a. (i) & (iii) are correct b. (i) & (ii) are correct
c. (i) alone is correct d. (ii) alone is correct
fPo;f;fz;l thf;F%yq;fspy; rhpahd thf;F%yj;ij Njh;e;njLf;fTk;
(i) kz;zpd; ngw;Nwhh; cUkhwpa ghiw
(ii) fUQ;rhk;gy; kz; fUq;fy;ypUe;J cUthfpwJ
(iii) kz;zpd; ngw;Nwhh; gbTg;ghiw
a. (i) & (iii) rhp b. (i) & (ii) rhp
c. (i) kl;Lk; rhp d. (ii) kl;Lk; rhp
4. Find out the wrong answer
(a) Alluvial soil is found in Godavari
(b) Black soil is found in Kovilpatti of Tamil Nadu
(c) Laterite soils are found in Yercaud of Tamil Nadu
(d) Desert soils are found in New Delhi
jg;ghd tpilia fz;Lgpbf;fTk;
(a) tz;ly; kz; Nfhjhthpapy; fhzg;gLfpwJ
(b) jkpo;ehl;by; fUQ;rhk;gy; kz; Nfhtpy;gl;bapy; cs;sJ.
(c) nrk;Giu kz; jkpo;ehl;by; Vw;fhL gFjpapy; fhzg;gLfpwJ.
(d) ghiytd kz; GJ nly;ypapy; cs;sJ.
5. Match List I with List II and choose the correct options given below
List I List II
A. Alluvial soil 1. Groundnut
B. Black soil 2. Sugarcane
C. Red soil 3. Coffee
D. Laterite soil 4. Rice
(A) (B) (C) (D)
a. 4 2 1 3
b. 2 1 3 4
c. 4 2 1 3
d. 3 1 2 4

3. ml;ltiz gl;bay; I ypUe;J gl;bay; II nghUj;Jf. rhpahd tpilia
FwpaPLfspypUe;J Njh;e;njLf;f.
gl;bay; I gl;bay; II
A. tz;ly; kz; 1. epyf;fliy
B. fhpry; kz;; 2. fUk;G
C. nrk;kz; 3. fhg;gp;
D. nrk;Giu kz; 4. ney;
(A) (B) (C) (D)
a. 4 2 1 3
b. 2 1 3 4
c. 4 2 1 3
d. 3 1 2 4
6. Find out the right answer
(i) Desert soil contains more sodium
(ii) Peat and organic soil is suitable for tall crops
(iii) Problem soil has ESP of >15 & pH of > 8.5
(iv) Black soil is not suitable for growing cotton
a. (i) & (ii) are correct b. (iii) & (iv) are correct
c. (i) alone is correct d. (iii) alone is correct
rhpahd tpilia fz;Lgpbf;fTk;
ghiytd kz; mjpf Nrhbak; cg;G ,Uf;Fk;
fhp kw;Wk; fhpk kz; vy;yhg; gaph;fs; cw;gj;jp nra;a Vw;wJ.
gpur;rid kz; : ESP : >15, pH : > 8.5
fhpry; kz; gUj;jp gaph; nra;;a Vw;wJ ,y;iy.
a. (i) & (ii) rhp b. (iii) & (iv) rhp
c. (i) kl;Lk; rhp d. (iii) kl;Lk; rhp
7. Match List I with List II and choose the correct options given below
List I List II
A. High salt tolerant 1. Sugar beet
B. Medium salt tolerant 2. Sesame
C. Low salt tolerant 3. Pearl millet
D. Salt Tolerant crops 4. Barley
(A) (B) (C) (D)
a. 2 3 1 4
b. 4 3 2 1
c. 4 3 1 2
d. 1 2 3 4

4. ml;ltiz gl;bay; I ypUe;J gl;bay; II nghUj;Jf. rhpahd tpilia
FwpaPLfspypUe;J Njh;e;njLf;f.
gl;bay; I gl;bay; II
A. mjpf cg;G jd;ikia jhq;Fk; 1. Rfh; gPl;
B. eLj;ju cg;G jd;ikia jhq;Fk; 2. vs;
C. Fiwthd cg;G jd;ikia jhq;Fk; 3. fk;G
D. cg;G jd;ikia jhq;Fk; gaph; 4. ghh;yp
(A) (B) (C) (D)
a. 2 3 1 4
b. 4 3 2 1
c. 4 3 1 2
d. 1 2 3 4
8. Match List I with List II and choose the correct options given below
List I List II
A. Red soil 1. 3%
B. Black soil 2. 7%
C. Laterite soil 3. 62%
D. Coastal soils 4. 12%
(A) (B) (C) (D)
a. 4 3 1 2
b. 4 2 1 3
c. 3 2 1 4
d. 3 4 1 2
ml;ltiz gl;bay; I ypUe;J gl;bay; II nghUj;Jf. rhpahd tpilia
FwpaPLfspypUe;J Njh;e;njLf;f.
gl;bay; I gl;bay; II
A. nrk;kz; 1. 3 rjk;
B. fhpry; kz; 2. 7 rjk;
C. nrk;Giu kz; 3. 62 rjk;
D.; flw;fiu kz; 4. 12 rjk;
(A) (B) (C) (D)
a. 4 3 1 2
b. 4 2 1 3
c. 3 2 1 4
d. 3 4 1 2

5. 9. What is the diameter of soil particles that is excluded for soil textural
determinations?
a. >2 mm b. <2mm
c. >0.2mm d. <0.2mm
kz; mikg;G epUzapj;jypy; jtph;f;fg;gLk; kz; Jfs;fspd; tpl;lk; vt;tsT?
a. >2 mm b. <2mm
c. >0.2mm d. <0.2mm
10. Match List I with List II and choose the correct options given below
List I List II
A. Clay 1. 1.00 – 2.00 mm
B. Silt 2. <0.002 mm
C. Fine sand 3. 0.002 – 0.05 mm
D. Very coarse sand 4. 0.10-0.25 mm
(A) (B) (C) (D)
a. 4 3 2 1
b. 2 4 3 1
c. 2 3 4 1
d. 4 3 1 2
ml;ltiz gl;bay; I ypUe;J gl;bay; II nghUj;Jf. rhpahd tpilia
FwpaPLfspypUe;J Njh;e;njLf;f.
gl;bay; I gl;bay; II
A. fsp;kz; 1. 1.00 – 2.00 mm;
B. tz;ly; kz; 2. <0.002 mm;
C. Ez; kzy; 3. 0.002 – 0.05 mm
D.; kpFe;j nrhnrhug;ghd kz; 4. 0.10-0.25 mm
(A) (B) (C) (D)
a. 4 3 2 1
b. 2 4 3 1
c. 2 3 4 1
d. 4 3 1 2
11. Soil colour inherited from its parent material is referred as
a. Lithochromic b. Monochromic
c. Polychromic d. Dichromic
jha; nghUspypUe;J kuG top te;j kz; epwj;ij _________vd;W
miof;fg;gLfpwJ.
a. ypj;NjhfpNuhkpf; b. NkhNdhfpNuhkpf;
c.ghypfpNuhkpf; d. ilf;fpNuhkpf;

6. 12. Which is the most common colour in the soil?
a. Red b. Yellow
c. Blue d. Brown
kz;zpy; fhzg;gLk; nghJthd epwk; vJ?
a. rptg;G b. kQ;ry;
c. ePyk; d. kuepwk;
13. In munsell colour chart, value of ‘o’ indicates
a. White b. Black
c. Red d. Yellow
Kd;ry; epw ml;ilapy; ‘o’ vd;Dk; msT _________ ia Fwpf;Fk;
a. nts;is b. fUg;G
c. rptg;G d. kQ;ry;
what is
14. What is the bulk density of sandy soil?
a. 1.4 g/cm3
b. 1.3 g/cm3
c. 1.1 g/cm3
d. 1.36 g/cm3
kzypd; gUk mlh;j;jp vt;tsT?
a. 1.4 g/cm3
b. 1.3 g/cm3
c. 1.1 g/cm3
d. 1.36 g/cm3
15. Consider the statement and choose the correct one
(i) In sandy soil, pore space is low
(ii) In clay soil, pore space is high
(iii) Presence of organic matter decreases pore space
a. (i) & (ii) are correct b. (ii) alone is correct
c. (iii) alone is correct d. all the statements are correct
nfhLf;fg;gl;l $w;iwf; fUj;jpy; nfhz;L rhpahd tpilia Njh;T nra;f
(i) k;zypy; Jis ,ilntsp Fiwthf ,Uf;Fk;
(ii) fspkz;zpy; Jis ,ilntsp mjpfkhf ,Uf;Fk;
(iii) fhpkg;nghUs; ,Ue;jhy; Jis ,ilntsp FiwthFk;
a. (i) & (ii) rhp b. (ii) kl;Lk; rhp
c. (iii) kl;Lk; rhp d. midj;J $w;WfSk; rhp
16. Among the following which is not an ether soluble compound
a. Fats b. Oil
c. Tannins d. Wax
fPo;fhz;gdtw;Ws; <j;juhy; fiuf;f KbahjJ vJ?
a. nfhOg;G b. vz;nza;
c. lhdpd;]; d. nkOF

7. 17. The process of converting organic form of nitrogen into inorganic form of
nitrogen is known as
a. Denitrification b. Mineralization
c. Nitrification d. Ammonification
fhpk cUtpy; cs;s jior;rj;ij fdpk cUtpy; khw;Wjy; Kiw _________
vdg;gLk;.
a. iel;u;[d; ePf;fk; b. fdpkkhf;fy;
c. iel;u[dhf;fk; d.mk;Nkhdpkakhf;fy;