Quiz - 3 - AgriScan

#1. Which of the following is called Agricultural lime?

CaO

CaCO3

Ca(OH)2

CaSiO3

#2. Which is the CCE of basic slag?

179

136

86

109

#3. Shape of Halloysite is ______?

Tubular

Floppy

Needle shaped

Plate shaped

#4. Basal spacing of illite is _______?

7.2 A

10.1 A

14 A

20 A

#5. Which one of the following is not an example of metamorphic rock?

Granite

Gneiss

Calcite

Marble

#6. Basic rocks contains ________ % of silica?

40 - 55

20 - 30

55 - 65

65 - 70

#7. What is the % of Fe in Earth’s crust?

27.2

4.71

8.67

49.39

#8. Which one of the following is te source of both CA & MG?

Apatite

Gypsum

Dolomite

Olivine

#9. Soil order that is characterized by peat, bog, Organic soil (>20 % organic matter) is called ______?

Entisols

Gelisols

Oxisols

Histosols

#10. Newer alluvium is also termed as _______?

None

Bhangar

Khaddar

#11. Honeycomb like structure found in which soil?

Lateritic

Red

Black

Alluvium

#12. Which of the microorganisms is highest in soil in terms of biomass?

Actinomycetes

Fungi

Virus

Bacteria

#13. Rhizobium is nutritionally _______?

Autotrophic anaerobic

Heterotrophic anaerobic

Heterotrophic aerobic

Autotrophic aerobic

#14. Which is not true for humus?

CEC = 200 - 400 meq/100g

C:N = 10:1

C = 15%

N = 5%

#15. Soil is considered as organic soil when it contains at least ______% of organic manner?

10

20

5

50

#16. Which of the following does take longest time to decompose?

Cellulose

lignin

Sugar

protein

#17. The fraction of humus having higher molecular weight and insoluble in both acid and alkali is called ______?

Humic acid

Fuluic acid

Hymatomelanic acid

Humin

#18. The C content in organic matter is ________?

0.78%

58%

20%

1.724%

#19. Which is essential for Ammonia volatilization?

Submergence

High temperature

Alkaline medium

ASB

AgriScan

Quiz – 3

Results