Soil Science MCQs

Option A: Tofography

Option B: topograpy

Option C: Topography

Option D: All of the above

Correct Answer: Topography ✔

Option A: Fundamentals of soil

Option B: Essenttials of soil sciences

Option C: The nature and properties of soil

Option D: The mechanics of soil

Correct Answer: The nature and properties of soil ✔

Option A: Mixed indicator

Option B: Diphenylamine indicator 

Option C: Both a and b

Option D: None of the above

Correct Answer: Diphenylamine indicator  ✔

Option A: 16

Option B: 17

Option C: 18

Option D: None of the above

Correct Answer: 18 ✔

Option A: Clay minerals

Option B: Amorphous silicates

Option C: Iron and aluminiumoxides

Option D: All of the above

Correct Answer: All of the above ✔

Option A: 4:1-8:1

Option B: 10:1-15:1

Option C: 15:1-20:1

Option D: N0ne of the above

Correct Answer: N0ne of the above ✔

Option A: Regur

Option B: Ragour

Option C: Montmorillosol

Option D: Regosol

Correct Answer: Regur ✔

Option A: Cystine

Option B: Cystein

Option C: Methionine

Option D: All of these

Correct Answer: All of these ✔

Option A: cm/s

Option B: s/cm

Option C: cm2

Option D: cm2/s

Correct Answer: cm2 ✔

Option A: Predominantly in tetrahedral layer

Option B: Predominantly in octahedral layer

Option C: Both a & b

Option D: The statement is wrong

Correct Answer: Predominantly in octahedral layer ✔

Option A: Clay content

Option B: Sodium content

Option C: Silt content

Option D: Both A & B

Correct Answer: D. Both A & B ✔

Option A: Topo sequence

Option B: Catena

Option C: Chrono sequence 

Option D: Topography

Correct Answer: Chrono sequence  ✔

Option A: Oak

Option B: Pine

Option C: Banyan

Option D: Palm

Correct Answer: Banyan ✔

Option A: Area with in the roots

Option B: Root surface

Option C: An area of  soil in from root surface to 10 cm

Option D: An area of soil in immediate vicinity around root

Correct Answer: An area of soil in immediate vicinity around root ✔

A. Oak
B. Pine
C. Banyan
D. Palm

Submitted by: Muhammad Ali Kunbhar

Correct Answer: C. Banyan ✔

Option A: Polythene

Option B: White polythene

Option C: Black polythene

Option D: Both B&C

Correct Answer: Polythene ✔

Option A: Acid

Option B: Alkali

Option C: Both a & b

Option D: None of the above

Correct Answer: Alkali ✔

Option A: Helix

Option B: Limnea

Option C: Azolla

Option D: None of the above

Correct Answer: Azolla ✔

Option A: Frankia

Option B: Nitrobacter

Option C: Pseudomonas

Option D: None of the above

Correct Answer: Nitrobacter ✔

Option A: Enchytrids

Option B: Fungus

Option C: Bacteria

Option D: Plants

Correct Answer: Enchytrids ✔

Option A: Rhizoshpere

Option B: Lithoshpere

Option C: Atmoshpere

Option D: None of the above

Correct Answer: Rhizoshpere ✔

Option A: All the covalent bonds

Option B: Zero charge at surface

Option C: All are ionic bond

Option D: None of the above

Correct Answer: Zero charge at surface ✔

Option A: Mo

Option B: Al

Option C: Fe

Option D: All the above

Correct Answer: Al ✔

Option A: Lime

Option B: Sulphuric acid

Option C: Urea

Option D: All the above

Correct Answer: Lime ✔

Option A: Inversely related

Option B: Directly related

Option C: Not related

Option D: Occasionally related

Correct Answer: Directly related ✔

Option A: Solid and gases

Option B: CO2 & N

Option C: Solid and liquid

Option D: None of the above

Correct Answer: Solid and liquid ✔

Option A: Sleepy feelings

Option B: Hair disease

Option C: Mental disease

Option D: Acid rains

Correct Answer: Acid rains ✔

Option A: Glaciers

Option B: Barren land

Option C: Tundra

Option D: None of the above

Correct Answer: Tundra ✔

Option A: Reduction

Option B: Oxidation

Option C: Denitrification

Option D: None of the above

Correct Answer: Denitrification ✔

Option A: Acid to water

Option B: Water to acid

Option C: Both a & b

Option D: none

Correct Answer: Acid to water ✔

Option A: 250ºC

Option B: 1000ºC

Option C: 550ºC

Option D: 1250ºC

Correct Answer: 1000ºC ✔

Option A: 0.7 ppm

Option B: 1.5 ppm

Option C: 2 ppm

Option D: 3 ppm

Correct Answer: 0.7 ppm ✔

Option A: NH3OAC

Option B: NH4OAC

Option C: NH4AOC

Option D: Both b & c

Correct Answer: NH4OAC ✔

Option A: [(NaPO6)13]

Option B: [(NaPO3)13]

Option C: [(NaPO2)6]

Option D: None of the above

Correct Answer: [(NaPO3)13] ✔

Option A: Quartz

Option B: Smectite

Option C: Gypsum

Option D: All the above

Correct Answer: Quartz ✔

Option A: 14%

Option B: 46%P

Option C: 40%P

Option D: 50%P

Correct Answer: 46%P ✔

Option A: Acid

Option B: Alkali

Option C: Both a & b

Option D: Distilled water

Correct Answer: Alkali ✔

Option A: Reduction

Option B: Oxidation

Option C: Both a & b

Option D: Dehydration

Correct Answer: Oxidation ✔

Option A: 21

Option B: 23

Option C: 33

Option D: 39

Correct Answer: 33 ✔

Option A: 99 & 1

Option B: 90 & 10

Option C: 80 & 20

Option D: None of the above

Correct Answer: 99 & 1 ✔

Option A: Oligotrophic

Option B: Mestrophic

Option C: Eutrophic

Option D: Hydrotrophic

Correct Answer: Oligotrophic ✔

Option A: Solubor

Option B: Boric acid

Option C: Borax

Option D: All the above

Correct Answer: All the above ✔

Option A: Sedimentary rocks

Option B: Igneous rocks

Option C: Alluvial rocks

Option D: All the above

Correct Answer: Igneous rocks ✔

Option A: Regolith

Option B: Colluvial

Option C: Alluvium

Option D: Eolian

Correct Answer: Eolian ✔

Option A: Seepage

Option B: Soil erosion

Option C: Soil contamination

Option D: All the above

Correct Answer: Soil erosion ✔

Option A: Nutrient film technique

Option B: Hydrology

Option C: Hydrants

Option D: Hydroponics

Correct Answer: Hydroponics ✔

Option A: ECP

Option B: ECe

Option C: ECs

Option D: Ecw

Correct Answer: ECs ✔

Option A: Neutral

Option B: Alkaline

Option C: Acidic

Option D: None of the above

Correct Answer: Alkaline ✔

Option A: Desodication

Option B: Sodication

Option C: Degradation

Option D: Salininzation

Correct Answer: Salininzation ✔

Option A: Mesosphere

Option B: Thermosphere

Option C: Troposphere

Option D: Stratosphere

Correct Answer: Troposphere ✔

Option A: O2

Option B: CO2

Option C: SO3

Option D: All the above

Correct Answer: O2 ✔

Option A: SO

Option B: SO3

Option C: SO2

Option D: None of the above

Correct Answer: SO ✔

Option A: Mho’s scale

Option B: pH scale

Option C: Foot scale

Option D: None of the above

Correct Answer: A. Mho’s scale ✔

Option A: Evaptranspiration

Option B: Transpiration

Option C: Evaporation

Option D: Guttation

Correct Answer: Evaptranspiration ✔

Option A: Platy

Option B: Granular

Option C: Massive

Option D: Both b & c

Correct Answer: Massive ✔

Option A: Lysimeter

Option B: Tensiometer

Option C: Piezometer

Option D: Barometer

Correct Answer: Piezometer ✔

Option A: 10 mg L-1

Option B: 15 mg L-1

Option C: 20 mg L-1

Option D: None of the above

Correct Answer: 10 mg L-1 ✔

Option A: 2750 Kg m-3

Option B: 2550 Kg m-3

Option C: 2650 Kg m-3

Option D: None of the above

Correct Answer: 2650 Kg m-3 ✔

Option A: Hydrometer

Option B: Lysimeter

Option C: Thermometer

Option D: Tensiometer

Correct Answer: Lysimeter ✔

Option A: Cell elongation

Option B: Cell division

Option C: Both a & b

Option D: None of the above

Correct Answer: Cell elongation ✔

Option A: CaMg (CO3)2

Option B: MgCO3

Option C: CaCO3

Option D: None of the above

Correct Answer: CaMg (CO3)2 ✔

Option A: > 50 mg kg-1

Option B: > 10 mg-1

Option C: > 400 mg kg-1

Option D: None of these

Correct Answer: > 400 mg kg-1 ✔

Option A: Bas saturation percentage = CA+Mg+Na / CEC x 100

Option B: Bas saturation percentage = /CEC / CA+Mg+Na x 100

Option C: Bas saturation percentage = /CEC / CA+Mg x 100

Option D: None of the above

Correct Answer: Bas saturation percentage = CA+Mg+Na / CEC x 100 ✔

Option A: ECi:<1.5, SAR < 10 & RSC< 2.5

Option B: ECi:>1.5, SAR > 10 & RSC> 2.5

Option C: ECi:>1.5, SAR 2.5

Option D: Both a & b

Correct Answer: ECi:<1.5, SAR < 10 & RSC< 2.5 ✔

Option A: < 4 dsm-1

Option B: Equal to 4 dsm-1

Option C: 4-8 dsm-1

Option D: None of the above

Correct Answer: < 4 dsm-1 ✔

Option A: (NH2) HPO4

Option B: NH4H2PO4

Option C: NH4H2PO4

Option D: Both a & c

Correct Answer: (NH2) HPO4 ✔

Option A: NH nitrogen the NO3 nitrogen in soil

Option B: NO2 to NO3 nitrogen in soil

Option C: NO3 nitrogen to NH4 + in soil

Option D: None of the above

Correct Answer: NH nitrogen the NO3 nitrogen in soil ✔

Option A: Ratio autoanalyser

Option B: GM counter

Option C: Neutron probe

Option D: Dosimeter

Correct Answer: GM counter ✔

Option A: 25%N & 23% P2O3

Option B: 46%N & 23% P2O3

Option C: 23%N & 23% P2O3

Option D: None of the above

Correct Answer: 23%N & 23% P2O3 ✔

Option A: NaOH

Option B: NH4Cl

Option C: NH4OH

Option D: None of the above

Correct Answer: NaOH ✔

Option A: Gapon

Option B: Felbeek

Option C: Neir

Option D: Liekig

Correct Answer: Felbeek ✔

Option A: Amino acid

Option B: Lignin

Option C: fats

Option D: Cellulose

Correct Answer: Lignin ✔

Option A: Basidiomycetes

Option B: Ascomycetes

Option C: Endospore

Option D: None of the above

Correct Answer: Ascomycetes ✔

Option A: Azotobacter

Option B: Bacillus

Option C: Pseudomonas

Option D: Corey

Correct Answer: Pseudomonas ✔

Option A: Protozoa

Option B: Virus

Option C: Both a & b

Option D: None of the above

Correct Answer: Both a & b ✔

Option A: Arid soils

Option B: Inceptisols

Option C: Entisols

Option D: All the above

Correct Answer: All the above ✔

Option A: Primary hydration

Option B: ppm

Option C: Normality

Option D: Residence time

Correct Answer: Residence time ✔

Option A: 40%

Option B: 30%

Option C: 58%

Option D: 20%

Correct Answer: 40% ✔

Option A: NH3

Option B: NH48CO2

Option C: NH3 & CH4

Option D: All the above

Correct Answer: NH48CO2 ✔

Option A: 20%

Option B: 10%

Option C: 5%

Option D: 15%

Correct Answer: 10% ✔

Option A: HNO3

Option B: CO3

Option C: CO2

Option D: All the above

Correct Answer: All the above ✔

Option A: Lipids

Option B: Carbohydrates

Option C: Proteins

Option D: Waxes

Correct Answer: Carbohydrates ✔

Option A: Saline soils

Option B: Saline-sodic soils

Option C: Sodic soils

Option D: Neutral soils

Correct Answer: Saline soils ✔

Option A: ESR

Option B: SAR

Option C: EC

Option D: pH

Correct Answer: pH ✔

Option A: Table

Option B: Fume hoods

Option C: Both a & b

Option D: None of the above

Correct Answer: Fume hoods ✔

Option A: RSC=(CO32 + HCO2) (Na + K + Ca2 + Mg2)

Option B: RSC=(CO32 + HCO2) ( Ca2 + Mg2)

Option C: None of the above

Option D: non of these

Correct Answer: RSC=(CO32 + HCO2) ( Ca2 + Mg2) ✔

Option A: Activated charcoal

Option B: Azomethine H

Option C: Carbonated sodium sulphate

Option D: None of the above

Correct Answer: Azomethine H ✔

Option A: Ammonium sulphate Iron sulphate

Option B: Sodium ammonium sulphate

Option C: Ferrous Ammonium sulphate

Option D: None of the above

Correct Answer: Ferrous Ammonium sulphate ✔

Option A: Field capacity

Option B: Wilting point

Option C: Available water

Option D: Hygroscopic water

Correct Answer: Wilting point ✔

Option A: C3 plant

Option B: C4 plant

Option C: C2 plant

Option D: None of the above

Correct Answer: C4 plant ✔

Option A: Microspores

Option B: Macrospores

Option C: Mesopores

Option D: Nanopores

Correct Answer: Macrospores ✔

Option A: C

Option B: CAB

Option C: C

Option D: CAM

Correct Answer: C ✔

Option A: S2

Option B: SO-2

Option C: SO3

Option D: SO2

Correct Answer: SO-2 ✔

Option A: 23

Option B: 35

Option C: 45

Option D: 21

Correct Answer: 21 ✔

Option A: Macro element

Option B: Secondary element

Option C: Heavy metal

Option D: Free element

Correct Answer: Heavy metal ✔

Option A: Eutrophication

Option B: Nitrification

Option C: Denitrification

Option D: Sedimentation

Correct Answer: Eutrophication ✔

Option A: Agregation of soil particles

Option B: Cementing of soil particles

Option C: Dispersion of soil particles

Option D: All the above

Correct Answer: Dispersion of soil particles ✔

Option A: Wind

Option B: Air

Option C: Water

Option D: All the above

Correct Answer: Wind ✔

Option A: Hydrometer

Option B: Flame photometer

Option C: Spectrophotometer

Option D: All the above

Correct Answer: Flame photometer ✔

Option A: Native element

Option B: Secondary element

Option C: Primary element

Option D: Heavy metal

Correct Answer: Native element ✔