Soil Science MCQs and Answers | Soil Science Quiz

Questions

81 Spectrophotometer is used for determination of _____

A N

B P

C K

D All of the above

View Answer

Answer: P

82 Which instrument is used for the estimation of potash (K)

A Spectrophotometer

B Flamephotometer

C Colorimeter

D Atomic absorption

View Answer

Answer: Flamephotometer

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83 KMnO4 (potassium permanganate) is used for __________

A Available nitrogen

B Organic carbon

C Available phosphorus

D Available potassium

View Answer

Answer: Available nitrogen

84 Which method used for determination of available phosphorus in acid soil

A Bray

B Olsen

C Walkley and Black

D Jackson

View Answer

Answer: Bray

85 Olsen method is used for phosphorus estimation

A Acidic soil

B Neutral to alkali soil

C Saline soil

D All of the above

View Answer

Answer: Neutral to alkali soil

86 The unit used for the measurement of electrical conductivity is _____

A dS/m

B uS/cm

C mg/m

D Both A and B

View Answer

Answer: Both A and B

87 EC (electrical conductivity) meter measures

A Total salt in soil

B Soluble salt in soil

C Both the salt

D None of the above

View Answer

Answer: Soluble salt in soil

88 pH meter measures

A H ions activity

B H ions concentration

C Al ions

D All of the above

View Answer

Answer: H ions activity

89 Which clay mineral is responsible for cracking in black soil?

A Kaolinite

B Illite

C Vermiculite

D Montmorillonite

View Answer

Answer: Montmorillonite

90 Which one is lower category for classification of soil?

A Soil order

B Family

C Soil series

D None of the above

View Answer

Answer: Soil series

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