agriculture MCQs – Page 106

Practise multiple-choice questions from agriculture for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

agriculture Mcqs

1. soil science 2. agronomy 3. entomology 4. water management 5. horticulture 6. agricultural economics 7. plant pathology 8. food technology 9. animal husbandry 10. plant breeding and genetics

2101. The storage life of grape fruit at 50F with R.H of 90% is _____________________?
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A. 4-8 weeks

B. 2-3 weeks

C. 4-6 weeks

D. 10 weeks

2102. Elements essentially required for growth of all plants species are___________________?
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A. 16

B. 32

C. 3

D. 15

2103. Which one of the following is best flour improver ______________________?
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A. ClO2

B. All the above

C. Cl2

D. Benzoyl peroxide

2104. Addition of sodium hexametaphosphate in soil for determination of soil texture causes__________________?
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A. Agregation of soil particles

B. Cementing of soil particles

C. All the above

D. Dispersion of soil particles

2105. To prevent the growth of molds in bread ind other backed food which preservative is used___________________?
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A. Sodium acetate

B. Calcium acetate

C. All the above

D. Potassium acetate

2106. The problem of soil crosion Thal and Cholistan is predominantly due to___________________?
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A. All the above

B. Wind

C. Water

D. Air

2107. Many reactions similar to oxidative rancidity during irradiation been observed in _____________________?
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A. non of these

B. Lipids

C. Water

D. Carbohydrates

2108. pF unit is used for the measurement of_____________________?
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A. Negative soil water potential

B. Hydraulic potential

C. All the above

D. Hydraulic conductivity

2109. The mechanism of food intake regulation is known as ____________________?
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A. Lipostatic regulation

B. Glucostatic regulation

C. All the above

D. Aminostatic regulation

2110. The moisture content below which a cohesive soil does stick to metal tools is known as______________________?
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A. Alter berg limit

B. Sticky limit

C. Liquid limit

D. Plastic limit

2111. Weathering of gabbros gives_____________________?
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A. Clay and iron oxide

B. Sand and clay

C. Clay and Mg oxides

D. Sand and iron oxide

2112. Which rock contain potash feldspar ?
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A. Syeruite

B. Gabbro

C. All the above

D. Norile

2113. In soft drinks and dietetic forms of food which sweetening agent is widely used _____________________?
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A. All the above

B. Cyclamates

C. Calcium salt

D. Glycyrrhizin acid

2114. In preparation of fruit juices, pickles and carbonated beverages the preservative used is _____________________?
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A. Proconic acid

B. Benzonic acid

C. Parabens

D. All the above

2115. The plant trigly cerides are rich in_________________?
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A. Unsaturated fatty acids

B. Saturated fatty acids

C. Steroids

D. None of the above

2116. In dairy industry, the most often used bacteria to convert milk sugar to lactic acid are___________________?
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A. Streptococcus

B. Lactobacillus

C. Acetobacter

D. Both a & b

2117. Equation of Ozone is________________________?
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A. O2 O

B. O2 + O =O3

C. O3 + O

D. None of the above

2118. The symbol of Na stands for___________________?
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A. Nickle

B. None of these

C. Neon

D. Natrium

2119. Slipperiness is due to__________________?
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A. None of the above

B. Covalent bond

C. Wire bond

D. Vander walls forces

2120. Mechanisms of material uptake by plants is by____________________?
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A. Mass flow

B. Osmosis

C. Diffusion

D. Root interception

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