agriculture MCQs – Page 97

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 Review each marked answer and report any item that may be outdated or unclear.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

1921. The concentration of ethylene required for the ripening of Banana is______________________?
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A. 5 ppm with 24 hr

B. 15 ppm with 24 hr

C. 10 ppm with 24 hr

D. 12 ppm with 24 hr

1922. Oxidative rancidity is promoted by ____________________?
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A. Catalysis

B. All the above

C. Enzymes

D. Heat

1923. Which type of bacteria grow best at room temperature of 20____________________?
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A. All the above

B. Mesophilic

C. Thermophilic

D. Psychrophilic

1924. Main product of photosynthesis is_____________________?
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A. C6H12O6

B. C5H12O6

C. C12H24O12

D. C3H6O6

1925. Who gave the equation for study of soil property ?
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A. Ziebig

B. Newton

C. Neil

D. Jenny

1926. Amino acid with no polar R group are____________________?
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A. Hydrophobic

B. Aromatic

C. None of the above

D. Hydrophilic

1927. Some substance are added intentionally to foods for the purpose of marketing them more profit able are known as_____________________?
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A. All the above

B. Food contamination

C. Food adulterants

D. Food additives

1928. C6H12O6 bacteria CH2CHCOOH + H2O is_____________________?
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A. Alcoholic fermentation

B. Lactic fermentation

C. All the above

D. Acetic fermentation

1929. Rhyolite in nature is______________________?
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A. Acidic

B. Basic

C. Both a & b

D. None of the above

1930. Ligands that occur in Pakistan soils are__________________?
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A. CO3-2 SO4-2

B. SO4-2 OH

C. All the above

D. OH1 HCO2

1931. A compound toxic to crop formed by the thermal decomposition of urea is_________________?
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A. Uric acid

B. Biurct (NH2CONH CONH2 H2O)

C. Diuret

D. Both b & c

1932. Geochemical weathering processes occurs______________________?
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A. At the level

B. Below soil solum

C. On the mountain

D. On surface

1933. Soil particles having diameter greater than 2 mm are called___________________?
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A. Silt

B. Sand

C. Clay

D. Gravel

1934. Extension of storage life by inhibition of sprouting of potatoes, onions and garlic can be achieved by radiation dose of_________________?
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A. 0.05-0.12 kGy

B. 0.05-0.1 kGy

C. 0.05-0.15 kGy

D. non of these

1935. Felsic rocks consists of___________________?
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A. fe

B. Buiotitic

C. Quartz & Feldspars

D. Quartz

1936. Esterases, proteinases, alkali acid phosphates belongs to_____________________?
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A. Hydrolases enzyme

B. Ligases enzyme

C. Transferases enzyme

D. Oxireductases enzyme

1937. The zorawar is brand name of ___________________?
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A. None of the above

B. TSP

C. MAP

D. DAP

1938. Cyclic salts are mostly of ______________________?
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A. HCO<sub>3</sub>

B. None of the above

C. Cl

D. SO4

1939. The break down of pertinacious material is referred to as____________________?
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A. Lipolysis

B. non of these

C. Proteolysis

D. Autolysis

1940. Identify the fertilizer (s) containing potassium____________________?
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A. All the above

B. Chilean salt peter

C. MOP

D. SOP

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