Top 1000+ Solved Horticultural Science MCQ Questions Answer
Q. If the fruits are coated with wax the rate of water loss can be reduced upto ;
a. 20-30%
b. 30-40%
c. 40-50%
d. 30-50%
Q. Sweet potatoes can be cured at around 30°C and 90-95% RH for;
a. 1-2 days prior to storage
b. 2-5 days prior to storage
c. 4-7 days prior to storage
d. 7-8 days prior to storage
Q. In apples internal breakdown can be reduced during cold storage by treating with;
a. Sodium
b. Magnesium
c. Calcium
d. Potassium
Q. The most common packing material used for mango and citrus in Pakistan is;
a. Plastic bins
b. Bamboo baskets
c. Polythene bags
d. Wooden crates
Q. After harvest the rate of respiration increases in;
a. Tropical fruits
b. Non-climacteric fruits
c. Temperate fruits
d. Climacteric fruits
Q. Which is the best indicator of metabolic activities and potential storage life of freshproduce;
a. Rate of transpiration
b. Rate of respiration
c. Rate of ethylene production
d. Rate of weight loss
Q. As storage period of most fruits is increased, acidity and vitamin C;
a. Increase
b. Decrease
c. Remain same
d. Acidity increases while vitamin c decreases
Q. During curing of tuber crops;
a. Excessive moisture is lost
b. A waxy layer is developed on the fruit
c. Storage life increases
d. All of above
Q. The most common radiation dose used for extending shelf-life of fruits and vegetablesranges between;
a. 0.01-3.0 kGy
b. 5-10 kGy
c. 10-20 kGy
d. 20-30 kGy
Q. In controlled atmosphere storage;
a. Temperature and RH is controlled
b. Nitrogen concentration is controlled
c. Oxygen and carbon dioxide is controlled
d. All of the above
Q. Chilling injury is common in;
a. Temperate fruits
b. Tropical and sub-tropical fruits
c. Deciduous fruits
d. None of above
Q. Which enzyme is involved in ethylene synthesis;
a. ACC synthase
b. ACC oxidase
c. Endoploygalacturonase
d. a & b
Q. During storage of most fresh produce the relative humidity should be;
a. 50-60%
b. 65-75%
c. 70-80%
d. 85-95%