Question 1

During storage of most fresh produce the relative humidity should be;

Accepted Answer

A)  50-60%
B)  65-75%
C)  70-80%
D)  85-95%

Question 2

In onions the maturity is determined by;

Accepted Answer

A)  Bulb size
B)  Bulb colour
C)  Leaves colour
D)  Tops drooping

Question 3

The postharvest quality in carnation flowers is observed better when they are cut at;

Accepted Answer

A)  Bud stage
B)  Fully open stage
C)  Half bud and half open stage
D)  All of the above

Question 4

In controlled atmosphere storage;

Accepted Answer

A)  Temperature and RH is controlled
B)  Nitrogen concentration is controlled
C)  Oxygen and carbon dioxide is controlled
D)  All of the above

Question 5

Which crop has higher respiration rate;

Accepted Answer

A)  Cabbage
B)  Grapefruit
C)  Potato
D)  Tomato

Question 6

The best method of harvesting citrus fruits is;

Accepted Answer

A)  Pulling
B)  Clipping
C)  Twisting
D)  Twist-picking

Question 7

The optimum storage temperature for apple ranges from;

Accepted Answer

A)  0-1°C
B)  2-5°C
C)  5-10°C
D)  10-15°C

Question 8

Sweet potatoes can be cured at around 30°C and 90-95% RH for;

Accepted Answer

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

Question 9

Which enzyme is involved in ethylene synthesis;

Accepted Answer

A)  ACC synthase
B)  ACC oxidase
C)  Endoploygalacturonase
D)  a & b

Question 10

Safe storage temperature for most mango cultivars is;

Accepted Answer

A)  5-6°C
B)  7-8°C
C)  13°C
D)  1-2°C

Question 11

The stage at which rose flowers should be cut;

Accepted Answer

A)  When petals are fully open
B)  At tight-bud stage
C)  When petals starts folding
D)  When the petals show full colour B

Question 12

As storage period of most fruits is increased, acidity and vitamin C;

Accepted Answer

A)  Increase
B)  Decrease
C)  Remain same
D)  Acidity increases while vitamin c decreases

Question 13

After harvest the rate of respiration increases in;

Accepted Answer

A)  Tropical fruits
B)  Non-climacteric fruits
C)  Temperate fruits
D)  Climacteric fruits

Question 14

The common fumigant applied to fruit crops after harvest, for controlling postharvest diseases;

Accepted Answer

A)  Ca(OH) 2
B)  SO2
C)  CaO
D)  CO2

Question 15

Internal browning in fresh produce is the result of ;

Accepted Answer

A)  Depletion of carbohydrates
B)  Action of polyphenoloxidase (PPO) 
C)  Loss of moisture
D)  Loss of chlorophyll

Question 16

Which is the best indicator of metabolic activities and potential storage life of fresh produce;

Accepted Answer

A)  Rate of transpiration
B)  Rate of respiration
C)  Rate of ethylene production
D)  Rate of weight loss

Question 17

In apples internal breakdown can be reduced during cold storage by treating with;

Accepted Answer

A)  Sodium
B)  Magnesium
C)  Calcium
D)  Potassium C

Question 18

Which one is the non-climacteric fruit;

Accepted Answer

A)  Apple
B)  Mango
C)  Peach
D)  Citrus

Question 19

If the fruits are coated with wax the rate of water loss can be reduced upto ;

Accepted Answer

A)  20-30%
B)  30-40%
C)  40-50%
D)  30-50%

Question 20

Chilling injury is common in;

Accepted Answer

A)  Temperate fruits
B)  Tropical and sub-tropical fruits
C)  Deciduous fruits
D)  None of above B

Exam 31: Postharvest Practices and Storage Techniques for Fresh Produce

During storage of most fresh produce the relative humidity should be;

Correct AnswerverifiedShow Answer

In onions the maturity is determined by;

Correct AnswerverifiedShow Answer

The postharvest quality in carnation flowers is observed better when they are cut at;

Correct AnswerverifiedShow Answer

In controlled atmosphere storage;

Correct AnswerverifiedShow Answer

Which crop has higher respiration rate;

Correct AnswerverifiedShow Answer

The best method of harvesting citrus fruits is;

Correct AnswerverifiedShow Answer

The optimum storage temperature for apple ranges from;

Correct AnswerverifiedShow Answer

Sweet potatoes can be cured at around 30°C and 90-95% RH for;

Correct AnswerverifiedShow Answer

Which enzyme is involved in ethylene synthesis;

Correct AnswerverifiedShow Answer

Safe storage temperature for most mango cultivars is;

Correct AnswerverifiedShow Answer

The stage at which rose flowers should be cut;

Correct AnswerverifiedB

As storage period of most fruits is increased, acidity and vitamin C;

Correct AnswerverifiedShow Answer

After harvest the rate of respiration increases in;

Correct AnswerverifiedShow Answer

The common fumigant applied to fruit crops after harvest, for controlling postharvest diseases;

Correct AnswerverifiedShow Answer

Internal browning in fresh produce is the result of ;

Correct AnswerverifiedShow Answer

Which is the best indicator of metabolic activities and potential storage life of fresh produce;

Correct AnswerverifiedShow Answer

In apples internal breakdown can be reduced during cold storage by treating with;

Correct AnswerverifiedC

Which one is the non-climacteric fruit;

Correct AnswerverifiedShow Answer

If the fruits are coated with wax the rate of water loss can be reduced upto ;

Correct AnswerverifiedShow Answer

Chilling injury is common in;

Correct AnswerverifiedB

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B

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C

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B