Food Engineering

Tea and Coffee Processing

Question 1
Marks : +2 | -2
Pass Ratio : 60%
Which of the following is NOT a step in Black tea manufacture?
Drying/Firing
Rolling
Withering
Lump formation
Explanation:
Lump formation is NOT a step in Black tea manufacture.
Question 2
Marks : +2 | -2
Pass Ratio : 10%
Which of the following sentences is untrue?
The ideal moisture content in the coffee beans ready to be packed is about 11%
In wet type of process, the pulp is first removed and then washed away with water
The remaining bean is made wet and passed through rotating drums which separate them in size
None of the mentioned
Explanation:
All the sentences given are true.
Question 3
Marks : +2 | -2
Pass Ratio : 10%
Ripened berries sink in water and unripe ones float on water.
True
False
Explanation:
Ripened berries (heavier ones) sink in water and unripe ones float on water.
Question 4
Marks : +2 | -2
Pass Ratio : 10%
Company xyz claims that its Coffee is really expensive because they only choose the best coffee beans. What does that mean?
The coffee beans have been strip picked
The coffee beans have been selectively picked
The coffee cherry beans irrespective of how ripe they’re, are picked
None of the mentioned
Explanation:
The coffee beans have been strip picked means that the coffee cherry beans irrespective of how ripe they’re, are picked altogether. But, in the process of being selectively picked, only the ripe coffee beans are picked. This task requires extensive amount of labour and hence the Company xyz sells coffee which is more expensive.
Question 5
Marks : +2 | -2
Pass Ratio : 50%
Oolong Tea is _____
Mixture of Green and Black teas
Partial Oxidation takes place
The leaves are greenish brown
All of the mentioned
Explanation:
All the statements given are true.
Question 6
Marks : +2 | -2
Pass Ratio : 10%
Oxidation/ fermentation of tea leaves is done for Black tea manufacture such that the enzymes in the leaves come out and start to oxidize. This gives tea its flavour.
True
False
Explanation:
Oxidation/ fermentation of tea leaves is done for Black tea manufacture such that the enzymes in the leaves come out and start to oxidize. This gives tea its flavour. This statement is true.
Question 7
Marks : +2 | -2
Pass Ratio : 10%
Which of the following is NOT a step in Black tea manufacture?
Rolling of the leaves on a horizontal roller
Putting the leaves in a vacuum drier to remove moisture
Roll breaking using sieves
None of the mentioned
Explanation:
All the statements given are true.
Question 8
Marks : +2 | -2
Pass Ratio : 10%
Statement 1: Fine plucking is the earlier half of tea plucking and the quality of tea is good.
True, False
True, True
False, False
False, True
Explanation:
Both the statements are true.
Question 9
Marks : +2 | -2
Pass Ratio : 20%
Difference of Green tea from Black tea is that ________
The oxidation process is omitted
The tea leaves are steamed in a pan before being rolled so that the enzymes don’t interact with air and oxidize
The oxidation process is omitted & the tea leaves are steamed in a pan before being rolled so that the enzymes don’t interact with air and oxidize
None of the mentioned
Explanation:
The difference of Green tea from Black tea is that the oxidation process is omitted. The tea leaves are steamed in a pan before being rolled so that the enzymes don’t interact with air and oxidize.
Question 10
Marks : +2 | -2
Pass Ratio : 50%
Plucking table is when a tea is pruned and kept at a considerable height to be plucked by tea pluckers.
True
False
Explanation:
Plucking table is when a tea is pruned and kept at a considerable height to be plucked by tea pluckers.