Indices of Spawn Quantity and Quality, and Spawn Behaviour in Relation to Hydrological and Hydrobiological Characters
8 minFull explanation, worked examples & memory tricks in the app
Kit Library / Education / Fisheries Science / Aquaculture
⚡ Topic Learning KitSpawn Indices
English 15 leveled MCQs Free
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All 15 questions, laddered from warm-up to topper-level, each with its answer and the reasoning behind it.
Warm-up · 11 questions
Q1. The index of spawn quantity or yield of a centre is defined as:
Beginner
A
The average current velocity at the collection site
B
The desirable spawn taken by one standard net during a season
C
The percentage of major carp spawn available at a site
D
The total number of spawn collected in a season regardless of net type
Answers and explanations are in the Veda app.
Q2. The spawn quality index of a site is expressed as:
Beginner
A
Ratio of day collections to night collections
B
Total percentage of major carp spawn available in a site
C
Total weight of spawn collected per standard net
D
Total number of minor carp spawn collected in a season
Answers and explanations are in the Veda app.
Q3. Which of the following are the categories of spawn mentioned in the source?
Beginner
A
Major carps, prawns and molluscs
B
Surface, column and bottom spawn
C
Freshwater, brackish and marine spawn
D
Major carps, minor carps and others
Answers and explanations are in the Veda app.
Q4. Which hydrological character shows a positive correlation with spawn availability?
Beginner
A
Flood level
B
Windy weather
C
Overcast sky
D
Constant current direction
Answers and explanations are in the Veda app.
Q5. What type of current direction is ideal for spawn collection?
Beginner
A
A constantly changing direction
B
A constant direction
C
No current at all
D
A direction opposite to the wind
Answers and explanations are in the Veda app.
Q6. Which weather condition is considered unfavourable for spawn collection?
Beginner
A
Drizzle
B
Overcast sky
C
Windy weather
D
Gentle breeze
Answers and explanations are in the Veda app.
Q7. How do night collections compare with day collections for spawn?
Beginner
A
Night collections are not possible
B
Day collections are higher than night collections
C
Night collections are higher than day collections
D
Both are equal
Answers and explanations are in the Veda app.
Q8. The index of spawn quantity is also referred to as:
Beginner
A
Spawn category index
B
Yield of a centre
C
Spawn quality index
D
Flood index
Answers and explanations are in the Veda app.
Q9. What is the ideal condition for current direction during spawn collection?
Beginner
A
Direction opposite to wind
B
Constant direction
C
No current
D
Changing direction
Answers and explanations are in the Veda app.
Q10. Windy weather is favourable for spawn collection.
Beginner
A
True
B
False
Answers and explanations are in the Veda app.
Q11. Night collections are higher than day collections.
Beginner
A
True
B
False
Answers and explanations are in the Veda app.
Building up · 4 questions
Q12. According to the source, the current velocity conducive to spawn collection is:
Intermediate
A
0.1–0.4 km per hour
B
0.5–3 km per hour
C
Above 5 km per hour
D
3–5 km per hour
Answers and explanations are in the Veda app.
Q13. Which weather condition is generally ideal for spawn collection?
Intermediate
A
Clear sky with strong winds
B
Hot and dry weather with no breeze
C
Overcast sky with or without drizzle and gentle breeze
D
Heavy rainfall with strong winds
Answers and explanations are in the Veda app.
Q14. Which of the following is NOT a spawn category listed in the source?
Intermediate
A
Exotic carps
B
Others
C
Major carps
D
Minor carps
Answers and explanations are in the Veda app.
Q15. Which factor is described as the most important character showing a positive correlation with spawn availability?
Intermediate
A
Current velocity
B
Flood level
C
Weather
D
Current direction
Answers and explanations are in the Veda app.
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