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How to Identify and Classify Macadamia Nuts - Exam
Contributed by: Andrews
  • 1. What is the primary method for classifying macadamia nuts?
A) Tree height and age
B) Leaf shape and size
C) Shell color and texture
D) Size and kernel quality
  • 2. Which characteristic is NOT typically used to assess kernel quality?
A) Moisture content
B) Shell thickness
C) Color
D) Damage
  • 3. What does 'style' refer to in macadamia nut grading?
A) Shell hardness
B) Nut oil content
C) Kernel piece size and shape
D) Tree variety
  • 4. A macadamia nut with a high percentage of insect damage would be considered:
A) Suitable for processing
B) Premium grade
C) Lower grade
D) Higher grade
  • 5. Which of the following is a common defect in macadamia nuts?
A) Bright kernel color
B) Uniform size
C) High oil content
D) Insect damage
  • 6. What is the ideal moisture content for stored macadamia nuts to prevent spoilage?
A) High moisture content
B) Moderate moisture content
C) Variable moisture content
D) Low moisture content
  • 7. What tool is often used to measure the size of macadamia nuts?
A) Microscopes
B) Calipers
C) Scales
D) Sieves
  • 8. Which color is generally preferred for macadamia kernels?
A) Dark brown
B) Light golden
C) Pale green
D) Reddish hue
  • 9. What causes rancidity in macadamia nuts?
A) Presence of fungi
B) High sugar content
C) Oxidation of oils
D) Excess protein
  • 10. How are macadamia nuts typically sorted after harvesting?
A) By variety and origin
B) By color and aroma
C) By size and density
D) By price and demand
  • 11. What does 'sound kernel' typically indicate?
A) Kernel with shell attached
B) Kernel with a strong aroma
C) Kernel free from defects
D) Kernel with high oil content
  • 12. Which of these factors affects the grading process?
A) Soil composition
B) Personal preferences
C) International standards
D) Local weather patterns
  • 13. What is the main purpose of drying macadamia nuts?
A) Increase oil content
B) Enhance flavor
C) Reduce moisture content
D) Improve shell color
  • 14. How can you identify a 'floater' macadamia nut?
A) It sinks in water
B) It floats in water
C) It has a dark shell
D) It has a rough texture
  • 15. What does 'kernel recovery' refer to?
A) Amount of oil extracted from the kernel
B) Number of nuts recovered after processing
C) Percentage of kernel weight to whole nut weight
D) Time it takes to crack the nut
  • 16. Which storage condition is NOT ideal for macadamia nuts?
A) Cool and dry
B) Dark environment
C) Airtight containers
D) Warm and humid
  • 17. What is a common method used to inspect for internal defects?
A) Smell and taste
B) Weigh and measure
C) Crack and visually inspect
D) X-ray scanning
  • 18. What is a 'whole kernel' in macadamia grading?
A) A kernel with shell attached
B) An intact kernel
C) A cracked kernel
D) A kernel piece
  • 19. What is the significance of 'blemishes' on the kernel?
A) Enhances flavor
B) Increases oil content
C) Reduces grade and value
D) Indicates freshness
  • 20. Why is proper identification important for macadamia farmers?
A) To avoid legal issues
B) To maximize profits
C) To attract tourists
D) To preserve the environment
  • 21. What is a common cause of mold in macadamia nuts?
A) Excessive sunlight
B) Lack of ventilation
C) High moisture content
D) Low oil content
  • 22. What is a 'half kernel' in the context of macadamia grading?
A) Kernel with half oil
B) Kernel broken in half
C) Kernel with half shell
D) Kernel with half color
  • 23. What equipment might be used for automated sorting?
A) Kitchen scales
B) Optical sorters
C) Handheld calipers
D) Manual sieves
  • 24. Why is kernel integrity important for processing?
A) Affects shell thickness
B) Affects leaf color
C) Affects product quality
D) Affects tree health
  • 25. What's a key difference between different macadamia varieties?
A) Kernel size and flavor
B) Leaf shape and size
C) Shell thickness and color
D) Tree height and age
  • 26. What does 'free from foreign matter' mean in grading standards?
A) No cracks or blemishes
B) No rancid odor
C) No debris or contaminants
D) No moisture content
  • 27. Which process is used to reduce microbial contamination?
A) Germination
B) Fermentation
C) Pasteurization
D) Hydration
  • 28. What information is NOT usually included on a macadamia nut label?
A) Farmer's name
B) Weight
C) Grade
D) Origin
  • 29. How is nut maturity determined before harvest?
A) Leaf density
B) Tree height
C) Shell color
D) Kernel development
  • 30. What is a common method for cracking macadamia nuts?
A) Freezing
B) Hammering
C) Mechanical crackers
D) Baking
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