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