How to blow glass - Exam
  • 1. What is the primary material used in glassblowing?
A) Plastic
B) Molten Glass
C) Metal
D) Clay
  • 2. What is the name of the long, hollow pipe used to gather molten glass?
A) Punt
B) Marver
C) Blowpipe
D) Shears
  • 3. What is the approximate temperature at which glass is workable for blowing?
A) 1000°F (538°C)
B) 3000°F (1649°C)
C) 500°F (260°C)
D) 2000°F (1093°C)
  • 4. What is the process of rolling the molten glass on a flat surface called?
A) Annealing
B) Shaping
C) Gathering
D) Marvering
  • 5. What is the purpose of annealing?
A) Increase the melting point
B) Make the glass more brittle
C) Relieve internal stresses
D) Add color
  • 6. What type of furnace is used to melt glass?
A) Oven
B) Microwave
C) Glory Hole
D) Kiln
  • 7. What is a punt?
A) A type of glass
B) A coloring agent
C) A solid metal rod used to hold the glass
D) A tool for cutting glass
  • 8. What tool is commonly used for shaping and opening the glass?
A) Hammers
B) Jacks
C) Screwdrivers
D) Tweezers
  • 9. What is a 'gather' in glassblowing?
A) A type of furnace
B) A broken piece of glass
C) A blob of molten glass collected on the blowpipe
D) A finishing technique
  • 10. Which safety precaution is most important in glassblowing?
A) Eye protection
B) Ear protection
C) Gloves
D) Open-toed shoes
  • 11. What is the purpose of a reheating chamber (glory hole)?
A) To cool the glass quickly.
B) To keep the glass workable.
C) To add color to the glass.
D) To polish the glass.
  • 12. What does 'cold working' refer to?
A) Working with cold glass
B) Rapidly cooling glass
C) Working in a cold environment
D) Modifying glass after it has cooled
  • 13. Which of these is a common glassblowing technique?
A) Cold welding
B) Laser cutting
C) Off-hand blowing
D) Water casting
  • 14. What is the chemical composition of soda-lime glass?
A) Clay, water, and fire
B) Metal, carbon, and iron
C) Plastic, sand, and salt
D) Silica, soda ash, and lime
  • 15. What is the purpose of compressed air in glassblowing?
A) To inflate the glass bubble.
B) To clean the workshop.
C) To heat the glass.
D) To cool the tools.
  • 16. What is 'striking' in the context of glass coloring?
A) Developing the color through heat treatment
B) Removing color from the glass
C) Adding color to the glass
D) Mixing different colors of glass
  • 17. What is the term for adding small pieces of colored glass (frit) to molten glass?
A) Murrine
B) Layering
C) Inclusion
D) Fritography
  • 18. What does 'devitrification' refer to?
A) The process of glass becoming crystalline.
B) The process of glass becoming stronger.
C) The process of glass melting.
D) The process of glass becoming clear.
  • 19. What is 'slumping'?
A) A type of glass color.
B) Shaping glass using gravity and heat.
C) A method of cleaning glass.
D) Breaking glass intentionally.
  • 20. What is the main difference between soft glass and borosilicate glass?
A) They're the same thing.
B) Soft glass melts at a lower temperature.
C) Soft glass is more durable
D) Borosilicate has a lower coefficient of expansion.
  • 21. What is a 'cane' in glassblowing?
A) Rods of colored glass used to create patterns
B) A safety device
C) A mold for shaping glass
D) A type of glass cleaner
  • 22. Which of these is NOT a common glassblowing tool?
A) Soldering Iron
B) Tweezers
C) Block
D) Diamond Shears
  • 23. What is 'color flashing'?
A) Heating glass to make it flash
B) Cleaning glass to make it shiny
C) Applying a thin layer of colored glass over clear glass
D) Rapidly changing the color of glass
  • 24. What is the function of a 'Yoke'?
A) Cuts the glass
B) Supports the blowpipe
C) Heats the glass
D) Cleans the glass
  • 25. Why is it important to keep the blowpipe rotating?
A) To make the glass shinier
B) To prevent the glass from cracking
C) To make the glass stronger
D) To maintain even distribution of glass
  • 26. What is 'iridizing'?
A) Making glass transparent
B) Creating a metallic, rainbow-like effect on the surface of glass
C) Strengthening the glass
D) Removing color from glass
  • 27. What type of gloves are generally recommended for glassblowing?
A) Leather gloves
B) Heat-resistant gloves
C) No gloves are needed
D) Latex gloves
  • 28. What is a 'bit' in glassblowing?
A) A small piece of glass added to the main form
B) A type of tool
C) A type of colorant
D) A broken piece of glass
  • 29. What is the benefit of using borosilicate glass over soda-lime for certain applications?
A) Higher thermal shock resistance
B) Cheaper
C) Easier to melt
D) Brighter colors
  • 30. What is a 'muster' in glassblowing terminology?
A) A tool to measure the heat of the glass
B) A detailed plan or design for a glass piece.
C) The process of cleaning a furnace
D) A type of mold
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