How to blow glass - Exam
  • 1. What is the primary material used in glassblowing?
A) Clay
B) Metal
C) Molten Glass
D) Plastic
  • 2. What is the name of the long, hollow pipe used to gather molten glass?
A) Marver
B) Blowpipe
C) Punt
D) Shears
  • 3. What is the approximate temperature at which glass is workable for blowing?
A) 500°F (260°C)
B) 1000°F (538°C)
C) 2000°F (1093°C)
D) 3000°F (1649°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) Add color
B) Relieve internal stresses
C) Make the glass more brittle
D) Increase the melting point
  • 6. What type of furnace is used to melt glass?
A) Microwave
B) Oven
C) Glory Hole
D) Kiln
  • 7. What is a punt?
A) A type of glass
B) A solid metal rod used to hold the glass
C) A coloring agent
D) A tool for cutting glass
  • 8. What tool is commonly used for shaping and opening the glass?
A) Screwdrivers
B) Hammers
C) Jacks
D) Tweezers
  • 9. What is a 'gather' in glassblowing?
A) A type of furnace
B) A blob of molten glass collected on the blowpipe
C) A finishing technique
D) A broken piece of glass
  • 10. Which safety precaution is most important in glassblowing?
A) Ear protection
B) Gloves
C) Eye protection
D) Open-toed shoes
  • 11. What is the purpose of a reheating chamber (glory hole)?
A) To add color to the glass.
B) To polish the glass.
C) To keep the glass workable.
D) To cool the glass quickly.
  • 12. What does 'cold working' refer to?
A) Working in a cold environment
B) Working with cold glass
C) Modifying glass after it has cooled
D) Rapidly cooling glass
  • 13. Which of these is a common glassblowing technique?
A) Water casting
B) Cold welding
C) Laser cutting
D) Off-hand blowing
  • 14. What is the chemical composition of soda-lime glass?
A) Metal, carbon, and iron
B) Clay, water, and fire
C) Silica, soda ash, and lime
D) Plastic, sand, and salt
  • 15. What is the purpose of compressed air in glassblowing?
A) To clean the workshop.
B) To heat the glass.
C) To cool the tools.
D) To inflate the glass bubble.
  • 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) Layering
B) Inclusion
C) Murrine
D) Fritography
  • 18. What does 'devitrification' refer to?
A) The process of glass becoming stronger.
B) The process of glass melting.
C) The process of glass becoming crystalline.
D) The process of glass becoming clear.
  • 19. What is 'slumping'?
A) A method of cleaning glass.
B) A type of glass color.
C) Breaking glass intentionally.
D) Shaping glass using gravity and heat.
  • 20. What is the main difference between soft glass and borosilicate glass?
A) Soft glass is more durable
B) They're the same thing.
C) Soft glass melts at a lower temperature.
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) Block
B) Tweezers
C) Soldering Iron
D) Diamond Shears
  • 23. What is 'color flashing'?
A) Rapidly changing the color of glass
B) Heating glass to make it flash
C) Applying a thin layer of colored glass over clear glass
D) Cleaning glass to make it shiny
  • 24. What is the function of a 'Yoke'?
A) Cuts the glass
B) Heats the glass
C) Supports the blowpipe
D) Cleans the glass
  • 25. Why is it important to keep the blowpipe rotating?
A) To make the glass stronger
B) To make the glass shinier
C) To maintain even distribution of glass
D) To prevent the glass from cracking
  • 26. What is 'iridizing'?
A) Strengthening the glass
B) Removing color from glass
C) Creating a metallic, rainbow-like effect on the surface of glass
D) Making glass transparent
  • 27. What type of gloves are generally recommended for glassblowing?
A) Leather gloves
B) Heat-resistant gloves
C) Latex gloves
D) No gloves are needed
  • 28. What is a 'bit' in glassblowing?
A) A broken piece of glass
B) A type of colorant
C) A small piece of glass added to the main form
D) A type of tool
  • 29. What is the benefit of using borosilicate glass over soda-lime for certain applications?
A) Cheaper
B) Higher thermal shock resistance
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) The process of cleaning a furnace
C) A type of mold
D) A detailed plan or design for a glass piece.
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