Q1: 1. Which of the following is NOT a function of patterns in manufacturing?

• A) To create the desired shape of the final product
• B) To provide dimensional accuracy
• C) To control the cooling rate of the molten metal
• D) To allow for the proper solidification of the material

Q2: 2. In sand casting, what is the purpose of a core?

• A) To create the outer shape of the part
• B) To provide dimensional accuracy
• C) To create internal features of the part
• D) To control the cooling rate of the molten metal

Q3: 3. Which type of pattern is used to produce a hollow casting?

• A) Split pattern
• B) Sweep pattern
• C) Match plate pattern
• D) Cope and drag pattern

Q4: 4. What is the main function of a mold in the casting process?

• A) To hold the molten metal
• B) To shape the molten metal
• C) To allow for proper solidification
• D) To create internal features of the part

Q5: 5. Which type of core is used for creating holes or cavities in a casting?

• A) Dry sand core
• B) Shell core
• C) Oil sand core
• D) CO2 core

Q6: 6. In investment casting, what material is typically used to create patterns?

• A) Wood
• B) Metal
• C) Plastic
• D) Wax

Q7: 7. Which type of pattern is used for producing symmetrical parts?

• A) Split pattern
• B) Match plate pattern
• C) Sweep pattern
• D) Solid pattern

Q8: 8. What is the function of a riser in a casting mold?

• A) To cool the casting quickly
• B) To provide directional solidification
• C) To create internal features of the part
• D) To control the pouring rate

Q9: 9. Which type of core is used for high production rates and complex shapes?

• A) Shell core
• B) Oil sand core
• C) Dry sand core
• D) CO2 core

Q10: 10. In permanent mold casting, what is the role of the core?

• A) To shape the mold
• B) To create internal features of the part
• C) To hold the molten metal
• D) To control the cooling rate

Q11: 11. Which type of pattern is typically used for producing a large number of identical castings?

• A) Match plate pattern
• B) Solid pattern
• C) Split pattern
• D) Sweep pattern

Q12: 12. What is the primary advantage of using a match plate pattern in casting?

• A) Faster cooling rate
• B) Higher dimensional accuracy
• C) Lower production cost
• D) Improved surface finish

Q13: 13. When designing a pattern, what factor should be considered to prevent defects like shrinkage?

• A) Wall thickness
• B) Mold material
• C) Core placement
• D) Pouring temperature

Q14: 14. Which type of core is made by baking sand in an oven?

• A) Shell core
• B) Oil sand core
• C) Dry sand core
• D) CO2 core

Q15: 15. What is the purpose of a chaplet in casting?

• A) To hold the core in place
• B) To control the cooling rate
• C) To create internal features
• D) To improve surface finish

Q16: 16. Which type of pattern is best suited for producing a casting with complex internal features?

• A) Solid pattern
• B) Split pattern
• C) Sweep pattern
• D) Match plate pattern

Q17: 17. In sand casting, what is the function of the parting line on a pattern?

• A) To provide draft angles
• B) To separate cope and drag
• C) To control the cooling rate
• D) To create internal features

Q18: 18. What is the primary function of a core print on a pattern?

• A) To create external features
• B) To hold the core in place
• C) To improve surface finish
• D) To control the pouring rate

Q19: 19. Which type of core is used for creating complex internal passages in a casting?

• A) Shell core
• B) Oil sand core
• C) CO2 core
• D) Dry sand core

Q20: 20. What is the main purpose of a chaplet in casting?

• A) To control the cooling rate
• B) To hold the core in place
• C) To improve surface finish
• D) To create internal features

Q21: 21. Which type of pattern is used for producing symmetrical parts with draft angles?

• A) Sweep pattern
• B) Match plate pattern
• C) Split pattern
• D) Solid pattern

Q22: 22. What is the function of a riser in casting?

• A) To hold the molten metal
• B) To provide dimensional accuracy
• C) To prevent shrinkage defects
• D) To control the pouring rate

Q23: 23. Which type of core is used for high precision casting applications?

• A) Oil sand core
• B) CO2 core
• C) Shell core
• D) Dry sand core

Q24: 24. In investment casting, what material is typically used for creating cores?

• A) Wood
• B) Metal
• C) Plastic
• D) Ceramic

Q25: 25. What is the primary advantage of using a split pattern in casting?

• A) Lower production cost
• B) Faster cooling rate
• C) Improved dimensional accuracy
• D) Higher surface finish