26. Which Indian city is known for its traditional gold jewellery designs and craftsmanship?
a) Kolkata
b) Hyderabad
c) Varanasi
d) Thrissur
Answer: d) Thrissur
27. What is the process of giving a protective coating to metal jewellery to prevent tarnishing called?
a) Plating
b) Enameling
c) Rhodium plating
d) Oxidizing
Answer: c) Rhodium plating
28. Which gemstone is known for its pink color and is associated with October?
a) Emerald
b) Sapphire
c) Opal
d) Tourmaline
Answer: d) Tourmaline
29. Which precious metal is known for its lustrous white color and is a popular choice for diamond settings?
a) Gold
b) Silver
c) Platinum
d) Palladium
Answer: c) Platinum
30. What is the process of cutting and shaping gemstones into smooth, rounded forms called?
a) Cabochon
b) Faceted
c) Tumbled
d) Rough
Answer: c) Tumbled
