Large process vessels operating under extreme temperature and pressure conditions are normally clad/ lined with materials like stainless steel, aluminium, nickel & its alloys, copper & its alloys and titanium. The cladding thickness is generally about __________ percent of the total thickness.

• A. 40 to 50
• B. 1 to 5
• C. 10 to 20
• D. 30 to 40

Answer: (C)