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

Answer: (D)