Multiple Choice Drill

Q: For a laminar flow (NRe10? 30? 15atm) A: conical? Ellipsoidal? Dished? Q: Spherical shaped pressure vessel is considered to be the most ideal because it can A: be designed without wind load considerations? Withstand higher pressure for a given metallic shell thickness? Be supported very easily? Q: Large process vessels operating under extreme temperature and pressure conditions are normally clad/lined with materials like stainless steels, aluminum, nickel and its alloys, copper and its alloys and titanium. The cladding thickness is generally about ___ percent of the total thickness. A: 10 to 20 Q: Pick out the wrong statement i. the compressive strength of a ductile material is less than its tensile strength ii. the tensile strength of a brittle material is less than its compressive strength

iii. the value of crushing load is more than that of buckling load for long columns