Process Equipment and Plant Design Diameter of rivet hole (d, mm) and the plate thickness (t, mm) are related by Unwin's formula as D = 3√t D = 1.1 t D = 1.5 t D = 1.6 √t D = 3√t D = 1.1 t D = 1.5 t D = 1.6 √t ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design For given number of passes, pitch & tube diameter, the maximum number of tubes that can be accommodated in a shell of tripled inside diameter will be __________ times. About 9 Considerably more than 9 About 3 Considerably less than 9 About 9 Considerably more than 9 About 3 Considerably less than 9 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The thickness of segmental baffles (25 -35% cut truncated plates usually) is generally __________ the tube wall thickness. Equal to Half Twice Four times Equal to Half Twice Four times ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Tube wall thickness depends on the cor-rosiveness of the fluids and their operating pressure & temperature and is specified by Birmingham wire gauge (B.W.G)-a number which varies from 8 to 18 with the numbers 14 and 16 being more commonly used. Outside diameter of tubes varies from about 15 to 50 mm; however a tube of less than __________ mm outside diameter is generally not recommended for fouling fluids. 38 16 28 19 38 16 28 19 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Triangular pitch tube layout as compared to square pitch in a shell and tube heat exchanger Both B and C Permits the use of less tubes in a given shell diameter Permits the use of more tubes in a given shell diameter Facilitates comparatively easier external cleaning because of large clearance Both B and C Permits the use of less tubes in a given shell diameter Permits the use of more tubes in a given shell diameter Facilitates comparatively easier external cleaning because of large clearance ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Lug support is meant for supporting __________ vessels. Small Large horizontal cylindrical Tall but empty Thick walled tall Small Large horizontal cylindrical Tall but empty Thick walled tall ANSWER DOWNLOAD EXAMIANS APP
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