Process Equipment and Plant Design In a shell and tube heat exchanger, the shortest centre to centre distance between the adjacent tubes is Always less than the diameter of the tube Called tube pitch Called tube clearance None of these Always less than the diameter of the tube Called tube pitch Called tube clearance None of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The safe height (h) to diameter (d) ratio (i.e., h/d) for liquid/petro fuel storage tank of capacity more than 45 kilolitres is less than 1 2 3 3.5 1 2 3 3.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design For a cylinderical vessel of moderate height, the weld joint efficiency for joints parallel to the cylinderical axis is given as 1.0, while for joints along the girth (circumference) it is given as 0.8. In calculating the shell wall thickness using code formula for an internally pressurised cylinderical vessel, what value of weld joint efficiency should be used? 1 0.9 (0.8)0.5 0.8 1 0.9 (0.8)0.5 0.8 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a cylinderical vessel subjected to internal pressure, the longitudinal stress σL and the circumferential stress, σh are related by σh = σL/2 σh = σL No relation exists σh = 2 σL σh = σL/2 σh = σL No relation exists σh = 2 σL 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. 19 38 28 16 19 38 28 16 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Corrosion allowance in the design of pressure vessel/chemical equipment is not necessary, if Plain carbon steel and cast iron parts are used Wall thickness is > 30 mm Both B & C Material of construction is high alloy steel Plain carbon steel and cast iron parts are used Wall thickness is > 30 mm Both B & C Material of construction is high alloy steel ANSWER DOWNLOAD EXAMIANS APP
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