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 = 1.1 t D = 1.6 √t D = 1.5 t D = 3√t D = 1.1 t D = 1.6 √t D = 1.5 t D = 3√t ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a shell and tube heat exchanger, tube side __________ of the mass velocity. Both A & B Pressure drop is proportional to the square Heat transfer co-efficient is proportional to 0.8th power Neither A nor B Both A & B Pressure drop is proportional to the square Heat transfer co-efficient is proportional to 0.8th power Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Tubes are fixed to the tube sheet (a thick circular metallic plate) by the method of tube rolling and brazing (non-removable) or ferrule connection (removable). Thickness of the tube, sheet is normally __________ the outside diameter of the tube but in no case it should be less than 22 mm (7/8"). Equal to 1.5 times Three fourth Half Equal to 1.5 times Three fourth Half ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The centre to centre distance between two consecutive baffles in a shell and tube heat exchanger is called the baffle pitch or baffle spacing, which is more than 1/5th the I.D. of the shell. Which of the following is not a function of the baffles? To provide support to the tube bundle To increase the tube side heat transfer co-efficient by inducing turbulence To increase the residence time of shell side fluid To reduce the induced vibration in the tubes To provide support to the tube bundle To increase the tube side heat transfer co-efficient by inducing turbulence To increase the residence time of shell side fluid To reduce the induced vibration in the tubes ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In the allocated cap area, bubble caps are generally arranged on equilateral triangular pitch. Number of caps fixed on a plate is with a Either A or B Clearance of 25-75 mm Neither A nor B Cap pitch of 1.3-2 times the cap diameter Either A or B Clearance of 25-75 mm Neither A nor B Cap pitch of 1.3-2 times the cap diameter ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Which of the following is used to set the diameter of the distillation column? Allowable vapour velocity Number of theorectical plates Length of straight rectangular weir on cross-flow tray Static submergence Allowable vapour velocity Number of theorectical plates Length of straight rectangular weir on cross-flow tray Static submergence ANSWER DOWNLOAD EXAMIANS APP
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