Process Equipment and Plant Design Ratio of tube length to shell diameter for a shell and tube heat exchanger is 4 : 1 to 8 : 1 for liquid-liquid exchanger 8 : 1 to 12 : 1 for both liquid-liquid and gas-gas heat exchangers Both B & C < 4 : 1 for gas-gas exchangers 4 : 1 to 8 : 1 for liquid-liquid exchanger 8 : 1 to 12 : 1 for both liquid-liquid and gas-gas heat exchangers Both B & C < 4 : 1 for gas-gas exchangers ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The ratio of shear stress to shear strain is called Modulus of rigidity Bulk modulus Modulus of elasticity Shear modulus Modulus of rigidity Bulk modulus Modulus of elasticity Shear modulus ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Which of the following is not a valid assumption in continuous binary distillation for calculating the number of equilibrium stages by Mc-Cabe-Thiele's method? Sensible heat changes for vapour & liquid are negligibly small Molar latent heat of the two components are equal Reflux is not a saturated liquid Heat of mixing of normal liquid is assumed to be zero Sensible heat changes for vapour & liquid are negligibly small Molar latent heat of the two components are equal Reflux is not a saturated liquid Heat of mixing of normal liquid is assumed to be zero ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Wind load consideration in the design of a support can be neglected, when the vessel is Tall (say 30 metres), but is full of liquid None of these Short (< 2 m) and housed indoor Tall but empty Tall (say 30 metres), but is full of liquid None of these Short (< 2 m) and housed indoor Tall but empty ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The clearance between two tubes in a shell and tube heat exchanger is known as 'ligament', whose minimum value is __________ the outside diameter of the tube, but in no case it should be less than 4.5 mm. Equal to Three fourth One fourth Half Equal to Three fourth One fourth Half ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Which of the following is used to set the diameter of the distillation column? Number of theorectical plates Length of straight rectangular weir on cross-flow tray Allowable vapour velocity Static submergence Number of theorectical plates Length of straight rectangular weir on cross-flow tray Allowable vapour velocity Static submergence ANSWER DOWNLOAD EXAMIANS APP
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