Process Equipment and Plant Design In a vertical short tube evaporator (Calendria type), the Tube dia of 2.5-7.5 cms, tube length of 75-200 cms and cylinderical drum dia of 1-6 metres are normally used Liquor is inside the tube while the steam is outside the tube Area of central downtake is equal to 40 to 100% of total cross-sectional area of the surrounding tube All of these Tube dia of 2.5-7.5 cms, tube length of 75-200 cms and cylinderical drum dia of 1-6 metres are normally used Liquor is inside the tube while the steam is outside the tube Area of central downtake is equal to 40 to 100% of total cross-sectional area of the surrounding tube All of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Liquid gradient over the tray results due to the Resistance offered to flow of liquids by caps & risers and the flow of gas Low gas velocity Large plate spacing Large reflux ratio Resistance offered to flow of liquids by caps & risers and the flow of gas Low gas velocity Large plate spacing Large reflux ratio ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design With increase in pressure drop (for a given particle size), the dust collection efficiency of a cyclone separator will Remain unaffected Increase or decrease depending on the nature of the dust Decrease Increase Remain unaffected Increase or decrease depending on the nature of the dust Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a shell and tube heat exchanger having triangular pitch, the shell side equivalent diameter is given by (p² - πd²/4)/πd 4(0.86p² - πd²/4)/πd 4(0.86p² - πd²)/πd (4p² - πd²/4)/πd (p² - πd²/4)/πd 4(0.86p² - πd²/4)/πd 4(0.86p² - πd²)/πd (4p² - πd²/4)/πd 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 Heat of mixing of normal liquid is assumed to be zero Reflux is not a saturated liquid Sensible heat changes for vapour & liquid are negligibly small Molar latent heat of the two components are equal Heat of mixing of normal liquid is assumed to be zero Reflux is not a saturated liquid 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 = 2 σL σh = σL/2 No relation exists σh = σL σh = 2 σL σh = σL/2 No relation exists σh = σL ANSWER DOWNLOAD EXAMIANS APP
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