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 Maximum acceptable total liquid gradient over a tray is about __________ mm. 12.5 45.5 30.5 5.5 12.5 45.5 30.5 5.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Brass valves are usually made for pipe sizes __________ inches. ?1 >2.5 ?2 >3.5 ?1 >2.5 ?2 >3.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Back-trapping in a distillation column results due to High gas velocity Low gas velocity Excessive liquid gradient over the tray Low reflux ratio High gas velocity Low gas velocity Excessive liquid gradient over the tray Low reflux ratio ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Lug support is Provided usually for vessels of much smaller height than skirt supported vessels All of these Same as bracket support The most suitable for thick vertical vessel Provided usually for vessels of much smaller height than skirt supported vessels All of these Same as bracket support The most suitable for thick vertical vessel ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The circumferential (hoop) stress in a thin walled cylinderical vessel under internal pressure is pd/3t pd/2t pd/4t pd/t pd/3t pd/2t pd/4t pd/t ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS