If 'D' is the inside diameter of the shell of a shell and tube heat exchanger, then the baffle spacing is usually in the range of None of these D/2 or minimum 2" to 5D D/5 or minimum 2" to 5D D/5 or minimum 2" to D TRUE ANSWER : ? YOUR ANSWER : ?
Excessive liquid gradient on a tray may result in the All of these Back trapping Maldistribution of gas Gas blowing beneath cap skit TRUE ANSWER : ? YOUR ANSWER : ?
In chemical process equipments, the conical bottom heads used, usually has an apex angle of 20° 40° 80° 60° TRUE ANSWER : ? YOUR ANSWER : ?
Where does the maximum tensile strength occur in a thick cylindrical vessel subjected to internal pressure? At the mid thickness of the cylindrical wall None of these At the inner surface At the outer surface TRUE ANSWER : ? YOUR ANSWER : ?
Pick out the wrong statement pertaining to the design of the bubble cap tray of a distillation column to give stable operation and even vapour distribution. The dimensionless ratio of liquid gradient to pressure drop head caused by the bubble cap assembly should be less than 0.4 None of these Tendency towards stable operation is increased by increasing the skirt clearance of the caps, lowering the rate of liquid flow per unit plate width or increasing the spacing between the caps The pressure drop due to the caps & slots and the static submergence should be as high as practicable for reasonable operation TRUE ANSWER : ? YOUR ANSWER : ?
In condenser, the cooling water is passed in the tube side in a pass arrangement, because It reduces heat transfer area It makes condenser compact More thinner tubes can be used Pressure drop is reduced TRUE ANSWER : ? YOUR ANSWER : ?
In a shell and tube heat exchanger having square pitch, the shell side equivalent diameter is given by (where, P = pitch, d = outside diameter of the tube) 4P²/πd Πd/4P² (P² - πd²/4)/πd 4(P² - πd²/4)/πd TRUE ANSWER : ? YOUR ANSWER : ?
For identical situation, condensing film coefficient in case of a horizontal condenser is almost __________ the value expected in case of vertical condenser. Twice Five times Half Thrice TRUE ANSWER : ? YOUR ANSWER : ?
What is the slope of the operating line in the stripping section of a distillation column? > 1 < 1 ? TRUE ANSWER : ? YOUR ANSWER : ?
Two iron pipes of the same nominal diameter but different schedule numbers will have the same Inside diameter Outside diameter None of these Wall thickness TRUE ANSWER : ? YOUR ANSWER : ?