Height of the flights in the rotary drier is in the range of 0.2 to 0.5 d 0.5 to 0.6 d 0.02 to 0.05 d 0.08 to 0.12 d TRUE ANSWER : ? YOUR ANSWER : ?
In a pressure vessel containing multiple openings of various dimensions at different parts, stress concentration at the edges of the opening is maximum which becomes negligibly small beyond the area covered by __________ times the hole diameter. Twenty Ten Five Two TRUE ANSWER : ? YOUR ANSWER : ?
Pressure differential maintained across a continuous rotary vacuum filter is in the range of __________ mm Hg column. 250 to 500 50 to 100 600 to 700 100 to 150 TRUE ANSWER : ? YOUR ANSWER : ?
Normally, the plate thickness of the bottoms and roofs of vertically cylindrical storage vessels as compared to that of the cylindrical shell is Same More More or less depending upon the pressure & temperature inside the vessel and the nature of the fluid contained therein Less TRUE ANSWER : ? YOUR ANSWER : ?
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 reduce the induced vibration in the tubes To increase the residence time of shell side fluid To increase the tube side heat transfer co-efficient by inducing turbulence To provide support to the tube bundle TRUE ANSWER : ? YOUR ANSWER : ?
What is the minimum recommended ligament for square pitch arrangement in case of heat exchangers? 6.5 cms 6.5 mm Equal to tube I.D Equal to tube O.D TRUE ANSWER : ? YOUR ANSWER : ?
Rate of filtrate delivery is inversely proportional to the Filtering area & the pressure difference driving force Cake & filter medium resistance Viscosity of filtrate Both A & B TRUE ANSWER : ? YOUR ANSWER : ?
Diameter of bubble caps used in high pressure columns is __________ as compared to that used in identical vacuum columns. Less Either A or B; no generalisation can be made Same More TRUE ANSWER : ? YOUR ANSWER : ?
Generally, as the length of the liquid path on a tray is increased beyond 5 ft, the overall column efficiency Decreases Increases Remains same May increase or decrease depending upon the plate spacing TRUE ANSWER : ? YOUR ANSWER : ?