Maximum plate efficiency is achieved in case of ______________ flow?
Maximum plate efficiency is achieved in case of ______________ flow?
A. Split
B. Cross
C. Cascade
D. Reverse
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What is the slope of the operating line in the stripping section of a distillation column ?
What is the slope of the operating line in the stripg section of a distillation column ?A. 0
B. ∞
C. > 1
D. < 1In case of saddle packing (e.g., berl and intralox saddles), the maximum size of the packing should not exceed ______________ of the column diameter?
In case of saddle packing (e.g., berl and intralox saddles), the maximum size of the packing should not exceed ______________ of the column diameter?A. 1/5th
B. 1/15th
C. 1/30th
D. 1/50thThe ratio of the largest load in a test to the original cross-sectional area of the test specimen is called the _____________ stress?
The ratio of the largest load in a test to the original cross-sectional area of the test specimen is called the _____________ stress?A. Yield point
B. Breaking
C. Ultimate
D. None of theseOverall mass transfer co-efficient in case of absorption of __________ in water is based on the gas film co-efficient only, as the mass transfer process is gas film (phase) controlling ?
Overall mass transfer co-efficient in case of absorption of __________ in water is based on the gas film co-efficient only, as the mass transfer process is gas film (phase) controlling ?A. CO2
B. SO2
C. NH3
D. None of theseFor given number of passes, pitch & tube diameter, the maximum number of tubes that can be accommodated in a shell of tripled inside diameter will be ____________ times?
For given number of passes, pitch & tube diameter, the maximum number of tubes that can be accommodated in a shell of tripled inside diameter will be ____________ times?A. About 9
B. Considerably more than 9
C. Considerably less than 9
D. About 3The minimum shell thickness for tank ≤ 15 metres diameter is limited to _______________ mm, for reasons of elastic stability?
The minimum shell thickness for tank ≤ 15 metres diameter is limited to _______________ mm, for reasons of elastic stability?A. 2
B. 5
C. 10
D. 15