Related Questions

Which of the following gas-liquid contacting devices incurs the least pressure drop for a particular duty?
A Grid tray tower
B Perforated tray tower
C Wetted wall tower
D Bubble cap tower
Which of the following same diameter columns gives lowest pressure drop per unit height?
A Bubble-cap column
B Sieve-plate column
C Packed column (stacked)
D Randomly packed column
Applying a pressure drop across a capillary results in a volumetric flow rate 'Q' under laminar flow conditions. The flow rate for the same pressure drop, in a capillary of the same length but half the radius is
A $$\frac{{\text{Q}}}{2}$$
B $$\frac{{\text{Q}}}{4}$$
C $$\frac{{\text{Q}}}{8}$$
D $$\frac{{\text{Q}}}{{16}}$$
Out of the following flow measuring devices, which one incurs the maximum installation cost as well as pressure loss?
A Flow nozzle
B Venturimeter
C Rotameter
D Orificemeter
Smaller sized packings are generally dumped to the packed columns, and the large ones of size greater than __________ mm are stacked individually, which provides better control over bed porosity and offers lower gas pressure drop.
A 25
B 50
C 75
D 150
Diameter of bubble caps used in high pressure columns is __________ as compared to that used in identical vacuum columns.
A Less
B More
C Same
D Either A or B; no generalisation can be made
For a given fluid flow rate, which of the following incurs maximum head loss?
A Orifice meter
B Venturimeter
C Flow nozzle
D All of the above
The cost which a firm incurs for purchasing or hiring factors is called
A Implicit
B Explicit
C Real
D Nominal
Agreement which incurs transaction between two parties and promise held that second party will sell security at specific maturity is classified as
A repurchasing commercial notes
B repurchase bills
C purchase agreement
D reverse repurchase agreement
Agreement which incurs transaction between two parties and promise held that second party will repurchase security at specific price is classified as
A repurchasing commercial notes
B repurchase bills
C repurchase agreement
D reverse repurchase agreement

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