Month: March 2019

A. Tube dia is 3-6 cms, while tube length in 3-6 metres
B. Steam is fed to the shell, whereas the liquor is filled inside the tube
C. Liquor level is maintained at 1/3rd to 1/2 of the height of the tube
D. None of these

A. Lower fixed charges for the column
B. Greater cost for the reboiler heat supply
C. Greater cost for the condenser coolant
D. All A., B. and C.

A. < 10
B. > 10
C. > 20
D. < 20

A. 4(0.86P2 – πd2/4)/πd
B. (P2 – πd2/4)/πd
C. 4(0.86P2 – πd2)/πd
D. (4P2 + πd2/4)/πd

A. 1 to 5
B. 20 to 100
C. 500 to 750
D. 1000 to 2000

A. Hemispherical
B. Elliptical
C. Torispherical
D. None of these

A. Reducing scale deposition
B. Increasing pressure drop
C. Fixing the tubes
D. Creating turbulence

A. Equal to
B. Twice
C. Four times
D. Half

A. Double pipe heat exchanger
B. Multipass shell and tube heat exchanger
C. Fouling fluids
D. Counter flow of hot and cold fluids

A. Positive
B. Negative
C. No
D. None of these