A. Logarithmic mean area
B. Arithmetic mean area
C. Geometric mean area
D. None of these
A. Both the tube sheets fixed
B. Both the tube sheets floating
C. The top tube sheet floating and bottom tube sheet fixed
D. The top tube sheet fixed and the bottom tube-sheet floating
A. Increases
B. Decreases
C. Remains unchanged
D. May increase or decrease; depends on the liquid
A. Equal to
B. More than
C. Less than
D. Either more or less than (depending upon the fluid)
A. Lower heat transfer area
B. Lower steam economy
C. Higher steam economy
D. Higher solute concentration in the product
A. Double pipe
B. Plate fine
C. Series and parallel set of shell and tube
D. None of these
A. Highest in last effect
B. Lowest in last effect
C. Same in all effects
D. Dependent on the number of effects