A. Increases
B. Decreases
C. Remains unchanged
D. May increase or decrease; depends on the solid
A. 1
B. < 1
C. > 1
D. None of these
A. Heat sensitive material can be handled
B. There is no additional cost of pumg
C. Most concentrated liquid is at highest temperature
D. Equal heat transfer co-efficients exist in various effects
A. Free convection
B. Entry length problem in laminar forced conduction (develog thermal boundary layer)
C. Mixed convection (both free and forced)
D. Forced convection
A. Is not the same as baffle pitch
B. Should be less than one fifth the diameter of the shell
C. Should be less than the inside diameter of the shell
D. None of these
A. Decreases
B. Increases
C. Remain constant
D. First decreases upto certain temperature and then increases
A. Dirhing’s
B. Heisler’s
C. Mollier’s
D. Cox