A. ∝ t
B. ∝ 1/t
C. ∝ √t
D. Independent of ‘t’
Chemical Heat Transfer
Chemical Heat Transfer
A. Avoid buckling of tubes
B. Provide support for tubes
C. Decrease the pressure drop
D. Facilitate its lengthening, if needed
A. Alcohol
B. Distilled water
C. Salt
D. Fruits jam
A. Its evaporation loss
B. Excessive corrosion
C. Uneconomic LMTD
D. Decrease in heat exchanger efficiency
A. Forced convection
B. Natural convection
C. Transient conduction
D. Steady state conduction
A. Cube
B. Cylinder
C. Sphere
D. Equal for all the three
A. Dittus-Boelter equation
B. Sieder-Tate equation
C. Nusselt equation
D. None of these
A. hf = hd
B. hf > hd
C. hf < hd
D. hf could be greater or smaller than hd
A. Eddies current
B. Conduction
C. Convection
D. None of these
A. Single pass, fixed tube sheet
B. U-tube
C. Three pass, fixed tube sheet
D. None of these
