Category: Chemical Heat Transfer

A. 555
B. 55.5
C. 0.55
D. 0.15

A. Clean and dirt free
B. Smooth clean
C. Contaminated cooling
D. Polished

A. Dense structure
B. High proportion of air space
C. High specific heat
D. None of these

A. Coated
B. Oily
C. Glazed & polished
D. Smooth

A. Brick
B. Air
C. Water
D. Silver

A. 5.6697 × 10-8W/m2.°K4
B. 0.1714 × 10-8W/m2.°K4
C. 5.6697 × 10-8kcal/m2. °K4
D. 0.1714 × 10-8kcal/m2. °K4

A. Create vacuum
B. Regulate the vapor flow
C. Vent the non-condensable gases
D. Arrest the entrained liquid

A. 3 × 105
B. 3 × 108
C. 3 × 1010
D. 3 × 1012

A. Only counter-flow of fluids
B. Only parallel-flow of fluids
C. Both counter and parallel-flow of the fluids
D. Smaller pressure drop compared to 1-2 exchanger

A. Increase by 1.8 times
B. Decrease by 22
C. Increase by 216
D. Remain unchanged