A. Zero and infinity
B. Zero and one
C. Minimum and infinity
D. None of these
A. Tearing
B. Shearing
C. Tearing of the plate across a row
D. None of these
A. (BTU/hr.ft2. °F)-1
B. (kcal/hr.m2.°C)-1
C. (W/m2.°K)-1
D. (kcal/hr. m. °C)-1
A. Less than that for Tee (used as elbow, entering run)
B. More than that for Tee (used as elbow, entering run)
C. Around 90
D. Both B. and C.
A. Maximum permissible vapour velocity
B. Flooding limit of the column
C. Total cost consideration (fixed cost of the column plus the cooling water & steam cost)
D. None of these
A. 20
B. 30
C. 45
D. 85
A. Are easier to clean
B. Are less prone to fouling
C. Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less
D. None of these