A. Plate type
B. Double pipe type with fin on steam side
C. Double pipe type with fin on air side
D. Shell and tube type
A. Agitated film evaporator
B. Long tube vertical evaporator
C. Open pan evaporator
D. None of these
A. 1000
B. 727
C. 800
D. 1200
A. Increases rapidly with temperature rise
B. Decreases rapidly with temperature rise
C. In independent of pressure
D. Both B. and C.
A. Facilitate the cleaning of outer tube surface
B. Enhance turbulence
C. Hold the tubes in position
D. All A , B & C
A. 10-50
B. 100-500
C. 1000-1500
D. 5000-15000
A. Wavelength of radiation
B. Nature of the body
C. Temperature of the body
D. None of these
A. Δt
B. Δt2
C. Δt3
D. √(Δt)
A. 50 -100 Kcal/hr.m2.°C
B. 50 -100 W/m2.°K
C. 50 -100 BTU/hr. ft.2°F
D. 1000 – 1500 BTU/hr. ft.2°F
A. Basket type
B. Horizontal tube
C. Calandria
D. None of these