A. 1 kcal/hr. m2°C
B. 4.88 kcal/hr. m.2°C
C. 1 kcal/hr. m2.°K
D. None of these
Related Mcqs:
- 1 BTU/hr.ft.°F is equal to _____________ kcal/hr. m.°C?
A. 1.49
B. 1
C. 4.88
D. None of these - Sensible heat absorbed by 1 lb of water when it is heated from 32 to 212°F may be around ______________ BTU?
A. 180
B. 970
C. 3.97
D. Data insufficient, can’t be predicted - Latent heat absorbed by 1 lb of water at 212°F, when it is changed to steam at 212°F, may be around ______________ BTU?
A. 180
B. 970
C. 3.97
D. None of these - Steam trap is used to_________________?
A. Condense the steam flowing in the pipeline
B. Remove water resulting from partial condensation of steam
C. Stop the supply of steam
D. None of these - Nusselt number is the ratio of the temperature gradient at the wall to_________________?
A. Temperature difference
B. Heat flux
C. That across the entire pipe
D. None of these - In case of evaporators, liquid entrainment results primarily due to_________________?
A. High vacuum in the evaporator
B. High evaporation rate
C. Foaming of the solution
D. High heat transfer rate - The purpose of floating head in a heat exchanger is to_________________?
A. Avoid buckling of tubes
B. Provide support for tubes
C. Decrease the pressure drop
D. Facilitate its lengthening, if needed - Steam traps are provided in steam carrying pipelines to_________________?
A. Condense steam
B. Release excess steam pressure by bleeding steam
C. Remove condensate and inert gases
D. None of these - In a 1-1 concurrent heat exchanger, if the tube side fluid outlet temperature is equal to the shell side fluid outlet temperature, then the LMTD is_________________?
A. ∞
B. 0
C. Equal to the difference between hot and cold fluids inlet temperature
D. Equal to the difference between hot fluid inlet temperature and cold fluid outlet temperature - According to Reynolds analogy, Stanton number is equal to (where, f = Fanning friction factor) ?
A. 2f
B. f
C. f/2
D. f/4
