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.Management Sciences
A. Exothermic
B. Mildly endothermic
C. Highly endothermic
D. None of these
Related Mcqs:
- Critical value of the _____________ number governs the transition from laminar to turbulent flow in free convection heat transfer?
- A. Grashoff B. Reynolds C. Both ‘a’ & ‘b’ D. Prandtl & Grashoff...
- The overall heat transfer co-efficient for a shell and tube heat exchanger for clean surfaces is U0 = 400 W/m2.K. The fouling factor after one year of operation is found to be hd0 = 2000 W/m2.K. The overall heat transfer co-efficient at this time is _____________________?
- A. 1200 W/m2.K B. 894 W/m2.K C. 333 W/m2.K D. 287 W/m2.K...
- The absorptivity of a grey body at a given temperature _____________ with increasing wavelength of radiation?
- A. Increases B. Decreases C. Remain constant D. May increase or decrease; depends on the material...
- Maximum heat transfer rate is achieved in _____________ flow?
- A. Co-current B. Counter-current C. Turbulent D. Laminar...
- Finned tube heat exchangers__________________?
- A. Give larger area per tube B. Use metal fins of low thermal conductivity C. Facilitate very large temperature drop through tube wall D. Are used for smaller heat load...
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