A. Black
B. White lead
C. Grey
D. Light cream
Correct Answer: White lead ✔
Last Updated: March 03, 2019
Related MCQs
- For shell and tube heat exchanger, with increasing heat transfer area, the purchased cost per unit heat transfer area__________?
- Mode of heat transfer in which the fluid moves under the influence of changes in fluid pressure produced by external work is called__________?
- Steam traps are provided in steam carrying pipelines to__________?
- Kirchoff‟s law applies to __________ radiation?
- Log mean temperature difference (LMTD) cannot be used, if __________?
- In a parallel flow heat exchanger, if the outlet temperature of hot and cold fluids are the same, then the log mean temperature difference (LMTD) is__________?
- Bulk of the convective heat transfer resistance from a hot tube surface to the fluid flowing in it, is __________?
- If Prandtl number is greater than the Schmidt number, then the__________?
- Thermal diffusivity is the most important in heat transfer by__________?
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- The statement that “maximum wavelength of radiation is inversely proportional to the temperature” is __________ law?
- Among liquids, water has a comparatively high value of thermal conductivity, due to its__________?
- In which mode of heat transfer, the Biot number is important ?
- A diathermanous substance __________ the thermal radiation completely?
- Boiling point elevation of a solution of NaOH __________?
- Radiant energy received by a body is proportional to (where, d = the distance between the object emitting radiation and that receiving it.) ?
- Overall thermal resistance for conductive heat transfer through a series of flat resistances is equal to the__________?
- Prandtl and Reynolds analogy are same, when Prandtl number is__________?
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- Baffle spacing __________?
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- The purpose of floating head in a heat exchanger is to__________?
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- For condensation of pure vapors, if the heat transfer co-efficients in filmwise and drop-wise condensation are respectively hf and hd, then__________?
- Heat transfer in the laminar sub-layer in case of a liquid flowing through a pipe, is mostly by__________?
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- Baffles are provided in heat exchangers to increase the__________?
- Prandtl and Reynold’s analogies are identical for Prandtl number value of__________?
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- Which is the most suitable for the concert-ration of highly concentrated solution ?