Heat flux increases with temperature excess beyond the Leiden-frost po – McqOptions

MCQOPTIONS

1.	Heat flux increases with temperature excess beyond the Leiden-frost point due t?
A.	Radiation effect becomes predominant
B.	Occurrence of subcooled boiling
C.	Vapor space become large
D.	Promotion of nucleate boiling
Answer» B. Occurrence of subcooled boiling

Discussion

No Comment Found

Related MCQs

Consider the following statements regarding nucleate boiling(i) The temperature of the surface is greater than the saturation temperature of the liquid(ii) Bubbles are created by the expansion of entrapped gas oil vapor at small cavities in the surface(iii) The temperature is greater than that in film boiling(iv) The heat transfer from the surface to the liquid is greater than that in the film boilingWhich of these statements are correct?
Leiden-frost expansion is related to
Heat flux increases with temperature excess beyond the Leiden-frost point due to
The bubble diameter at the time of detachment from the surface can be worked out from the relation proposed by Fritz and is given by
Consider the following phenomena(i) Boiling(ii) Free convection in air(iii) Forced convection in air(iv) Conduction in airIdentify the correct sequence (heat transfer coefficient)
The nucleate pool boiling is influenced by the following factors(1) Pressure(2) Liquid properties(3) MaterialIdentify the correct statements
LEIDEN-FROST_EXPANSION_IS_RELATED_TO?$
Consider_the_following_statements_regarding_nucleate_boiling$
Heat flux increases with temperature excess beyond the Leiden-frost point due t?
The excess temperature range 50 degree Celsius < d t < 200 degree Celsius is indicative of the region of