Heat Transfer In a shell and tube heat exchanger, There is no relationship between temperature drop and resistance The relationship is not generalised The temperature drop is inversely proportional to the resistance across which the drop occurs The temperature drops in the two fluids and the wall are proportional to individual resistances There is no relationship between temperature drop and resistance The relationship is not generalised The temperature drop is inversely proportional to the resistance across which the drop occurs The temperature drops in the two fluids and the wall are proportional to individual resistances ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Stefan-Boltzman constant depends on the Surface Temperature Medium None of these Surface Temperature Medium None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the highest thermal conductivity ? Silver Water Black Air Silver Water Black Air ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Water always boils when its Saturated vapour pressure is less than the atmospheric pressure Saturated vapour pressure equals the external pressure on its surface Vapour pressure equals 76 cm of Hg Temperature reaches 100° C Saturated vapour pressure is less than the atmospheric pressure Saturated vapour pressure equals the external pressure on its surface Vapour pressure equals 76 cm of Hg Temperature reaches 100° C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is generally considered as opaque surface towards radiations? Gases Solids Liquids Both solids & liquids Gases Solids Liquids Both solids & liquids ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fouling factor Does not provide a safety factor for design Accounts for additional resistances to heat flow Is a dimensionless quantity None of these Does not provide a safety factor for design Accounts for additional resistances to heat flow Is a dimensionless quantity None of these ANSWER DOWNLOAD EXAMIANS APP
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