Heat Transfer Electromagnetic radiations propagate in vacuum with a velocity of __________ metre/second. 3 x l012 3 x l05 3 x l08 3 x l010 3 x l012 3 x l05 3 x l08 3 x l010 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Water always boils when its Temperature reaches 100° C Vapour pressure equals 76 cm of Hg Saturated vapour pressure equals the external pressure on its surface Saturated vapour pressure is less than the atmospheric pressure Temperature reaches 100° C Vapour pressure equals 76 cm of Hg Saturated vapour pressure equals the external pressure on its surface Saturated vapour pressure is less than the atmospheric pressure ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The statement that "maximum wavelength of radiation is inversly proportional to the temperature" is __________ law. None of these Planck's Wien's displacement Stefan-Boltzman's None of these Planck's Wien's displacement Stefan-Boltzman's ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In SI units, thermal conductivity is expressed in Watt/m.°K Watt/m². °K Watt/m4. °K Watt/m². °K Watt/m.°K Watt/m². °K Watt/m4. °K Watt/m². °K ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Radiation energy is emitted by all the substances, which are above 0°C none of the listed here 0°K 100°C 0°C none of the listed here 0°K 100°C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The outlet temperature of cooling water in a heat exchanger is generally not allowed to exceed above 50°C in industrial practice mainly to avoid Decrease in heat exchanger efficiency Excessive corrosion Uneconomic LMTD Its evaporation loss Decrease in heat exchanger efficiency Excessive corrosion Uneconomic LMTD Its evaporation loss ANSWER DOWNLOAD EXAMIANS APP
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