Heat Transfer
LMTD for counterflow and prallel flow heat exchanger will be the same, when the

None of these
Outlet temperature of hot fluid is less than the outlet temperature of the cold fluid
Cold fluid is heated to a certain temperature by condensing steam (isothermal fluid)
Outlent temperature of both the hot and cold fluid are same

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
Water always boils when its

Temperature reaches 100° C
Saturated vapour pressure equals the external pressure on its surface
Saturated vapour pressure is less than the atmospheric pressure
Vapour pressure equals 76 cm of Hg

ANSWER DOWNLOAD EXAMIANS APP