Heat Transfer
All analogy equations connecting friction factor and heat transfer co-efficient apply only to

Wall or skin friction
Form friction
Turbulent flow
Both A and B

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER DOWNLOAD EXAMIANS APP