HEAT TRANSFER QUIZ

Is almost independent of pressure

Is almost independent of temperature

Both B and C

Increases rapidly with temperature rise

Remains same

Decreases

Decreases linearly

Increases

Capacity of the evaporator is decreased

Both B and C

True temperature drop increases

Capacity of the evaporator is increased

Cold fluid is heated to a certain temperature by condensing steam (isothermal fluid)

None of these

Outlent temperature of both the hot and cold fluid are same

Outlet temperature of hot fluid is less than the outlet temperature of the cold fluid

Flows outside the tubes

Flows through the tube

Can flow either inside or outside the tubes

Should not be used as it gives very high pressure drop

4.364

0.72

18

83

Film

Saturated nucleate

Sub-cooled

None of these

There is no internal heat generation

Boundary surfaces are isothermal

Material is anisotropic

Constant temperature gradient exists

r = k/h

r = 2k/h

r = h/k

r = k/2h

None of these

Condensate

Non-condensables

Steam