A liquid flowing through a tube is turbulent. In which case will the maximum change in heat transfer coefficient occur?

Thermodynamics Mcqs
BILAL KHATTAK0

A.Diameter of the tube is increased 2 times maintaining the velocity of flow constant
B.Diameter of the tube is increased 2 times maintaining the rate of liquid flow constant
C.Diameter of the tube is increased 4 time maintaining the ratio of liquid flow constant
D.Diameter of the tube is increased 4 times maintaining the velocity of flow constant

Related Mcqs:

  1. Maximum heat transfer rate can be expected in case of
  2. The nature of flow of a fluid inside a tube i.e., whether it is turbulent or laminar, is ascertained by
  3. When a fluid is passed in steady, flow through a porous plug in a duct under such conditions that heat transfer, kinetic energy change and potential change is negligible, the process is called
  4. Overall heat transfer coefficient is proportional to the tube side volumetric flow rate raised to the poer 0.8. This holds only if the ration of the tube side film resistance to the total resistance is nearly
  5. The head loss in turbulent flow in a pipe
  6. In a shell and tube heat exchanger, the corrosive liquid is normally passed through
  7. A dimensionless heat transfer coefficient which gives a measure of the ratio of the heat transfer rate to the rate at which heat would be conducted within the fluid under a temperature gradient is known as
  8. Steady state heat transfer occurs when
  9. A pilot tube is used for the measurement of
  10. A U-tube of uniform cross-section is partially filled with a liquid A. Another liquid B which does not mix with liquid A is pour3ed into one side. It is found that the liquid levels of the two sides of the tube are the same. While the level of liquid A has risen by 2 cm. If the specifics gravity of liquid A is 1.1 the specific gravity of liquid B must be

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