The purpose of floating head in a heat exchanger is to_________________?

Byadmin March 3, 2019August 24, 2021

The purpose of floating head in a heat exchanger is to_________________?

A. Avoid buckling of tubes
B. Provide support for tubes
C. Decrease the pressure drop
D. Facilitate its lengthening, if needed

Chemical Heat Transfer

The ratio of velocity head to tube side return loss in case of a multipass shell and tube heat exchanger is ________________?

The ratio of velocity head to tube side return loss in case of a multipass shell and tube heat exchanger is ________________?

A. 2
B. 1/2
C. 4
D. 1/4

Read More The ratio of velocity head to tube side return loss in case of a multipass shell and tube heat exchanger is ________________?
Chemical Heat Transfer

The statement that “maximum wavelength of radiation is inversely proportional to the temperature” is ______________ law?

The statement that “maximum wavelength of radiation is inversely proportional to the temperature” is ______________ law?

A. Stefan-Boltzmann’s
B. Planck’s
C. Wien’s displacement
D. None of these

Read More The statement that “maximum wavelength of radiation is inversely proportional to the temperature” is ______________ law?
Chemical Heat Transfer

If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface temperature follows ____________ law?

If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface temperature follows ____________ law?

A. Hyperbolic
B. Parabolic
C. Linear
D. Logarithmic

Read More If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface temperature follows ____________ law?
Chemical Heat Transfer

With increase in temperature, the thermal conductivity of non-metallic amorphous solids_________________?

With increase in temperature, the thermal conductivity of non-metallic amorphous solids_________________?

A. Decreases
B. Increases
C. Remain constant
D. First decreases upto certain temperature and then increases

Read More With increase in temperature, the thermal conductivity of non-metallic amorphous solids_________________?
Chemical Heat Transfer

The interchange factor for radiation heat transfer from surface ‘x’ to surface ‘y’ in case of an infinite parallel planes with emissivities εx & εy is given by_______________?

The interchange factor for radiation heat transfer from surface ‘x’ to surface ‘y’ in case of an infinite parallel planes with emissivities εx & εy is given by_______________?

A. εx + εy
B. εx . εy
C. 1/εx + 1/εy
D. (εx + εy)/( εx + εy – εx . εy)

Read More The interchange factor for radiation heat transfer from surface ‘x’ to surface ‘y’ in case of an infinite parallel planes with emissivities εx & εy is given by_______________?
Chemical Heat Transfer

If h1 = inner film co-efficient and /h2 = outer film co-efficient, then the overall heat transfer co-efficient is________________?

If h1 = inner film co-efficient and /h2 = outer film co-efficient, then the overall heat transfer co-efficient is________________?

A. Always less than h1
B. Always between h1 and h2
C. Always higher than h2
D. Dependent on metal resistance

Read More If h1 = inner film co-efficient and /h2 = outer film co-efficient, then the overall heat transfer co-efficient is________________?

Similar Posts