Steam traps are provided in steam carrying pipelines to_________________?

Byadmin March 3, 2019August 24, 2021

Steam traps are provided in steam carrying pipelines to_________________?

A. Condense steam
B. Release excess steam pressure by bleeding steam
C. Remove condensate and inert gases
D. None of these

Chemical Heat Transfer

Kirchoff’s law is applicable to________________?

Kirchoff’s law is applicable to________________?

A. Monochromatic radiation only
B. Total radiation only
C. Both A. and B.
D. Only volumes and not to surfaces

Read More Kirchoff’s law is applicable to________________?
Chemical Heat Transfer

Forced circulation evaporators are useful for the concentration of viscous, salting and scale forming liquors. Which of the following is a forced circulation evaporator ?

Forced circulation evaporators are useful for the concentration of viscous, salting and scale forming liquors. Which of the following is a forced circulation evaporator ?

A. Long vertical evaporator
B. Horizontal tube evaporator
C. Agitated film evaporator
D. Calandria vertical tube evaporator

Read More Forced circulation evaporators are useful for the concentration of viscous, salting and scale forming liquors. Which of the following is a forced circulation evaporator ?
Chemical Heat Transfer

“The ratio of the total emissive power to the absorptivity for all bodies is same at ther-mal equilibrium”. This is ______________ law?

“The ratio of the total emissive power to the absorptivity for all bodies is same at ther-mal equilibrium”. This is ______________ law?

A. Kirchoff’s
B. Planck’s
C. Wien’s displacement
D. Stefan-Boltzmann

Read More “The ratio of the total emissive power to the absorptivity for all bodies is same at ther-mal equilibrium”. This is ______________ law?
Chemical Heat Transfer

Conduction occurs in the buffer zone for a fluid flowing through a heated pipe, only when Prandtl number is________________?

Conduction occurs in the buffer zone for a fluid flowing through a heated pipe, only when Prandtl number is________________?

A. 0.1
B. > 1
C. < 1
D. 1

Read More Conduction occurs in the buffer zone for a fluid flowing through a heated pipe, only when Prandtl number is________________?
Chemical Heat Transfer

Prandtl number is given by__________________?

Prandtl number is given by__________________?

A. CP μ/a
B. hD/k
C. CP μ/k
D. μ/h CP

Read More Prandtl number is given by__________________?
Chemical Heat Transfer

Condensing film co-efficient for steam on horizontal tubes ranges from 5000 to 15000 Kcal/hr.m2.°C. Condensation of vapor is carried out inside the tube in a shell and tube heat exchanger, when the_________________?

Condensing film co-efficient for steam on horizontal tubes ranges from 5000 to 15000 Kcal/hr.m2.°C. Condensation of vapor is carried out inside the tube in a shell and tube heat exchanger, when the_________________?

A. Higher condensing film co-efficient is desired
B. Condensate is corrosive in nature
C. Lower pressure drop through the exchanger is desired
D. Temperature of the incoming vapor is very high

Read More Condensing film co-efficient for steam on horizontal tubes ranges from 5000 to 15000 Kcal/hr.m2.°C. Condensation of vapor is carried out inside the tube in a shell and tube heat exchanger, when the_________________?

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