Chemical Heat Transfer

An ejector is used to__________________?

Byadmin March 2, 2019August 24, 2021

An ejector is used to__________________?

A. Increase pressure
B. Increase temperature
C. Remove condensate
D. None of these

Chemical Heat Transfer

In a liquid-liquid heat exchanger, for the same process temperature, the ratio of the LMTD in parallel flow to the LMTD in counter flow is always__________________?

In a liquid-liquid heat exchanger, for the same process temperature, the ratio of the LMTD in parallel flow to the LMTD in counter flow is always__________________?

A. < 1
B. > 1
C. 1
D. ∞

Read More In a liquid-liquid heat exchanger, for the same process temperature, the ratio of the LMTD in parallel flow to the LMTD in counter flow is always__________________?
Chemical Heat Transfer

Critical value of the _____________ number governs the transition from laminar to turbulent flow in free convection heat transfer?

Critical value of the _____________ number governs the transition from laminar to turbulent flow in free convection heat transfer?

A. Grashoff
B. Reynolds
C. Both ‘a’ & ‘b’
D. Prandtl & Grashoff

Read More Critical value of the _____________ number governs the transition from laminar to turbulent flow in free convection heat transfer?
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

Steam traps are provided in steam carrying pipelines to_________________?

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

Read More Steam traps are provided in steam carrying pipelines to_________________?
Chemical Heat Transfer

A measure of the extent to which viscous heating is important relative to the heat flow resulting from the impressed temperature difference is represented by the _______________ number?

A measure of the extent to which viscous heating is important relative to the heat flow resulting from the impressed temperature difference is represented by the _______________ number?

A. Condensation
B. Grashoff
C. Stanton
D. Brinkman

Read More A measure of the extent to which viscous heating is important relative to the heat flow resulting from the impressed temperature difference is represented by the _______________ number?
Chemical Heat Transfer

Kg of liquid evaporated per hour in an evaporator is defined as its_________________?

Kg of liquid evaporated per hour in an evaporator is defined as its_________________?

A. Capacity
B. Economy
C. Steam load
D. None of these

Read More Kg of liquid evaporated per hour in an evaporator is defined as its_________________?

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