IndiaBIX

Chemical Engineering - Heat Transfer

Exercise : Heat Transfer - Section 3
11.
A 2-4 heat exchanger involves
only counter-flow of fluids.
only parallel-flow of fluids.
both counter and parallel-flow of the fluids.
smaller pressure drop compared to 1-2 exchanger.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
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
< 1
> 1
1
∞
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
With increase in temperature, the thermal conductivity of steel
increases
decreases
remains unchanged
increases exponentially
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
Which of the following forced convection heat transfer equation accounts for the liquid viscosity effect for viscous liquids ?
Dittus-Boeltier equation
Sieder-Tate equation
Nusselt equation
None of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
The main function of baffles provided in a shell and tube heat exchanger is to
facilitate the cleaning of outer tube surface.
enhance turbulence.
hold the tubes in position.
all 'a', 'b' & 'c'.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers