Graetz number is given by
Question: Graetz number is given by
[A].
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
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If h1 = inner film co-efficient and /h2 = outer film co-efficient, then the overall heat transfer co-efficient is
Question: 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 Answer: Option B
Explanation:
No answer description available for this question.
Between 230 and 370°C, blue brittleness is caused in mild steel because of the_________________?
Between 230 and 370°C, blue brittleness is caused in mild steel because of the_________________?A. Immobility of dislocation
B. Strain-ageing
C. Increase in Young’s modulus
D. Strain hardeningIn liquid-liquid extraction, the number of phases at plait point is
Question: In liquid-liquid extraction, the number of phases at plait point is
[A].1 [B].
2 [C].
3 [D].
4 Answer: Option A
Explanation:
No answer description available for this question.
Design calculation for multiple component distillation is done by
Question: Design calculation for multiple component distillation is done by
[A].Ponchon-Savarit method [B].
Mccabe-Thiele method [C].
enthalpy concentration method [D].
tray to tray calculations. Answer: Option D
Explanation:
No answer description available for this question.
In the reaction; N2 + O2 2NO, increasing the pressure will result in
Question: In the reaction; N2 + O2 2NO, increasing the pressure will result in
[A].shifting the equilibrium towards right, [B].
shifting the equilibrium towards left. [C].
no change in equilibrium condition. [D].
none of these. Answer: Option C
Explanation:
No answer description available for this question.
Minimum porosity for fluidisation is
Question: Minimum porosity for fluidisation is
[A].that corresponding to static bed. [B].
that corresponding to completely fluidised bed. [C].
the porosity of the bed when true fluidisation begins. [D].
less than that of the’ static bed. Answer: Option C
Explanation:
No answer description available for this question.