CHEMICAL ENGINEERING | Materials and Construction

Zinc is not used

Byadmin August 29, 2022

Question: Zinc is not used
[A].

for producing zinc base die casting alloys.

[B].

in its oxide form as pigments.

[C].

as anode for corrosion prevention in boiler.

[D].

as an alloying element in various bronzes.

Answer: Option D

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Chemical Process

Pasteurisation of milk means

Question: Pasteurisation of milk means
[A].

removal of fatty and albuminous substance from it.
[B].
killing of organisms present in it by heating it at controlled temperature without changing its natural characteristics.
[C].
inhibiting the growth of micro-organisms without killing them.
[D].
none of these.

Answer: Option B

Explanation:

No answer description available for this question.

Read More Pasteurisation of milk means
CHEMICAL ENGINEERING

Which of the following hardness tests does not measure the indentation hardness of metals and alloys ?

Which of the following hardness tests does not measure the indentation hardness of metals and alloys ?

A. Vickers hardness test
B. Shore scleroscope test
C. Brinell hardness test
D. Rockwell hardness test

Read More Which of the following hardness tests does not measure the indentation hardness of metals and alloys ?
Materials and Construction

_____________ of a material results, when its strength is increased & ductility is decreased by heating at a relatively lower temperature after cold working?

_____________ of a material results, when its strength is increased & ductility is decreased by heating at a relatively lower temperature after cold working?

A. Solid solution hardening
B. Screw dislocation
C. Strain ageing
D. Twinning

Read More _____________ of a material results, when its strength is increased & ductility is decreased by heating at a relatively lower temperature after cold working?
CHEMICAL ENGINEERING | Chemical Reaction Engineering

For the reversible reaction A 2B, if the equilibrium constant K is 0.05 mole/litre; starting from initially 2 moles of A and zero moles of B, how many moles will be formed at equilibrium ?

Question: For the reversible reaction A 2B, if the equilibrium constant K is 0.05 mole/litre; starting from initially 2 moles of A and zero moles of B, how many moles will be formed at equilibrium ?
[A].

0.253
[B].
0.338
[C].
0.152
[D].
0.637

Answer: Option B

Explanation:

No answer description available for this question.

Read More For the reversible reaction A 2B, if the equilibrium constant K is 0.05 mole/litre; starting from initially 2 moles of A and zero moles of B, how many moles will be formed at equilibrium ?
CHEMICAL ENGINEERING | Chemical Reaction Engineering

For a __________ order chemical reaction, , the half life period is independent of the initial concentration of the reactant A.

Question: For a __________ order chemical reaction, , the half life period is independent of the initial concentration of the reactant A.
[A].

zero
[B].
first
[C].
second
[D].
third

Answer: Option B

Explanation:

No answer description available for this question.

Read More For a __________ order chemical reaction, , the half life period is independent of the initial concentration of the reactant A.
CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

Consider the reaction, C + O2 CO2 ;ΔH = – 94 kcal. What will be the value of ΔH for the reaction CO2 C + O2 ?

Question: Consider the reaction, C + O2 CO2 ;ΔH = – 94 kcal. What will be the value of ΔH for the reaction CO2 C + O2 ?
[A].

-94 kcal
[B].
+ 94 kcal
[C].
> 94 kcal
[D].
< -94 kcal

Answer: Option B

Explanation:

No answer description available for this question.

Read More Consider the reaction, C + O2 CO2 ;ΔH = – 94 kcal. What will be the value of ΔH for the reaction CO2 C + O2 ?

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