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Chemical Engineering - Chemical Engineering Basics

Exercise : Chemical Engineering Basics - Section 22
36.
In a titration involving weak acid and strong base, the preferred indicator is
Methyl orange
Phenolphthalein
Ethyl orange
Fehling's solution
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area ; in the casting)
V/A
V/A2
V2/A
V2/A2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
Pick out the wrong statement.
Annealing twins are not observed in pure aluminium, because it has higher strain energy.
Load during cold rolling can be lowered by the application of front tension.
Very fine grain structure is desirable for high temperature creep application of materials.
Soft magnetic materials are those which have less area within the hysterisis loop.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
Minimum diameter of the tube used for making water manometer should be __________ mm to avoid a correction for the effect of capillarity.
1
2.5
4
6
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
Which of the following heat treatment processes is used for softening the hardened material ?
Normalising
Tempering
Annealing
None of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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