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Chemical Engineering - Chemical Engineering Basics

Exercise : Chemical Engineering Basics - Section 16
41.
A good abrasive
should be friable.
should have low refractoriness.
is made up of large size of crystals.
should be soft.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
Out of the following, __________ pipe is the least corrosion resistant.
mild steel
copper
wrought iron
stainless steel
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
In order to protect the aquatic creatures, the dissolved oxygen content in fresh water stream should never be less than __________ PPm.
0.5
1
5
20
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm3) while the C.V. is same on weight basis (i.e., kcal/kg) ?
Propane and acetylene
Propane and LPG
Sewage gas and gobar gas
B.F gas and coke oven gas
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
Sheardising process is used for
surface coating.
heat treatment of high speed steel.
cold working on metals.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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