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Chemical Engineering - Chemical Engineering Basics

Exercise : Chemical Engineering Basics - Section 15
11.
Theoretical volume of oxygen required for complete combustion of 1Nm3 of acetylene, in oxy-acetylene welding is __________ Nm3 .
0.5
1
2
2.5
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
Out of the following, the joint produced by __________ has the lowest strength.
soldering
welding
brazing
rivetting
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
Dies for wire drawing are generally made of
mild steel
stainless steel
carbides
high carbon steel
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
The starting of a car takes time in winter, because the
octane number of fuel is decreased.
fuel supply for ignition is not sufficient.
vaporisation of the fuel is decreased.
pour point of fuel decreases.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
The elastic strain in copper is due to the
motion of dislocations.
stretching of atomic bonds.
breakage of atomic bonds.
none of the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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