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Chemical Engineering - Chemical Engineering Basics

Exercise : Chemical Engineering Basics - Section 18
36.
Hardness & tensile strength of austenitic stainless steel can be increased by
martempering
cold working
normalising
hardening
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
Which of the following metals occurs in nature in their free metallic state ?
Au & Ag
Pb & Zn
Cu & Ni
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
The most suitable material for a sewer for carrying storm water is
asbestos cement
cast iron
mild steel
cement concrete
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
In a totally irreversible isothermal expansion process for an ideal gas, ΔE = 0, ΔH = 0. Then ΔQ and ΔS will be
ΔQ = 0, ΔS=0
ΔQ = 0 , ΔS = +ve
ΔQ = 0, ΔS = -ve
ΔQ = +ve , ΔS= +ve
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
Sulphur is melted in the sulphuric acid plant most commonly by employing
electrical heater
steam heater
direct fuel oil fired heater
gas fired furnace
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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