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Chemical Engineering - Chemical Engineering Basics

Exercise : Chemical Engineering Basics - Section 13
1.
Maraging steels derive their strength from the following mechanism:
A fine, highly dislocated and strong martensite.
Fine dispersions of intermetallics of Fe, Ni, Ti etc.
Fine dispersions of alloy carbides in a ferrite matrix.
Fine dispersions of Fe3 C nucleated on dislocations in austenite.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
Ceramic compounds as compared to metallic compounds
crystallise faster.
resist greater tensile stress at room temperature.
have higher melting temperature.
are better conductor of electricity at higher temperature.
Answer: Option
Explanation:
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3.
Pressure exerted by a liquid depends upon its
surface tension
density
viscosity
buoyancy
Answer: Option
Explanation:
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4.
The most detrimental impurity in high pressure boiler feed water is
suspended salt
dissolved salt
silica
turbidity
Answer: Option
Explanation:
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5.
Pick out the wrong statement.
A soft magnetic material should have high permeability and small area of hysterisis loop.
Poisson's ratio of high melting point metals is more than unity.
Solders generally melt at less than 185°C.
Steel produced by B.O.F process is ideally suited for manufacturing flat product.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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