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Chemical Engineering Basics

Chemical Engineering Basics
Creep consideration is the most important in case of the

Blades of gas turbines
Cast iron pipes
Steam engine flywheel
Cycle chains

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Chemical Engineering Basics
For the same heat input & compression ratio, efficiency of Otto cycle is higher than that of diesel cycle, because in Otto cycle.

Maximum temperature is higher
Combustion is at constant volume
Expansion & compression are isentropic
Heat rejection is lower

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Chemical Engineering Basics
Pipelines carrying various utilities in chemical industries are identified by their colour codes. The color of pipeline carrying steam is

Yellow
Green
Silver grey
Black

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Chemical Engineering Basics
Dezincification is a form of corrosion, which specifically applies to

Stainless steel
Brass
Babbit metal
Steel

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Chemical Engineering Basics
__________ is the most important element, which controls the physical properties of steel.

Manganese
Vanadium
Carbon
Silicon

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Chemical Engineering Basics
Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as

Re-0.8, Re0.5
Re0.8, Re-0.5
Re0.8, Re0.5
Re0.5, Re0.8

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