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Chemical Engineering Basics

Chemical Engineering Basics
Carbon is present in the form of __________ in grey cast iron.

Cementite
Flakes
Nodular aggregates of graphite
Spheroids

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Chemical Engineering Basics
Factor of safety is the ratio of the __________ stress to the working stress.

Bearing
Tensile
Compressive
Yield

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Chemical Engineering Basics
Which of the following metals is the most prone to work hardening?

Aluminium
Lead
Copper
Brass

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Chemical Engineering Basics
For a thermodynamic system undergoing a process, which of the following pairs best expresses the relationship similar to that expressed by the pressure volume plot ?

Temperature - entropy
Enthalpy - entropy
Enthalpy-pressure
Temperature - pressure

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Chemical Engineering Basics
The ratio of thermal & electrical conductivity is same for all the metals at the same temperature ; and at around room temperature, this ratio is proportional to(where, T = absolute temperature, °K)

T²
1/T
T
1/T²

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Chemical Engineering Basics
Transformation range for ferrous material is the temperature interval during which __________ is formed during its heating.

Cementite
Martensite
Austenite
Pearlite

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