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Chemical Engineering Basics

Chemical Engineering Basics
__________ is the most suitable lubricant for drawing mild steel wires?

Sodium stearate
Water
Kerosene
Lime water

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Chemical Engineering Basics
Which of the following metals reacts violently with water ?

Magnesium
Calcium
Sodium
Mercury

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Chemical Engineering Basics
A jig is used while __________ a hole.

Drilling
Boring
Counter boring
Enlarging

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Chemical Engineering Basics
Cold cracking in the heat affected zone of a high strength steel weld can take place because of the

Martensite formation
Retained austenite
Relatively high sulphur content in the base metal
Sufficient hydrogen present in the welding arc

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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 ?

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

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Chemical Engineering Basics
The most suitable material of construction for a sewer to carry sewage under high pressure is

Stoneware
Steel
Cement concrete
Asbestos cement

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