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Chemical Engineering Basics

Chemical Engineering Basics
Hydrogen in liquid steels is dissolved

In the atomic form
In the molecular form
As tiny gas bubbles
In the ionic form

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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
The main function of the deaerator used in the thermal power plant is to

Enhance feed water temperature
Remove non-condensable gases from condenser
Remove dissolved gases from feed-water
Throttle down the steam pressure

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Chemical Engineering Basics
__________ is the hardest oxide and is hence used where high wear resistance at high temperature is required.

Zirconia
Beryllia
Alumina
Magnesia

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Chemical Engineering Basics
Inspection of surface and sub-surface cracks in non-magnetic alloys is done by __________ testing method.

Magnetic particle
Ultrasonic
X-ray
Dye penetrant

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Chemical Engineering Basics
Function of feed check valve in a boiler is to

Check the water level in the boiler drum
Regulate the water flow to boiler
Facilitate circulation of high pressure feed water
Prevent the back flow of water

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