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

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

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Chemical Engineering Basics
Which of the following are made out of the carbon steel having carbon content of 0.9 to 1% ?

Small punches, broaches reamers and springs
Cutlery, screws, rivets and files
Forgings like can shaft, structural steel plate, threading dies and drawing dies
Mandrels, twist drills, small lathe tools and razors

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