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Chemical Engineering Basics

Chemical Engineering Basics
Out of the following, the dimensionless quantity is

Density
Mach number
Viscosity
Specific weight

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

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Chemical Engineering Basics
Friction factor for fluid flow in pipe does not depend upon the

Pipe roughness
Pipe length
Mass flow rate of fluid
Fluid density & viscosity

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Chemical Engineering Basics
Source of heat supply in a cupola is

Coke
Lumpy coal
Charcoal
Pulverised coal

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Chemical Engineering Basics
If the head is doubled in & centrifugal pump, the power required will increase in the ratio of

25/2
23/2
21/3
23

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

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

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