Chemical Engineering · all questions

Chemical Engineering Basics
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Q121

Parallel straight line pattern of temperature distribution for both hot and cold fluids is observed in case of heat exchanger of the type

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Q122

Source of heat supply in a cupola is

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Q123

Which of the following is an example of cathodic protection of metals against corrosion ?

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Q124

Pipelines carrying various utilities in chemical industries are identified by their colour codes. The color of pipeline carrying steam is

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Q125

The basic function of the drum in a boiler is to

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Q126

Unit of viscosity in CGS system is

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Q127

Buoyancy force depends on the __________ the liquid.

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Q128

Which one is neutral in character?

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Q129

What is the effect on the performance of the economiser in the thermal power plant boiler, if the feed water temperature is very low due to preheaters being out for repairs or starving of steam supply ?

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Q130

Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect of free convection over a vertical flat plate as

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Q131

__________ is the most important element, which controls the physical properties of steel.

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Q132

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

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Q133

Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the

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Q134

The property of material, by which a given amount of energy is absorbed by it, without plastic deformation is called

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Q135

Filler material used in welding having the lowest melting point out of the following is

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Q136

A cylinderical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson's ratio of the rod is

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Q137

Lime contains about 90% CaO. Percentage CaO present in limestone is about

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Q138

Limestone addition in the blast furnace is done to flux __________ present in the raw materials.

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Q139

The most detrimental impurity in high pressure boiler feed water is

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Q140

Air/fuel ratio by weight for combustion of methane with theoretical quantity of air will be about

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