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Chemical Engineering · all questions

Chemical Engineering Basics
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In a neutral solution

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In an isochoric process,

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The passage between the nozzle and the __________ is called 'sprue' in case of injection moulding.

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Heat dissipation in cooling towers is mainly by

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Yield strength of a polycrystalline metal with an average grain size d, is proportional to

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Presence of sulphur in the fuel fired in a furnace

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__________ furnace is generally used in the non-ferrous foundaries.

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Which of the following metals occurs in nature in their free metallic state?

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Steels with high carbon equivalent have poor weldability, because in these steels during welding

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In a counter flow heat exchanger, hot fluid enters at 170°C & leaves at 150°C, while the cold fluid enters at 50°C & leaves at 70°C. The arithmetic mean temperature difference in this case is __________ °C.

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Dislocation cross-slip is difficult in those materials, which have

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The most economical channel section for the fluid flow is the one for which the discharge is maximum for a given cross-sectional area. Vertical velocity distribution in an open channel for laminar flow can be assumed to be

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__________ the exhaust gas is an indication of the incomplete combustion of fuel.

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The softness or hardness of a grinding wheel depends upon the type & amount of bonding material used. For general purpose cutter grinding __________ grinding wheel is normally used.

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Glycerene is used as a coolant in cooling of some engines instead of water, because

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For the running of power generating turbines, the steam used should be

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The material used for coating the welding electrode is termed as the

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Drossing is a __________ operation.

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Grinding wheel made of silicon carbide is most suitable for grinding materials of low tensile strength (e.g; tough bronze). Grinding is a __________ operation.

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In an amorphous material, atoms defy any definite atomic structure and exist in random pattern just like in liquid. Which of the following is an amorphous material?

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