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If the force is given by F=2x-y+z)i+ x+y-z^2)j +3x-2y+4z)k find the work done by a moving particle around a closed path C in the xy plane. If the circle has centre at the origin and radius 3 . Is this work done path independent??

A settling chamber that is 12 m long, 2 m high and 2 m wide processes 240 m³/m of air at a temperature of 75 Celsius. Determine the maximum size of the particle with specific gravity of 1.8 that is removed with a theoretical efficiency of 100 percent


3 kmol of gas A and 4 kmol of gas B are held in separate but equal volume containers. When they are mixed in a new container, again of equal volume the pressure reading is 10 bar. What is the partial pressure of A?


A mixture containing 10%ethanol and 90% water by weight is fed into a distillation column at the rate of 114.1kg/h.The distillate contains 76.4%ethanol and the distillate is produced at the rate of one tenth of that of the feed.perfom material balance and calculate the percentage of ethanol in the bottom.

The Stanton number is the equation that deals with the heat transferred into a fluid, compared to the thermal heat capacity of that fluid, true or false?

1. Explain why is important to identify hazards/dangers at the workplace. 2. Explain the implications if hazards/dangers are ignored in the workplace. 3. Mention common examples of accidents in a chemical plant or processing plant and how can they be avoided. 


The three major steps involved in Mineral Processing namely: Crushing, grinding and flotation. Please discuss the importance of each during mineral processing. 

 Discuss the importance of sustainability in mineral processing industry or business.


In a process for the manufacture of chlorine by direct oxidation of HCl with air over a catalyst to form C12 and H2O (only), the exit product is composed of HCI (4.4%), CZ (19.8%), 02 (4,0%), and N2 (52.0%). What was? a) The limiting reactant? b) The percent excess reactant? The degree of completion of the reaction? d) The extent of reaction

3. In incremental launching method of bridge construction, what are the measures adopted to enhance sufficient resistance of the superstructure during the launching process?


2. What is “preset” during installation of bridge bearings?


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