Answer / Ramesh Singh

The specific technical questions in a written test for Chemical Engineering will depend on the course and level of the exam. Some common types of questions may include:

1. Calculation problems involving chemical reactions, stoichiometry, or unit conversions.
2. Problems related to thermodynamics, such as calculating heats of reaction, enthalpy changes, or phase equilibrium.
3. Design problems that require the application of engineering principles and concepts to create a chemical process or plant.
4. Questions about kinetics, such as determining reaction rates, mechanisms, or activation energies.
5. Problems related to separation processes, such as distillation, extraction, or chromatography.

What would happen if the suction pressure is low in a boiler feed water pump?

7 Answers   CPCL, Kelvin Power Station,

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How much steam required for 1MW power production form 30 bar G super heated steam(350 C), outlet of turbine 4.5 bar

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Explain the strategies acquired to cure tube vibration and exchangers in a shell?

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white rust formation over zinc plated and yellow passivated fasteners during CED painting. WHY?

1 Answers   Wheels India,

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Explain what is a quick way to calculate frictional pressure drops in carbon steel pipe?

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What is the wet bulb globe temperature?

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Hi, This is Naveen, plz if anybody have experience of IOCL interview, send me question.

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REACTION ENGINEERING - EXAMPLE 13.1 : In a furnace, 2 chemical reactions are happening - 1 mole of solid carbon reacts with 1 mole of oxygen gas to generate 1 mole of carbon dioxide gas; 1 mole of solid carbon reacts with 0.5 mole of oxygen gas to generate 1 mole of carbon monoxide gas. In a given process, 100 kmol of carbon is burned in a furnace. (a) Calculate the theoretical oxygen gas needed by assuming that all the carbon is burned completely to carbon dioxide gas. (b) Calculate the theoretical air needed by assuming that all the carbon is burned completely to carbon dioxide gas and there is only 21 % of oxygen gas. (c) Determine the amount of air required (in kmol) if 50 % excess oxygen gas must be satisfied for (a) and (b). (d) It has latter been found that 20 % of the carbon undergoes incomplete combustion resulting to carbon monoxide gas production. The rest of the carbon undergoes complete combustion. Calculate the total oxygen gas required stoichiometrically based on the actual process.

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MASS TRANSFER - EXAMPLE 4.2 : In a non-dilute absorber, graphical method is used to represent the process. In an X - Y coordinate system, X-axis represents mole of carbon dioxide / mole of water and Y axis represents mole of carbon dioxide / mole of nitrogen. The inlet gas stream consists of 8 mol % of carbon dioxide in nitrogen. (a) Find the S / G minimum as a slope that goes through the point (0, 0.0304) and (0.0000488, 0.086957). (b) Find the actual slope of operating line when it is 1.5 times the S / G minimum! (c) Find the value of x for inlet gas stream when y = 1640 x, y is mole fraction of carbon dioxide in nitrogen.

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What are some common causes of gas pipeline vibration 20 carbon steel line?

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Explain what are the advantages of using gear pumps?

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DIFFERENTIAL EQUATIONS - EXAMPLE 20.1 : By using Excel program either on laptop or desktop PC, solve the differential equation dy / dx = -2y + x + 4 with h = 0.005, initial values : x = 0, y = 1. The 4th order Runge-Kutta method provides : y(N + 1) = y(N) + (1/6) (k1 + 2k2 +2k3 + k4), k1 = h [ -2y(N) + x(N) + 4 ], k2 = h { -2 [ y(N) + k1 / 2 ] + x(N) + h / 2 + 4 }, k3 = h { -2 [ y(N) + k2 / 2 ] + x(N) + h / 2 + 4 }, k4 = h { -2 [ y(N) + k3 ] + x(N) + h + 4 }. What is the value of y at x = 0.5?

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