how much type question asking sulfuric acid plat interview. if not maintain acid temp. and conc. what will happen

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What are the some common problems associated with dense phase pneumatic conveying?

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For what ration of Lengh/Dia. of tank (Jacketed tank), maximum heat transfer area is available?

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what is ifference between PFR ,MFR and batch reactor?

9 Answers   BARC, IOCL,

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According to Shockley equation, the I – V characteristic of a diode is approximated by I = IS [ exp (nVD / VT) – 1 ]. For silicon, let the reverse bias saturation current IS as 0.000000000001. If n is ideality factor with value of 1.5, VT as thermal voltage drop of 0.026 V at room temperature, what is the value of current I that passes through the silicon diode in the heater of evaporator when the forward voltage drop VD = 0.026 V? Please take note that exp is the exponential function with e(1) = 2.718, e(2) = 7.389.

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ACCOUNTING AND FINANCIAL ENGINEERING - EXAMPLE 34.32 : In the calculation of the total cost of production of an engineering material, a linear equation Y = MX + C could be applied. Let T = total cost, F = fixed cost, V = variable cost, Q = quantity produced, W = variable cost per unit produced. Form a linear equation that relates : (a) T, F and V; (b) V, Q and W.

1 Answers  

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What is the process of including heat exchangers in ammonia refrigeration system?

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How i can calculate heat transfer in reactor at unsteady state and what data should i have? I want equation and process to calculate it? As there is steam or brine in jacket

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How can you determine the largest impeller that a pump can handle?

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Are you having any experience in antibody designing?

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how will we calculate the heat of formation through electron...??

0 Answers   BARC,

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Question 102 - (a) As an approximation, let v = Zc / 137 where v is the radial velocity for 1 s electron of an element, c is the speed of light, Z is the atomic number. For gold with Z = 79, find the radial velocity of its 1 s electron, in term of c and percentage of the speed of light. (b) As an approximation, let A x A = 1 - Z x Z / 18769 where A is the ratio of the relativistic and non-relativistic Bohr radius. Find the value of A.

1 Answers  

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