Explain what are the methods involved to test helium leak testing in a vacuum system?

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ACCOUNTING AND FINANCIAL ENGINEERING - EXAMPLE 34.4 : A university is enrolling new students of biochemical engineering degree. A long queue is formed during registration. Let L = rate of newcomers to a queue, m = number of clients served at a certain time, T = time in system. In M / M / 1 queue, let T = time waiting in a queue + service time, L = 2 / second, m = 3 / second. (a) Find the service time, A = 1 / m. (b) Calculate time waiting in a queue, B = A (L / m) / (1 - L / m). (c) What is the value of T?

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What is are the main terms in Unit Operations? and what is its charecteristics?

8 Answers   HPCL,

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What is the maximum recommended velocity for steam in a plant pipe network?

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Is there a rule of thumb to estimate the footprint of a cooling tower during design phase?

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Suggest the best book for barc written test guide me the syllabus

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

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What fluid first to be lined up in a heat exchanger whether hot or liquid?why?

2 Answers   TCL,

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Tell us about a time when you failed to meet a deadline. What were the repercussions?

4 Answers   Bhavani Engineering Works, Caltex, Emirates, Holiday Inn, Regent, United States Seafoods,

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Hi, I am in need of interview questions from Engineers india limited in chemical engineering.if any one has kindly post it to me soon.

0 Answers   Halliburton, IOCL,

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BIOPROCESS ENGINEERING - EXAMPLE 14.1 : In differential centrifugation of cells with diameter D in centimeter, the square of D is given by D x D = [18n ln (RF / RI) ] / [ (RP - RFF) Wt ] where n is the fluid viscosity (poise), RF is the final radius of rotation (cm), RI is the initial radius of rotation (cm), RP is cell density (g / ml), RFF is the fluid density (g/ml), W the square for the rotational velocity in (radians / s) (radians / s), t is the time required to sediment from RI to RF (s). Derive an equation for W as a function for D, n, RF, RI, RP, RFF and t, with the stated units above, in radian & degree.

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ACCOUNTING AND FINANCIAL ENGINEERING - EXAMPLE 34.31 : In a biochemical engineering company, let the actual revenue generated = A, actual cost incurred = B. According to the standard budget, the revenue generated = C, cost incurred = D. (a) Find the profit according to : (i) actual situation; (ii) standard budget. (b) Calculate the Variance Due to Price and Efficiency in : (i) revenue generated; (ii) cost incurred; (iii) profit. (c) If E > F where > represents : more than, find the 4 pairs of values of E and F in favorable conditions.

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