Answer / ishan

Causes of such problems can fall into one of two categories: Material strength or Bin Geometry. In some cases, the combination of gravitational and frictional forces at some point in the container causes the solids to arch or bridge. So nearly all large bins contain an "arch-breaker" ( an upward pointing shallow metal cone set near the bottom) and can be stopped also because of rat flow (or) erratic material flow.

how does the properties of an element changes by increasing protons and electrons?

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What is Vacuum? If pressure is less than that of atmospheric, can we call it vacuum? If so some places have less atmospheric pressures, can we call people living there are living in vacuum?

5 Answers   ISRO, TCS,

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what is the difference between psv and prv?

2 Answers   Cairn,

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what is the use of pressure filter?

7 Answers   TATA,

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Explain how do you design a vapor-liquid separator or a flash drum?

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When specifying a cooling tower, should I look up historic wet bulb temperatures for my area or should I take measurements?

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I want to need previous placement questions of Jindal

1 Answers   Jindal, Jindal Steel and Power,

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QUANTUM COMPUTING - EXAMPLE 32.5 : In quantum teleportation, let (C0 + D1) (00 + 11) = C000 + C011 + D100 + D111. Ba = 00 + 11, Bc = 10 + 01, Be = 00 - 11, Bm = 10 - 01. (a) Find the values of 00, 01, 10 and 11 in term of Ba, Bc, Be and Bm. (b) Prove by calculation that (C0 + D1) (00 + 11) = 0.5 [ Ba (C0 + D1) + Bc (C1 + D0) + Be (C0 - D1) + Bm (-C1 + D0) ].

1 Answers  

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How many pounds (lb) are available in 1 kilogram (kg), 1 metre (m) has how many feet (ft) and 1 meter (m) has how many inches (in)?

1 Answers  

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send previousyear question paper for ongc gt 2011 chemical engineering written exam

0 Answers   ONGC,

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PROCESS CONTROL - EXAMPLE 6.2 : A stream with volumetric flow rate Q enters a cylindrical tank and a stream with volumetric flow rate q exits the tank. The fluid has a constant heat capacity and density. There is no temperature change or chemical reaction occurring in the tank. Develop a model for determining the height of the tank, h. Let V is the volume, A is the cross sectional area, r is the density, m is the mass, where V and A are for the tank, r and m are for the fluid. The rate of mass of fluid accumulation, dm / dt = (Q - q) r. Prove the model to be dh / dt = (Q - q) / A.

1 Answers  

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Question 52 - The half-life for first order reaction could be described in the differential equation dC / dt = -kC where k is a constant, C is concentration and t is time. (a) Find the equation of C as a function of t. (b) Find the half life for such reaction or the time required to reduce 50 % of the initial concentration, where k = 0.139 per minute. (c) When the initial concentration Co is 16 mol / cubic metre, how long does the reaction required to achieve the final concentration of 1 mol / cubic metre?

1 Answers  

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