Answer / ramesh y

Cv value in valve is called Flow coefficient or flow
capacity rating of valve.

Answer / ammad

C.V means coefficient of flow...and it is defined as the volume (in US gallons) of water at 60°F that will flow per minute through a valve with a pressure drop of 1 psi across the valve. It is DIMENSIONLESS.

Answer / satya.g

CV of the valve means simply we can say capacity of the valve.

what is the PH of earth? does earth is neutral like ph value 7 for water indicating water is neutral?

0 Answers  

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What do you know about us?

4 Answers   Allfon, Bhushan Power Steel, CPCL, Crystol, Trident,

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ENGINEERING DRAWING - EXAMPLE 18.1 : For a Vernier scale of representative fraction (RF) = 1 / 25, calculate the length of the scale for the reading up to 4 metres.

1 Answers  

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For cement company what type of questions come in written exam?

1 Answers  

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Question 110 - When an algebraic product is defined on the space, the Lie bracket is the commutator [x,y] = xy - yx according to Lie algebra in mathematics. If [p,x] f(x) = px f(x) - xp f(x), p = -ih d / dx, find the value of [p,x] in term of i and h.

1 Answers  

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What step should be taken in process industries if the process variable is oscillating?

0 Answers   HPCL,

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Whether long question or short question I can expect in the interview at IOCL ?

0 Answers   IOCL,

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

0 Answers  

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Question 100 - (a) Time evolution in Heisenberg picture, according to Ehrenfest theorem is m (d / dt) < r > = < p >, where m = mass, r = position, p = momentum of a particle. If v = velocity, prove that m < v > = < p >. (b) Lande g-factor is given by Gj = Gl [ J (J + 1) - S (S + 1) + L (L + 1) ] / [ 2J (J + 1) ] + Gs [ J (J + 1) + S (S + 1) - L (L + 1) ] / [ 2J (J + 1) ]. If Gl = 1 and under approximation of Gs = 2, prove by calculation that Gj = (3/2) + [ S (S + 1) - L (L + 1) ] / [ 2J (J + 1) ].

1 Answers  

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Question 10 - In the US (United States), one barrel is equal to 42 US gallons and equivalent to 0.15898 cubic metres. One British barrel is equal to 36 Imperial gallons and equivalent to 0.163659 cubic metres. If an oil refinery in England sells 42 Imperial gallons of crude oil to a company in US, how much US gallons of crude oils has been sold?

1 Answers  

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which is the major cement producing state in western India ?

2 Answers   BNPM,

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Question 55 - The differential equation is 3 dy / dt + 2y = 1 with y(0) = 1. (a) The Laplace transformation, L for given terms are : L (dy / dt) = sY(s) - y(0), L(y) = Y(s), L(1) = 1 / s. Use such transformation to find Y(s). (b) The initial value theorem states that : When t approaches 0 for a function of y(t), it is equal to a function of sY(s) when s approaches infinity. Use the initial value theorem as a check to the answer found in part (a).

1 Answers  

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