Answer / Satkretu Singh

For Vedanta written test preparation in Chemical Engineering, I would recommend studying the following topics: Thermodynamics, Transport Phenomena (Heat and Mass Transfer, Fluid Mechanics), Kinetics, Chemical Reactor Design, Separation Processes, Unit Operations, and Process Control. You can find study materials online or consult textbooks such as Perry's Chemical Engineering Handbook. Also, practice solving problems from previous test papers if available.

why Torispherical heads are used in pressure vessels?

1 Answers   India Cements,

---

what is meaning of pid how it is useing controlers

4 Answers  

---

CHEMICAL MATERIAL BALANCE – EXAMPLE 2.2 : Three hundred gallons of a mixture containing 75.0 wt % ethanol and 25 wt % water (mixture specific gravity = 0.877) and a quantity of a 40.0 wt % ethanol - 60 wt % water mixture (specific gravity = 0.952) are blended to produce a mixture containing 60.0 wt % ethanol. The specific gravity of a substance is the ratio of density of a substance compared to the density of water. The symbol of weight percent is wt %. (a) Estimate the specific gravity of the 60 % mixture by assuming that y = mx c where y is wt % ethanol, x is mixture specific gravity. Values for m and c are constants. (b) Determine the required volume of the 40 % mixture.

1 Answers  

---

Is it advisable to cool a fin fan by spraying demineralized water on it?

1 Answers  

---

MASS TRANSFER - EXAMPLE 4.1 : A concentric, counter-current heat exchanger is used to cool lubricating oil. Water is used as the coolant. The mass flow rate of oil into the heat exchanger is 0.1 kg / s = FO. For oil, the inlet temperature TIO = 100 degree Celsius and the outlet temperature TOO = 55 degree Celsius. For water, the inlet temperature TIW = 35 degree Celsius and the outlet temperature TOW = 42 degree Celsius. What is the mass flow rate of water in kg / s, FW needed to maintain these operating conditions? Constant for heat capacity of oil is CO = 2131 J /(kg K) and for water is CW = 4178 J /(kg K). Use the equation (FO)(CO)(TIO ?TOO) = (FW)(CW)(TOW ?TIW).

1 Answers  

---

Explain some common piping materials used to transport slurries?

1 Answers  

---

Are there any methods of preventing cracking of carbon steel welds in refining environments?

1 Answers  

---

HOw to derive reynolds equation?

1 Answers  

---

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

1 Answers  

---

Question 60 – During the landing process of an airplane, the velocity is constant at v. (a) If the displacement of the plane is x at time t, find the differential equation that relates t, x and v. (b) The plane has 2 parts of wheels – the front and the back, separated by a distance L. The front part of the wheel touches the land first, that allows the straight body of the plane to form an angle T with the horizontal land. If the vertical distance between the back part of the wheel and the horizontal land is y, find the equation of y as a function of L and T. (c) Find the differential equation that relates dy as a function of dt, v and sin T. (d) Find the differential equation that consist of dy as a function of y, L, v and dt. (e) Find the equation of y as a function of v, L, t and C where C is a constant. (f) When t = 0, prove that y = exp C as the initial value of y.

1 Answers  

---

Are there flow velocity restrictions to avoid static charge build up in pipelines?

1 Answers  

---

what is water at its saturation temperature ??????????

2 Answers   Essar,

---