Answer / singo

for hpcl go trough o.p.gupta for technical paper, and for
apptitude follow r.s.agarwal.

Answer / bala

surely will send to my friend

Answer / jitendra

go to the freshersworld.com and follow the placement paper
for hpcl

What is the main difference between deflection and null type instruments?

1 Answers  

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What is the largest application for surfactants?

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What is a good source of equations for calculating discharge flowrates from accidental releases?

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Please help to get IOCL/HPCL or other chemical engineering paper pls send kathir_skv@yahoo.com Regards, kathirvel

0 Answers   Essar,

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

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What are the criteria’s involved in choosing mass balances for components?

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BIOCHEMICAL ENGINEERING INSTRUMENTATION - EXAMPLE 29.6 : In infrared spectrum, one of the factors affecting peak location is the mass of the atoms. The stretching frequency of a bond connected to a lighter atom will be greater than the same bond connected to a heavier atom. (a) For halogens like florine (F), chlorine (Cl), bromine (Br), iodine (I) and astatine (At), what is their IUPAC group number? Hint : The proton numbers for F, Cl, Br, I and At are 9, 17, 35, 53 and 85 respectively. (b) For the compounds of H-F, H-Cl, H-Br, H-I and H-At, which one has the lowest stretching frequency and which one has the highest stretching frequency? State the reasons.

1 Answers  

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PROCESS DESIGN - EXAMPLE 21.2 : The names of the flow streams could be represented by : H1 for first hot stream, H2 for second hot stream, C1 for first cold stream, C2 for second cold stream. Data of supply temperature Ts in degree Celsius : 150 for H1, 170 for H2, 30 for C1, 30 for C2. Data of target temperature Tt in degree Celsius : 50 for H1, 169 for H2, 150 for C1, 40 for C2. Data of heat capacity Cp in kW / degree Celsius : 3 for H1, 360 for H2, 3 for C1, 30 for C2. (a) Find the enthalpy changes, dH for all streams of flow H1, H2, C1 and C2 in the unit of kW. Take note of the formula dH = (Cp) (Tt - Ts). (b) Match the hot streams H1 and H2 with the suitable cold streams C1 and C2 to achieve the maximum energy efficiency.

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What are the chemicals are required for cooling tower passivation? Please mail me in my Email id:-nsput2000@gmail.com

3 Answers  

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Why methanol like petroleum compounds are stored in underground storage tanks?

2 Answers   MPCL, NFIL, Reliance, UPL,

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distillation types (vacuum, azeotropic, steam, extractive)

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How can you estimate the efficiency of a pump?

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