Exam Details
| Subject | chemical engineering | |
| Paper | paper 2 | |
| Exam / Course | indian forest service | |
| Department | ||
| Organization | union public service commission | |
| Position | ||
| Exam Date | 2004 | |
| City, State | central government, |
Question Paper
Paper-II
Section A
Answer any four of the following
Explain the graphical procedure for finding the concentrations in a series of mixed reactor
A solution of FeCl3 in water contains 64.1% FeC13 by weight. Calculate the yield of FeC13.6H2O crystals obtained from 1000 kgs solution, if cooled to 27° C. Solubility at 27° C 68.3% by weight
Derive the following relation from the fundamentals
Explain the procedure to calculate the bubble pressure 8 dew pressure for a given ideal Binary mixture
Derive the performance equation for a given 1st order Ideal CSTR operating at steady-state conditions
A Producer gas with composition by volume 27.3% CO, 5.4% CO2, 0.6% O2, 66.7% N2 is burnt with 20% excess air. If the combustion is 98% complete, calculate the composition, by volume, of the flue gas
Substance A in a liquid reacts to produce R S as follows: A feed (CA0 CR0 CS0 enters two mixed reactors in series (i1 2.5 min, i2 5 min). Knowing the composition in the final reactor 1 1 1 CA 0.4, CR 0.4, CS 0.2, find the compositions leaving the 2nd reactor
The system n-pentane, n-hexane, n-heptane obeys Raoults law, for a system at 105° C. In a flash drum has overall composition of Z1 0.25, and Z2 0.45 Determine
Bubble pressure, Dew pressure and its composition.
L (Liquid rate), V (Vapour rate) and xiyi when
The data of Antoine's constants are:
Section B
Answer any four of the following
What are the various steps involved for calculating Total Product Cost
What is profitability? Discuss different methods for evaluating the profitability
Briefly explain the concept of straight and mixed fertilizers. List out various sources for the manufacture of Ammnonium sulphate
Describe in detail the activated sludge process
What is polymerization? Explain different methods of polymerization
The total capital investment for a chemical plant is Rs. 15, 00, 000 and the plant produces 30 laths kg of product annually. The selling price of the product is Re. 0.41/kg. Working capital amounts to 15% of total capital investment. Raw material costs for the products are Re. 0.045/kg, labour cost Re. 0.04/kg. Distribution costs are of the total product cost. Estimate:
Manufacturing cost/kg of product
Total product cost/year
Profit/kg of product before taxes
Answer the following questions
Describe with neat flow sheet the manufacture of soap by continuous process
With a neat flow sheet explain the manufacture of LDFE
Answer the following questions
Explain the thermal processes for the treatment of solid wastes
Discuss the various sources of air pollutants and their effect on man and his environment
Section A
Answer any four of the following
Explain the graphical procedure for finding the concentrations in a series of mixed reactor
A solution of FeCl3 in water contains 64.1% FeC13 by weight. Calculate the yield of FeC13.6H2O crystals obtained from 1000 kgs solution, if cooled to 27° C. Solubility at 27° C 68.3% by weight
Derive the following relation from the fundamentals
Explain the procedure to calculate the bubble pressure 8 dew pressure for a given ideal Binary mixture
Derive the performance equation for a given 1st order Ideal CSTR operating at steady-state conditions
A Producer gas with composition by volume 27.3% CO, 5.4% CO2, 0.6% O2, 66.7% N2 is burnt with 20% excess air. If the combustion is 98% complete, calculate the composition, by volume, of the flue gas
Substance A in a liquid reacts to produce R S as follows: A feed (CA0 CR0 CS0 enters two mixed reactors in series (i1 2.5 min, i2 5 min). Knowing the composition in the final reactor 1 1 1 CA 0.4, CR 0.4, CS 0.2, find the compositions leaving the 2nd reactor
The system n-pentane, n-hexane, n-heptane obeys Raoults law, for a system at 105° C. In a flash drum has overall composition of Z1 0.25, and Z2 0.45 Determine
Bubble pressure, Dew pressure and its composition.
L (Liquid rate), V (Vapour rate) and xiyi when
The data of Antoine's constants are:
Section B
Answer any four of the following
What are the various steps involved for calculating Total Product Cost
What is profitability? Discuss different methods for evaluating the profitability
Briefly explain the concept of straight and mixed fertilizers. List out various sources for the manufacture of Ammnonium sulphate
Describe in detail the activated sludge process
What is polymerization? Explain different methods of polymerization
The total capital investment for a chemical plant is Rs. 15, 00, 000 and the plant produces 30 laths kg of product annually. The selling price of the product is Re. 0.41/kg. Working capital amounts to 15% of total capital investment. Raw material costs for the products are Re. 0.045/kg, labour cost Re. 0.04/kg. Distribution costs are of the total product cost. Estimate:
Manufacturing cost/kg of product
Total product cost/year
Profit/kg of product before taxes
Answer the following questions
Describe with neat flow sheet the manufacture of soap by continuous process
With a neat flow sheet explain the manufacture of LDFE
Answer the following questions
Explain the thermal processes for the treatment of solid wastes
Discuss the various sources of air pollutants and their effect on man and his environment
Subjects
- agricultural engineering
- agriculture
- animal husbandary and veterinary science
- botany
- chemical engineering
- chemistry
- civil engineering
- english
- forestry
- general knowledge
- geology
- mathematics
- mechanical engineering
- physics
- statistics
- zoology