Safety In Process Industries B.E Question Paper : jaduniv.edu.in

Name of the University : Jadavpur University
Department : Chemical Engineering
Degree : B.E
Subject Name : Safety In Process Industries
Sem : II
Website : jaduniv.edu.in
Document Type : Model Question Paper

Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/dspace.jdvu.ac.in/6583-SAFETY%20IN%20PROCESS%20INDUSTRIES_ELECTIVE%20III%20_Seme2_2006.pdf

Safety In Process Industries Question Paper :

B. Chemical Engg. Final Examination, 2006 :
( 2nd Semester ) – ( Elective III )
Time : Three hours
Full Marks : 100

Related : Jadavpur University Chemical Process Synthesis B.E Question Paper : www.pdfquestion.in/6579.html

Answer any five questions :
1. a) What are the different ignition source of plant fire. 4
b) Write different causes of plant fire. 6
c) Discuss about the fire protection and prevention methods used in industry. 10

2. Discuss about the various types of potential hazard and its remedial measures in case of Reactors and Heat Exchangers. 10+10

3. With the help of examples, state the possibilities of accidents that may be caused by human error from the following cases.
a) Wrong valve closed
b) Wrong valve opened
c) Abnormal reading unnoticed on panel instrument. 20

4. What are the different types of plant explosions that are often encountered in industry. Mention the causes, results and damage potentials of those types of explosions. 20

5. Prepare a flow sheet for the continuous process for the production of diammonium phosphate (DAP). In this process the phosphoric acid and ammonia are mixed and nonhazardous DAP results if the reaction of ammonia is complete. Do the HAZOP study which will identify the hazards and operability problems for the above process. Also suggest the remedial measures for the identified problems. 20

6. Discuss about the typical pipe and valve failures and give also the reasons for their occurence for the following cases
a) Dead end formation at a steam connection
b) Corrosion resulted from collected water
c) Water collected in a dead end. 20

7. Write notes on (any four) 4×5
a) Guide words for HAZOP study
b) Interlock and trip systems for an exothermic reactor
c) Classification of lebel for dangerous goods
d) LD50 and LC50
e) Blast waves
f) Material safety Data Sheet
g) Failure mode for a phase separation vessel.

Bachelor of Engineering In Chemical Engineering Final Examination, 2014 :
4th Year, 1st Semester :
Chemical Project Engineering And Economics :
Time : Three hours
Full Marks : 100
Answer three questions :
all questions do not carry equal marks. :
1. Critically analyse the important factors for the selection of a suitable site for the setting-up of a pulp and paper industry. 15
2. Give an idea of the general considerations in case of selection of a heat exchanger. 15
3. What is a pilot plant ? Why pilot plant studies are conducted ? For what objectives a pilot plant can be used for ? 15

4. Refer to the enclosed PFD to answer the following questions.
a) What is the mass flow rate, temperature and pressure of the feed toluene and hydrogen ? 6
b) How is the liquid level in the toluene storage drum controlled ?
c) How the flow rate of toluene to the feed preheater is controlled ? 2
d) What is the feed inlet and outlet temperature to and from the fired heater ? 2
e) By what name is heat exchanger no. 6 better known ? 1
f) By what name is heat exchanger no. 4 better known ? 1
g) What is the need of heat exchanger no. 5 ? 1
h) The effluent from reactor no.1 enters into the benzene separation column no. 1. Name and label the units which lie in between. 4
i) By what name is pump no. 2 better known ? 1

5. a) State the basic sterilization equation and draw the time temperature profiles for constant degree of sterilization and deactivation of microbes. 6
b) The initial cell count presterilization is 2 x 104 cells / ml and the media volume is 9000 litres. The heating from 100oC to 121oC (the holding temperature) takes 15 min and cooling down to 100oC takes 20 min. Calculate holding time. (Table supplied) 10

6. Glucose was added to a batch culture of micro-organisms and removal was measured over time. With the help of the following data determine the reaction order of the removal process and calculate the value of constant. Establish the reaction rate equations for 0, 1 and 2 orders reaction and then predict the order of reaction by graphical methods (3 different graphs are to be drawn). 16