CHEMICAL ENGINEERIGN – 2005 PAPERT – I, SECTION – B

SECTION –B 

5.       answer any four of the following :

(a)    Explain the concept of cross flow microfiltration along with its advantages over conventional filtration.

(b)   Name various types of heads commonly used in cylindrical vessels. Draw their sketches and list areas of applications.

(c)    Mention stepwise procedure for the design of a torispherical head for a cylindrical vessel.

(d)   What is final value theorem? How is it used to determine response of a system? Explain it with suitable examples.

(e)   Discuss cascade control and its application in process industries

6.       (a) Describe procedure of immersion, precipitation process for the production of membranes.

                           (b) Explain, with the aid of a sketch, the working of an electro dialysis

                           (c) What is pervaporation? Explain it with the help of a neat sketch and also indicate areas of its application.

                           (d) Discuss ion-exchange separation process for the demineralization of water.

7.       An autoclave of 7.9 m³ volume capacity has ellipsoidal heads (major to minor axis ratio = 2:1) at its top and bottom ends.

The autoclave is subjected to a maximum pressure of 8 MN/ m². The allowable stress of the material (carbon steel) is 1040 MN/ m² Weld joint efficiency is 85 %.

Determine optimum dimensions of the autoclave if the following cost rations are applicable:

(a)    The cost of fabricated shell is estimated to vary inversely with D¼ where D is the inside diameter of the autoclave.

(b)    The fabricated cost of top and bottom heads per unit weight is 1.5 times the fabricated coast of shell per unit weight.

A 12 mm place is available in store Check if it can be used for the fabrication of shell of the autoclave. Alternatively, suggest the suitable thickness of plate required for the fabrication of shell of the autoclave.

8.       (a) What are phase margin and gain margin? Discuss their utility in control tunings.

(c)    Discuss procedure for plotting of open loop transfer function by root locus method.

(d)   How do you measure liquid level if the liquid contains suspended solid particles? Suggest measuring instrument along with the principle of working.

(e)   Explain elements of a computer control system.

CHEMISTRY – 2005 PAPER- I, SECTION – A, SECTION – B

                       Time allowed: three Hours    maximum marks: 200

Candidates should attempt question 1 and 5 which are compulsory, and any Three of the following questions selecting at least one question from each section.

SECTION – A

1.       Answer any FOUR of the following:-

(a)    What are the four quantum numbers? Show that these are not same for Cu atom,

(b)   Explain the terms order and molecularity of a reaction by considering the reaction of eater hydrolysis.

(c)    Draw the shapes of s, p, and d orbital’s, show their directional characteristics

(d)   Explain why H₂O exists as solid ice, liquid as well as gas whereas H₂ S exists as gas only.

(e)   What are the crystal types of NaCI and CsCI and explain the difference.

2.       (a) derive an expression for the energy of  particle in a box ( one dimensional only)

                               (b) Draw molecular orbital diagram of CO and its valence bond picture explaining its bond order and back bonding character.

3.       (a) Explain the difference between a conductor, semiconductor and insulator on the basis of band theory. How additions of an impurity affects the behavior of a pure metal/ crystal?

                              (b)  Derive expressions for work done against:

(i)                  Constant external pressure and

(ii)                Isothermal reversible expansion of n ideal gas showing that the work done depends on initial and final states only.

4.       (a) In want respects phase diagram of binary system differs from one component system considering a suitable example?

                             (b) What is electrochemical series? Explain how it helps to determine reducing and oxidizing properties of specie. Calculate e.m.f. of an electrochemical cell

 Mg(s) + Cu ²⁺ (aq)    → Mg² (aq) + Cu(S)

Given that half cell potentials of

Mg² (aq) + 2e → Mg(s) and

Cu² (aq) + 2e   → Cu (s)

Are – 2.360 and 0.337 V respectively.

SECTION – B

5.       Answer any FOUR of the following:

(a)    What is the difference between adsorption and absorption? Explain with a suitable example foe each.

(b)   Explain photosynthesis and show with the help of a suitable experiment that CO₂, H₂O and sunlight are essential.

(c)    Show that ammonia behaves as solvent with suitable examples for neutralization and complex formation reactions.

(d)   In what respect lanthanides are different than actimides especially with regard to their occurrence, and oxidation states?

(e)   Discuss the structure of Ni (CO)₄

6.       (a)  What are the various postulates of crystal field theory? Draw the crystal field splitting of 3d orbitsals in presence of six ligands to form octahedral geometry. Calculate crystal field stabilization energy and magnetic moments for d⁴ and d⁵ configurations in presence of H₂O and CN- as ligands.

                             (b)  Write brief notes on the following with suitable example data: - (i) Chain reactions (ii) Lanthanide contraction.

7.       (a) What are the various types of metal carbonyls? Explain the bonding characteristics of metal carbonyls. Give an example each for mono, di- and tricarbonyls and draw their structures.

                                (b) What do you understand by thermodynamic and kinetic stability of complexes? Explain the terms ‘inert’ and ‘labile’ with a suitable example for each.

8.       (a) explain the following terms briefly with suitable example:-

(i)                  Super acids

(ii)                Metal atom clusters.

                                  (b)   What is first order reaction? Derive an expression for half life of first order reaction. Draw the nature of plot between logs [N₂ O₄] against time in the first order decomposition of N₂O₄.

FORESTRY – 2005 PAPER-II, SECTION –A

         Time allowed: three Hours     Maximum Marks: 200

Candidates should attempt questions 1 and 5 which are compulsory, and any THREE of the following questions selecting at least ONE question from each section.

SECTION –A 

1.       Attempt any four from the following (not more than 150 words each)

(a)    Explain the concept of normal growing stock in clear felling system.

(b)   Describe types of maps prepared for divisional working plans.

(c)    Discuss role of current annual increment (CAI) and mean annual increment. (MAI) in fixation of rotation.

(d)   Write general principles of usufructs sharing under joint forest management.

(e)   Describe different types of mortar and its function in building construction.

2.       (a) How measuring is carried out in chain survey when an obstacle coming in chain line can be chained across but not seen across?

                                (b) What is quarter girth formula? How it is used for calculation of volume of a log?

                                 (c) Discuss electromagnetic spectrum and mention the band with spectral range used in remote sensing.

3.       (a) Describe types of bonds in brick masonary works and explain general rule for good brick bonding.

                                 (b)  Write the concept and principle of Horizontal point sampling.

                                 (C) How annual yield is calculated in a forest managed under uniform system of management?

4.       (a) Describe method of measuring height of a tree situated between top and base of tree.

                                (b)  What do you mean by alpha and beta diversity, and how they are measured?

                                (c) What is Geographic information system (GIS)? Describe role of GIS for natural resources managements.

SECTION – B

5.       attempt any four form the following (not  more than  150 words each ):

(a)    What are ecological pyramids?  Describe any one of them.

(b)   Describe procedure of declaration of reserved forests mentioning important sections of the Indian forest Act, 1927.

(c)    Explain general rules following during felling of trees in a forest.

(d)   Describe the damages caused to the forests by grazing and browsing animals.

(e)   Discuss objectives 

6.       (a) Explain the principles on the basis of which champion and Seth have classified forest types of India.

                               (b) What are gums? List some important gums of India along with the names of source tree.

                               (C) Describe significance of clonal parks in forestry?

7.       (a) Mention the salient features of National Forest Policy 1988 and discuss its superiority over National Forest Policy, 1894.

                                (b)  What is shifting cultivation? How it is practiced in hilly areas?

                                 (c) Discuss role of cost – benefit analysis in forestry sector.

8.       (a) classify medicinal plants on the basis of plant parts used & explain general rules for collection of medicinal plants

                                 (b) Discuss types of preservatives available for preservation of timber.

                                (C) Discuss methodologies of census of wild animals.

ZOOLOGY – 2005, PAPER – II, SECTION – A,SECTION – B

                            Time allowed: three hours     maximum marks: 200

Candidates should attempt questions 1 and 5 which are compulsory, and Any Three of the following questions selecting at least ONE question from each section.

SECTION –A

1.       Distinguish between any four of the following (each answer may be in about 150 words):

(a)    Primary and Secondary iysosome

(b)   Non-overlapping and Overlapping code

(c)    Klinefelter’s and turner’s syndrome

(d)   Allopatric and sympatric speciation

(e)   Genus and species

2.       (a) Describe how the fluid mosaic model of cell membrane is suited to its functions.

3.       Explain the structure and role of plasmids and cosmids in cloning.

4.       Write notes on the following:

(a)    Methods of speciation

(b)   Reasons for discontinuous distribution of animals

(c)    Binomial nomenclature

(d)   Five-kingdom system of classification of whittaker

SECTION – B

5.       Distinguish between any four of the following (each answer may be in about 150 words):

(a)    Lipids and Fatty acids

(b)   Impulse conduction within a Nerve and Between Nerves

(c)    Neoteny and Neoplasia

(d)   Induction and Invagination

(e)   Role of hormones in pregnancy and Parturition

6.       Describe the structure of the different types of RNA. Add a note on their functions.

7.       Describe two different examples for two different mechanisms of actions of hormones.

8.       Write notes on the following:

(a)    In vitro fertilization

(b)   Role of cytoplasm in development

(c)    Role of ecdysone and juvenile hormone in insect metamorphosis

(d)   Influence of yolk on cleavage patterns

ZOOLOGY – 2005, PAPER – I, SECTION – A,SECTION – B

Time Allowed: Three hours    maximum marks: 200

Candidates should attempt questions 1 and 5 which are compulsory, and Any Three of the following questions selecting at least ONE question from each section.

SECTION – A

1.       Write briefly on any Four of the following in not more than 150 words each:

(a)    Radiate and its position in animal kingdom

(b)   Compare the heart of frog with that of bird

(c)    Formation of coral reefs

(d)   Thyroid and its hormone

(e)   Nematocysts – structure & mechanism of action

2.       (a) Discuss the general characteristics of Peripatus and comment on its affinities.

(b) Describe the salient features of phylum Mollusca and classify the same up to classes citing distinguishing characters and examples.

3.       (a) Give an account of the larval forms of Echinodermata and add a note on their significance.

(b)   Describe the general features and life history of Fasciola and add a note on its relation to man.

4.       Give an illustrative account of the organs, mechanism and physiology of respiration in fishes.

SECTION –B

5.       Write notes on any FOUR of the following in not more than 150 words each:-

(a)    Biological rhythms

(b)   Role of pheromones in alarm spreading

(c)    Cholera- its vector, pathogens and prevention

(d)   Chi square test

(e)   Integrated pest management.

6.       Describe the detail the ecological succession and add a note on its significance.

7.       (a)  What is polymorphism? Explain this phenomenon with reference to termites and honey Bess. Add a note on its significance.

                                       (b)  Explain how Silk is cultured in India and add a note on its economic importance.

8.       (a)  Give an account of the principle and working of the transmission election microscopy.

(b)  Citing suitable examples explain how the measures of central tendency and applied in biostatistics.

BOTANY – 2005, PAPER- II, SECTION A,SECTION – B

                          Time allowed: Three Hours    maximum marks: 200

Candidates should attempt questions 1 and 5 which are compulsory, and any THREE of the following questions selecting at least ONE question from each section.

SECTION A

1.       Write short notes on any four of the following in about 150 words each:

(a)    Nucleosome

(b)   Male sterility

(c)    Chi-square test

(d)   Trisomics

(e)   One-gene, one- enzyme concept

2.       (a) Explain the various methods of transfer of genes.

(b)  What is recombinant DNA technology? How is it employed in genetic engineering?

3.       (a)  With suitable classical experiments on sex-linked inheritance, prove that genes are carried on the chromosomes.

(b) How is sex determined in plants?

4.       (a) Explain the regulatory mechanism of gene action in microbes.

(b) What is genetic code? Explain the echanism of genetic code in the transfer of information from DNA to amino acids.

SECTION – B

5.       Write short notes on any four of the following in about 150 words each:

(a)    CAM pathway

(b)   Phytochrome

(c)    Gibberellins

(d)   Bioindicators

(e)   Red Data Books

6.       (a) Describe the morphological and biochemical changes accompanying seed germination.

(b)  Explain the molecular basis of fruit ripening and show how fruit ripening is manipulated.

7.       (a) Explain the physiology of nitrogen metabolism.

(b) Explain the mechanism of photorespiration in plants.

8.       (a) Explain the characteristics of various forest types of India.

(b) Explain forests as renewable resources.