B.Tech2193R07

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Code No: X0122��

II B.Tech I Semester (R07) Regular Examinations, Nov- 2010

ELECTRICAL AND ELECTRONICS ENGINEERING

(Com. to CE, ME, AME)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

1. a) What are the two types of elements, explain them briefly.

b) State and explain Kirchhoff’s laws.

2. a) Briefly explain the principle and operation of dc generator

b) With a neat sketch explain the operation of three point starter. Also mention the applications

of it.

3. a) Derive the EMF equation of a transformer.

b) Describe briefly the various losses in a transformer and explain how each loss varies with

the current?

4. Define the synchronous reactance and synchronous impedance. And explain the determination

of voltage regulation by synchronous impendence method?

5. a) What do you mean by static characteristics of instruments?

b) Define principle of operation of analog instruments.

6. Explain about Full Wave Bridge Rectifier with a neat sketch and also give the formulas for

average and r.m.s voltage and currents.

7. a) How the transistor work as an Amplifier.

b) Explain SCR Characteristics.

8. a) Compare electrostatic and electromagnetic deflection systems.

b) Define and explain briefly about

(i) Deflection

(ii) Sensitivity.

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1. a) Explain briefly about the basic circuit components with their symbols.

b) Give the difference between series circuit and parallel circuit.

2. a) Derive the emf equation of a d.c generator

b) Explain the principle of operation of d.c motor?

3. a) What is a transformer? Explain working of a transformer with a neat sketch.

b) Define efficiency and derive the condition for maximum efficiency.

4. a) What is an alternator and explain the principle of operation of an alternator?

b) Compare salient pole and non-salient pole alternator?

5. Explain with neat diagram, the construction features of PMMC instruments.

6. a) Explain V-I Characteristics of Diode.

b) What are the advantages of Bridge rectifier over full wave rectifier?

7. a) Explain p-n-p Junction Transistor.

b) Explain why the collector region occupies more area when compared to base and emitter.

8. a).Draw the block diagram of CRO and explain the function of each block.

b) Mention the applications of CRO.

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1. a) Write down the expression for division of voltage in series circuit.

b) States ohms law. Explain it briefly.

2. a) List out the main parts of d.c generator? Write details about the construction and function of

each part.

b) What is the relationship between torque, flux and armature current in dc motor?

3. a) Define step-up and step-down transformer?

b) What are the various losses in the Transformer?

4. Explain the constructional features of squirrel cage rotor and slip ring rotor with a neat sketch.

5. Sketch and determine the construction of a moving coil ammeter and give the principle of

operation?

6. Explain Half Wave Rectifier with a neat sketch and also give the formulas for average, r.m.s

voltage and currents.

7. a) Explain the operation of N-P-N Transistor with a block diagram.

b) Explain the applications of SCR.

8. a) Explain the principle of operation of CRO with a neat sketch.

b) Derive the equation of magnetic deflection of CRO.

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1. a) State Faradays law of electromagnetic induction.

b) If ‘n’ number of resistors having resistances of R1,R2,…..,Rn are connected in series, then

find the total resistance.

c) Derive the star-delta transformation for a resistive network.

2. What are the kinds of self excited dc generators explain them briefly, and also write the

relationships among currents and voltages.

3. a) What is the basic principle of a transformer? Also explain why is transformer rating in kVA?

b) Derive the condition for regulation at which maximum regulation occurs?

4. a) What are the two types of rotors employed in a three phase induction motors.

b) What is meant by slip speed and slip in an induction motor?

5. State two types of moving iron instruments, and explain them with diagrams.

6. With the help of a neat sketch explain the V-I characteristics of a P-N junction diode under

forward and reverse biased conditions.

7. a).Draw transistor equivalent model of SCR and explain it briefly?

b) Mention the applications of transistor?

8. a) Explain the principle of operation of CRT with a neat sketch.

b) Derive the Electro Static deflection of CRO.

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Code No: X0223/ R07

II B.Tech I Semester (R07) Regular Examinations, No

PULSE AND DIGITAL CIRCUITS

Time: 3 hours


1. a) Discuss the response of High pass RC circuit wit

i) Step Input

ii) Ramp input

b) Explain how Low pass RC circuit will act as Inte

2. a) Draw the circuit of transistor clipper and explain its operation with the

waveforms.

b) List out applications of voltage comparators.

3. An input pulse is applied to the transistor switch

minimum input voltage required to make t

input voltage required to put the transistor in sat

required by the LED to glow is 10mA,

voltage of the transistor is 0.7V, collector

0.5V.



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a) Discuss the response of High pass RC circuit with the help of waveforms

b) Explain how Low pass RC circuit will act as Integrator.

ansistor clipper and explain its operation with the

b) List out applications of voltage comparators.

An input pulse is applied to the transistor switch shown in figure below. What

minimum input voltage required to make the LED to glow? Also find out the minimum

input voltage required to put the transistor in saturation. It is given that the minimum current

required by the LED to glow is 10mA, voltage drop across the LED is 1.5V, base

0.7V, collector – emitter voltage of the transistor in saturation is

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Max Marks: 80

ansistor clipper and explain its operation with the help of

in figure below. What is the

glow? Also find out the minimum

It is given that the minimum current

oltage drop across the LED is 1.5V, base – emitter

emitter voltage of the transistor in saturation is

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Code No: X0223/ R07

4. Compute the voltage levels of collector coupled mon

collectors for the circuit shown below.

5. Draw and explain the operation of sweep circuit usi

Explain limitations of the circuit.

6. Discuss the concept of pulse synchronization of rel

7. a) Distinguish between sampling gates and logic gat

b) Explain the working principle unidirectional dio

voltage on gate output.

8. Explain the operation of 3- input NAND gate using RTL negative logic.

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Compute the voltage levels of collector coupled monostable multivibrator at bases and

collectors for the circuit shown below.

Draw and explain the operation of sweep circuit using UJT with necessary waveforms.

of the circuit.

Discuss the concept of pulse synchronization of relaxation devices.

a) Distinguish between sampling gates and logic gates.

b) Explain the working principle unidirectional diode gate also illustrate the

input NAND gate using RTL negative logic.

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at bases and

ng UJT with necessary waveforms.

illustrate the effect of control

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Code No: X0223/ R07



Time: 3 hours


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1. a) Discuss the response of Low pass RC circuit with

i) Step Input

ii) Ramp input

b) Explain how high pass RC circuit will act as Differentiator.

2. a) Draw the circuit of two diode clipper and explai

waveforms.

b) Explain the effect of diode characteristics on c

3. A simple switching circuit is shown figure below. T

also shown below. Draw the output waveform across



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a) Discuss the response of Low pass RC circuit with the help of waveforms

pass RC circuit will act as Differentiator.

a) Draw the circuit of two diode clipper and explain its operation with the help of

b) Explain the effect of diode characteristics on clamping voltage.

A simple switching circuit is shown figure below. The input voltages V3 and V

also shown below. Draw the output waveform across resistor R5. Assume V

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Max Marks: 80

operation with the help of

and V4 applied are

. Assume VCE(Sat) is zero.

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Code No: X0223/ R07

4. Calculate the stable state currents and voltages fo

below. Assume that the transistors have a minimum h

5. Design a UJT sweep generator with the sweep amplitu

the waveform is expected to be 3ms with negligible

0.75. Determine the values of R

6. Discuss the concept of frequency division in the sweep circu

7. Discuss the bidirectional sampling gate using singl

8. Explain the operation of 3 input NOR gate using RTL

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Calculate the stable state currents and voltages for the bi-stable multi vibrator

. Assume that the transistors have a minimum hFE value of 20.

Design a UJT sweep generator with the sweep amplitude of 6 volts. The sweep interval of

the waveform is expected to be 3ms with negligible retrace interval. The slope error

0.75. Determine the values of Rb1, Rb2,VBB, V, R and C

he concept of frequency division in the sweep circuits.

Discuss the bidirectional sampling gate using single transistor and two transistors.

Explain the operation of 3 input NOR gate using RTL positive logic.

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vibrator circuit shown

de of 6 volts. The sweep interval of

retrace interval. The slope error, es =

e transistor and two transistors.

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Code No: X0223/ R07



Time: 3 hours

All Questions carry

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1. a) Discuss the response of High pass RC circuit for sq

necessary wave forms.

b) Explain the concept of attenuators.

2. a) State and prove clamping circuit theorem.

b) Draw an ideal clamping circuit

i) Positive peaks to be at zero level

ii) Negative peaks to be at zero level

Assume sinusoidal input and

3. Explain in detail about transistor

4. Calculate the lower and upper triggering voltages f

below.

5. Explain the Millar sweep circuit



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Discuss the response of High pass RC circuit for square wave input. Also sketch

Explain the concept of attenuators.

a) State and prove clamping circuit theorem.

circuit for which output to satisfy following conditions

Positive peaks to be at zero level

ii) Negative peaks to be at zero level

Assume sinusoidal input and justify your answer.

Explain in detail about transistor switching times.

Calculate the lower and upper triggering voltages for the Schmitt trigger circuit shown

Explain the Millar sweep circuit. Also derive an expression for slope error and sweep speed.

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Max Marks: 80

uare wave input. Also sketch the

for which output to satisfy following conditions

or the Schmitt trigger circuit shown

for slope error and sweep speed.

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Code No: X0223/ R07

6. With the help of circuit and necessary waveforms explain the concept of synchronization in

astable multivibrator.

7. Explain the bidirectional sampling gate using diodes. Also derive the expression for gain.

8. Draw the circuits for OR gate using diodes for negative logic and positive logic and explain

the operation.

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Code No: X0223/ R07



Time: 3 hours


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1. a) Discuss the response of Low pass RC circuit for

necessary wave forms.

b) Explain the concept of ringing circuit.

2. For the clamping circuit shown below, a symmetrical

amplitude ranging from 0 to 10 Volts and frequency of 5 kHz. Compute and ske

output waveform for first several cyc

3. a) Explain piecewise linear characteristics of dio

b) With the circuit explain how transistor works as

4. With the help of circuit and waveforms explain the

multivibrator. Also derive an

5. Explain the Millar sweep circuit. Also derive

6. With the help of block diagram and necessary wavefo

relaxation dividers.

7. Explain the working principle four diode sampling gate

8. Draw the circuits for AND gate using diodes for neg

explain the operation.



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a) Discuss the response of Low pass RC circuit for square wave input. Also sketch the

b) Explain the concept of ringing circuit.

For the clamping circuit shown below, a symmetrical square wave is applied at t=0 with

to 10 Volts and frequency of 5 kHz. Compute and ske

output waveform for first several cycles.

a) Explain piecewise linear characteristics of diode.

b) With the circuit explain how transistor works as switch.

With the help of circuit and waveforms explain the operation of collector coupled

multivibrator. Also derive an expression for pulse width.

Explain the Millar sweep circuit. Also derive expressions for slope error and sweep speed.

With the help of block diagram and necessary waveforms explain about stability of

ng principle four diode sampling gate and derive expression for gain.

Draw the circuits for AND gate using diodes for negative logic and positive logic and

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Max Marks: 80

square wave input. Also sketch the

square wave is applied at t=0 with

to 10 Volts and frequency of 5 kHz. Compute and sketch the

operation of collector coupled astable

for slope error and sweep speed.

rms explain about stability of

and derive expression for gain.

ative logic and positive logic and

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ENVIRONMENTAL STUDIES

(Com. to ECE, AE, CHEM, ECC)




1. a) Explain need for students from all courses to be aware of environmental issues. (6M)

b) Write briefly about the scope of Environmental issues. (10M)

2. Discuss in detail about forest use and over exploitation and deforestation and write any case

study (16M)

3. a) Discuss about food chains, food webs and ecological pyramids with examples (10M)

b) Write short note on ecosystem (6M)

4. Discuss about (4×4= 16M)

a) Hot spots

b) Endangered species

c) Endemic species

d) Consumptive use value

5. Discuss about Definition, Cause, effects and control measures of Air pollution (16M)

6. a) Discuss about problems and concerns of resettlement and rehabilitation of people (8M)

b) Discuss about water shed management (8M)

7. Discuss about value education and Environmental values of humans (16M)

8. Discuss the air polluted site in your field work (16M)

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1. Explain briefly contribution made by the following (4×4= 16M)

i) BNSH

ii) Indira Gandhi

iii) Botanical survey of India:

iv) Madhav gadgial

2. a) Discuss the environmental effects of extracting and using mineral resources (8M)

b) Discuss about timber extraction ,dams and other effects on forest and tribal people (8M)

3. Discuss about grassland ecosystem and explain with proper examples (16M)

4. a) Discuss about Biodiversity at global, national and local levels (8M)

b) Justify India as a mega diversity nation (8M)

5. a) Discuss about Definition, Cause, effects and control measures of nuclear hazards pollution

(8M)

b) Discuss about air pollution (8M)

6. Discuss about different methods for water conservation (16M)

7. Write short note on (4×4= 16M)

a) Valuing culture

b) Human heritage

c) valuing nature

d) Ecological degradation

8. Discuss the water polluted site in your field work (16M)

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1. a) Write importance of education on environmental issues (8M)

b) Describe the multi disciplinary nature of environmental studies. (8M)

2. a) Discuss the environmental effects of extracting and using mineral resources (8M)

b) Discuss about timber extraction, dams and other effects on forest and tribal people (8M)

3. Discuss about desert and aquatic ecosystem (16M)

4. a) Write a note on Biodiversity and its uses (8M)

b) Discuss about genetic diversity with examples (8M)

5. a) Discuss about Definition, Cause, effects and control measures of thermal pollution (8M)

b) Discuss about water pollution (8M)

6. Write note on the following (4×4= 16M)

a) Climate changes

b) Global Warming

c) Acid rains

d) Ozone layer depletion

7. Discuss the following

a) HIV/AIDS (8M)

b) Women and child welfare (8M)

8. Write the report of your field work on Ecosystem of your choice (16M)

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1. What are the different activities that can be taken up to increase public awareness of

environmental issues? Explain how they help in better environmental management. (16M)

2. a) Discuss about water resources, use and over utilization of surface and ground water (8M)

b) Discuss in detail about benefits and problem in construction of dams (8M)

3. Discuss about (4×4= 16M)

a) Water cycle

b) Carbon cycle

c) Oxygen cycle

d) Nitrogen cycle

4. Discuss about social values, ethical and moral values, aesthetic value and option value (16M)�

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5. Discuss about Definition, Cause, effects and control measures of noise pollution (16M)

6. a) Discuss about urban problems related to energy (8M)

b) What do you mean by sustainable development (8M)

7. Write detailed discussion on Human rights (16M)

8. Write a detailed explanation about local polluted site of your choice (16M)

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MANAGERIAL ECONOMICS AND FINANCIAL ANALYSIS (Com. to CSE, IT, MM, CSS)




Note: Present Value Tables are permitted for the Q.No:7

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1. a) What is Managerial Economics?

b) Explain the importance of Managerial Economics in decision making.

2. a) What is price elasticity of demand?

b) Explain different types of price elasticity of demand.

3. a) Define Monopoly?

b) How are price and output determined under monopoly?

3. a) Distinguish between fixed and variable costs.

b) What is the importance of this distinction in the theory of value?

5. a) Define sole trader.

b) What are its features, advantages and disadvantages?

6. a) Define BEP. How do you determine it?

b) Show the graphical presentation of Break Even Point.

7. ABC Co. Ltd. is proposing to mechanize their operations. Two proposals A and B in the

form of quotations have been received from two different vendors. The Proposal in each

case costs Rs. 5, 00,000/-. A discount factor of 12% is used to compare the proposals. Cash

flows after taxes (CFAT) are likely to be as under.

Cash flows after taxes (CFAT)

Year Proposal ‘A’

(in Rs.)

Proposal ’B’

(in Rs.)

1 1,50,000 50,000

2 2,00,000 1,50,000

3 2,50,000 2,00,000

4 1,50,000 3,00,000

5 1,00,000 2,00,000

Which one do you recommend under Net Present Value Index method?

8. a)What are the important ratios?

b) Explain any four of them with examples to understand the financial statements?

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1. a) What is managerial Economics?

b) Explain the basic tools in managerial economics applicable to other subjects.

2. a) What do you mean by demand forecasting?

b) Discuss briefly the various methods demand forecasting and point out their limitations.

3. What are the features of a monopoly and a competitive market coexisting in monopolistic

competition?

4. a) Discuss the Break-even point.

b) Explain its assumptions and limitations.

5. a) Define Joint Stock Company.

b) What are its features and various forms?

6. Rank the following investment proposals in order of their profitability according to Pay-

Back Period and Discounted Cash flow methods assuming the cost of capital to be 12%.

Project Initial Outlay

Rs.

Annual Cash Flow

Rs.

Life in years

A 25,000 3,000 10

B 3,000 1,000 5

C 12,000 2,000 8

D 20,000 4,000 10

E 40,000 8,000 12

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7. Journalize the following transactions? Prepare journal entries and ledger accounts

(Cash A/c, purchase A/c, Sales A/c and Bank A/c).

December, 1st

2009

Ajit started business with cash Rs. 40000

3rd

He paid in to the bank Rs. 2000

5th

He purchased goods for cash Rs. 15000

8th

He sold goods for cash Rs. 10000

10th

He purchased furniture and paid by cheque Rs. 6000

12th

He sold goods to Arvind Rs. 4000

14th

Purchased goods from Arun Rs. 10000

16th

Paid salaries Rs. 1500

17th

Paid depreciation Rs. 500

20th

Commission received Rs. 800

22nd

Amount deposited in to the bank Rs. 4000

25th

withdrew cash from bank Rs. 3000

28th

cash paid to Raju in full settlement Rs. 4950

31st Paid expenses Rs.. 700

8. The following is the balance sheet of ABC Company as on 31st March 2010.

Liabilities Amount

(in Rs.)

Assets Amount

(in Rs.)

Share capital 2,00,000 Land & Buildings 1,40,000

Profit & Loss account 30,000 Plant & Machinery 3,50,000

General Reserve 40,000 Stock 2,00,000

12% Debentures 4,20,000 Sundry Debtors 1,00,000

Sundry creditors 1,00,000 Bills Receivable 10,000

Bills Payable 50,000 Cash at Bank 40,000

Total

8,40,000

Total

8,40,000

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Calculate: i). Current Ratio.

ii). Quick Ratio

iii). Inventory to working capital

iv). Debt equity ratio

v). Current assets to fixed assets Ratio

vi). Proprietary Ratio�

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1. What are the functions, duties and responsibilities of a manager involved in the

decision making process?

2. a) What is Law of demand?

b) Explain its limitations and why the demand curve is slopping downwards?

3. a) Define Monopolistic competition.

b) How are the price and output determined under Monopolistic competition?

4. a) What is break-even point? Explain it through the break-even chart.

b) From the following data calculate the break-even point:

Fixed cost ----- Rs. 9,000

Selling price ----Rs. 5 per unit

Variable cost ---Rs. 3 per unit

Suppose the price reduces to Rs. 2 per unit, what would you say about the break-even

position?

5. a) Define public enterprises.

b) What are the features and advantages of public enterprises?

6. ABC company is considering the purchase of a machine from the following:

Machine-I Machine-II

Life 3 years 3 years

Initial Investment Rs. 10,000 Rs. 10,000

Net Earnings after tax Rs. Rs.

1st Year 8,000 2,000

2nd

Year 6,000 7,000

3rd

Year 4,000 10,000

You are required to suggest which machine should be preferred by using the following

methods. The cost of capital is 10 per cent.

i) Payback period method and

ii) Discounted cash flow method

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7. Prepare the trading, profit & Loss account and Balance Sheet for the following as

on 31 March’ 2010.

Particulars Debit

Rs.

Credit

Rs. Capital - 25,000

Loans - 5,000

Sales - 35,000

Bills Payable - 5,000

Accounts Payable - 4,000

Purchase Returns - 2,000

Dividend Received - 3,000

Plant and Machinery 13,000 -

Buildings 17,000 -

Receivables 9,650 -

Purchases 18,000 -

Discount allowed 1,200 -

Wages 7,000 -

Salaries 3,000 -

Travelling Expenses 750 -

Freight charges 200 -

Insurance 300 -

Commission paid 100 -

Bank 1,600 -

Repairs 500 -

Investment on loans 600 -

Opening stock 6,000 -

Total 79,000 79,000

Adjustments: 1. Closing stock Rs. 8,000

2. Depreciation on plant and machinery at 15% and 10% on buildings.

3. Provision for doubtful receivables Rs. 500

4. Prepaid Insurance Rs. 50

5. Outstanding Rent Rs. 100

8. from the following Information, Calculate:

i) . Gross Profit Ratio

ii). Net Profit Ratio

iii). Inventory Turnover Ratio

iv). Working capital turnover Ratio

v). Net worth to debt ratio

vi). Return on total assets Ratio

Particulars Amount (in Rs.)

Sales 25,20,000

Cost of Sales 19,20,000

Net Profit 3,60,000

Inventory 8,00,000

Other Current Assets 7,60,000

Fixed Assets 14,40,000

Net worth 15,00,000

Debt 19,00,000

Current Liabilities 6,00,000

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1. Explain the following methods of forecasting demand.

a) Barometric method

b) Judge mental Approach

c) Economic indicators

d)Time series analysis

2. Discuss briefly the relationship among total product, average product and marginal product.

With the help of assumed data represent graphically.

3. Consider the case of the company with the following two investment alternatives each

costing Rs. 9, 00,000/-. The details of the cash flows are as follows.

Year Cash flows (in Rs.)

Project-I Project-II

1 3,00,000 6,00,000

2 5,00,000 4,00,000

3 6,00,000 3,00,000

The cost of capital is 10 per cent per year. Which one will you choose?

a) Under NPV method.

b) Under IRR method.

4. Define markets. Elaborate how differently are markets classified?

5. If sales are 10,000 units and selling price is Rs. 20 per unit, variable cost Rs. 10 per unit and

fixed cost is Rs. 80,000. Find out BEP in units and sales revenue. What is profit earned?

What should be the sales for earning a profit of Rs. 60,000/-.

6. What do mean by partnership? Explain its features, advantages and disadvantages.

7. What are the accounting principles? Explain the accounting concepts.

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8. From the following Balances as on the date March 31st 2010

Liabilities Amount

(in Rs.)

Assets Amount

(in Rs.) 12% debentures 2,00,000 Bank at Cash 10,000

8% Long term loan 1,50,000 Cash in hand 20,000

Preference share capital 2,50,000 Debtors 10,000

Bank overdraft 50,000 Opening stock 50,000

Creditors 1,00,000 Closing stock 40,000

Bills payable 50,000 Gross profit 20,000

Sales 95,000 Buildings 5,00,000

Land & Machinery 2,05,000

Total 8,45,000 8,45,000

Calculate the Ratios:

i) Current Ratio

ii)Debt-entry Ratio

iii) Inventory turnover Ratio

iv)Quick Ratio

v) Debtors turnover Ratio

vi)Liquidity Ratio

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Code No: W1121/ R07


APPLIED CHEMISTRY AND BIOCHEMISTRY

(Bio-Medical Engineering)




1. a) Define the following terms and write their units (4x2=8M)

i) Specific conductance, ii) equivalent conductance

b) Explain the measurement of equivalent conductance with neat diagram (8M)

2. a) Explain briefly the vulcanization of rubber (8M)

b) Write the preparation, properties and uses of Teflon and Bakelite (8M)

3. Write short note on the following (8x2=16M)

a) Zeolite process b) Ion exchange process

4. What is redox potential and explain oxidative phosphorylation in living cell (16M)

5. a) Explain specificity of enzymes with suitable examples (8M)

b) Write a note on diagnostic and therapeutic uses of enzymes (8M)

6. Explain the metabolic activity of carbohydrate, Protein and lipids (16M)

7. Explain the following separation procedures of proteins and lipoproteins (8x2=16M)

a) Electrophoresis b) Ultra centrifugation

8. a) Write principle of Flame photometry and how it is useful in the biochemical analysis of

blood (10M)

b) Applications of isotopes in biochemistry (6M)

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Code No: W1121/ R07







1. a) Define the following terms and write their units (4x2=8M)

i) Cell constant ii) equivalent conductance

b) Explain the measurement of equivalent conductance with neat diagram (8M)

2. a) write a note on natural rubber (6M)

b) Write the preparation, properties and uses of (5x2=10M)

i) Poly ethelene ii) Bakelite

3. a) explain analysis of hard water by ion exchange process (8M)

b) Define hardness of water and explain various types of hardness (8M)

4. a) Discuss the functions of each organelle (8M)

b) Write a note on oxidative phosphorylation (8M)

5. a) Explain constitution and chemical nature of enzymes (8M)


6. Write protein synthesis and explain briefly transcription and replication (16M)

7. a) Write the separation technique of serum protein by using electrophoresis (8M)

b) Write a note on urine analysis (8M)

8. a) Explain principle involved in fluorometry (8M)

b) Write the applications of isotopes in biochemistry (8M)

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Code No: W1121/ R07







1. a) Write a note on galvanic cell. (6M)

b) Explain why specific conductance decreases with dilution and equivalent

conductance increases with dilution (6M)

c) What is molar conductance and write its units (4M)

2. Define Polymer and write the preparation, properties (8x2=16M)

and applications of the following

a) PVC and b) Bakelite

3. a) What is lubricant and explain the classification of lubricants (8M)

b) Explain the lime soda process for the purification of hard water (8M)

4. a) Discuss fractionation using differential centrifugation method (8M)

b) Write a note on oxidative phosphorylation (8M)

5. a) Define enzyme and write a note on kinetic properties of enzymes (8M)


6. a) Explain chemiluminiscence with example (8M)

b) Write a note on ELISA test (8M)

7. Write a note on the following (8x2=16M)

a) Ultra centrifugation

b) Acid –Base and Electrolyte status of patients

8. a) Write the applications of Isotopes in biochemistry (8M)

b) Write a note on fluorometry and flame photometry (8M)

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Code No: W1121/ R07







1. a) Define the term conductance and explain the method of determination of equivalent

conductance by schematic diagram (12M)

b) Explain the significance of Cell constant (4M)

2. Write the preparation, properties and uses of the following (8x2=16M)

a) Poly ethelene b) TEFLON

3. Explain the following (8x2=16M)

a) Extreme pressure lubrication

b) Boundary film lubrication

4. a) Write the functions of each organelle in living cell (8M)

b) Explain the transport of substances across biological membrane function (8M)

5. Explain the kinetic properties of enzymes by spectrophotometric techniques (16M)

6. a) Write a note on polymerase chain reaction of proteins (8M)

b) Explain radio immuno assay of proteins (8M)

7. Write a note on the following (8x2=16M)

a) Urine analysis b) chemical composition of blood

8. a) How do you estimate the blood constituent in glucose (8M)

b) Write the principle involved in chromatography (8M)

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Code No: W2321��


BIOCHEMISTRY

(Bio-Technology)




1. a) Explain about structure and properties of Monosaccharide’s.

b) Briefly discuss about glycoside Bond.

2. a) Write about the functions of Enzymes.

b) Explain about Allosteric Enzymes.

3. a) Discuss about Aerobic Respiration.

b) Explain about Anaerobic Respiration.

4. a) Give a detailed account on urea cycle.

b) Explain the physical and chemical properties of Amino acids.

5. a) Explain in detail about “ Glutamate pathway ” of Amino acids synthesis.

b) Explain about “Serine pathway”

6. a) Write about classification and role of Fatty acids.

b) Explain in detail about the classification and role of Fatty acids

7. Give a detailed account on interconnection of pathways and metabolic regulation.

8. a) Write about the structure and properties of Purines and Pyrimidines.

b) Discuss the differences between Nucleosides and Nucleotides.

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II B.Tech I Semester (R07) Regular/Supply Examinations, Nov- 2010

BIOCHEMISTRY

(Bio-Technology)




1. a) Explain about structure and properties of Disaccharides and Polysaccharides

b) Discuss the structure and function of Lectins and Glycasoamino Glycans.

2. a) Define Enzymes and Write about Nomenclature of Enzymes.

b) Derive the expression for Michaelis- Menton equation.

3. a) Explain in detail about “ EMP Pathway ” or glycolysis.

b) Explain in detail about “ED Pathway”

4. a) Write about classification and of Amino acids.

b) Explain about reductive amination.

5. a) Explain in detail about “ Serine pathway ” .

b) Write about “Shikimate pathway” for the production of aromatic Amino acids.

6. a) Explain about the synthesis and metabolism of Triglycerols.

b) Discuss the structure and functions of Cholesterol.

7. Briefly discuss about the Interconnection of pathways and metabolic regulation.

8. a) Explain about the biosynthesis and degradation of Nucleic acids.

b) Explain in detail about Nucleotides.

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BIOCHEMISTRY

(Bio-Technology)




1. a) Write about the confirmation of Pyranose and Furanose ring.

b) Briefly discuss about complex Carbohydrates.

2. a) Write about mechanism of action and control of Enzymes.

b) Discuss about functions of Enzymes.

3. a) Explain in detail about “ TCA cycle ” .

b) Give a detail account on “Glucogenesis”.

4. a) Explain about transamination.

b) Discuss about the protein structure.

5. a) Write about “Glutamate pathway” of Amino acid synthesis.

b) Explain in about “Serine pathway”.

6. a) Write about Fatty acid synthesis.

b) Discuss the structure and functions of lipoproteins.


8. a) Explain about the structure of DNA.

b) Write about the structure of Purines and Pyrimidines.

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BIOCHEMISTRY

(Bio-Technology)




1. a) Discuss the structure and properties of Monosaccharide’s.

b) Briefly discuss about structure and functions of Cellulose.

2. a) Write about mechanism of action and control of Enzymes.

b) Define Enzyme and Discuss about functions of Enzymes.

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3. a) Give a detail about “ Pentose Phosphate Shunt Pathway ” .

b) Give a detail account on “Glucogenesis”.

4. a) Write about protein folding and functions.

b) Discuss physico chemical properties of Amino acids.

5. a) Briefly discuss about any one pathway which involves the synthesis of Amino acid .

b) Explain “Shikimate pathway” for the production of aromatic Amino acids.

6. a) Explain the classification Fatty acids.

b) Discuss the structure and functions of Cholesterol


8. a) Write about structure of Purines and Pyrimidines .

b) Give a detail account on Nucleosides and Nucleotides.

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