Page 1 of 2 Code No: R15A0013 MALLA REDDY COLLEGE OF ENGINEERING & TECHNOLOGY (Autonomous Institution – UGC, Govt. of India) I B.Tech II Semester Advance Supplementary Examinations, June 2019

Engineering Chemistry (ME & AE) Roll No Time: 3 hours Max. Marks: 75 Note: This question paper contains two parts A and B

Part A is compulsory which carriers 25 marks and Answer all questions.

Part B Consists of 5 SECTIONS (One SECTION for each UNIT). Answer FIVE Questions, Choosing ONE Question from each SECTION and each Question carries 10 marks.

*** PART -A (25 Marks) 1). a What is concentration cell? [2M] b Define the conductance, equivalent, molar conductance and their unit? [3M] c What is electrochemical series oxidation corrosi on? [2M]

d What is galvanic and tinning? [3M] e Write notes about the viscosity, cloud point and pour point? [2M] f What are biodegrad able polymers? Give examples. [3M] g Define scales and sludges. [2M] h Differe ntiate between primary and secondary batteries [3M]

i Write a short note about the coal analysis and significance . [2M] j Define the knocking, octane and cetane rating . [3M] PART -B (50 MARKS) SECTION -I 2 a) Explain construction and working Galvanic cell with neat diagram. .

b) Explain the construction and functioning of Calomel electrode [5M] [5M] OR 3 Write a short note on the emf of electrode and electrode potentials in the cell reaction. Briefly explain the Nernst equation and its applications . [10M]

SECTION -II 4 Explain cathodic protection by sacrificial anoidic and impressed current cathodic method. [10M] OR 5 (a) Explain Chemical corrosion.

(b) Give a brief note on galvanic corrosion. [5M] [5M] SECTION -III 6 Give the briefly introduction of thermoplastic and t hermosetting resins ? Explain with examples. [10M]

OR 7 Write a briefy note on the fiber reinforced plastics (FRP) and its applications. [10M] SECTION -IV 8 Explain the following methods: i) Phosphat e conditioning ii) Zeolite process . [10M] R15 Page 2 of 2

OR 9 a) What is the reason for hardness of water? Explain the types of hardness of water with units and determination of hardness of water by EDTA method .

b) What is the potable water and its specifications ? [7M] [3M] SECTION -V 10 a) Discuss the synthetic petrol process by Fischer -Tropsch‘s process ?

b) Define cracking. Explain fixed bed catalytic cracking. [5M] [5M] OR 11 Explain the analysis of coal by proximate analysis. Give its importance. [10M] ******

Page 1 of 3 Code No: R15A0 201 MALLA REDDY COLLEGE OF ENGINEERING & TECHNOLOGY (Autonomous Institution – UGC, Govt. of India) I B.Tech II Semester Advance Supplementary Examinations, June 2019

Electrical Circuits (ECE, CSE & IT) Roll No Time: 3 hours Max. Marks: 75 Note: This question paper contains two parts A and B

Part A is compulsory which carriers 25 marks and Answer all questions.

Part B Consists of 5 SECTIONS (One SECTION for each UNIT). Answer FIVE Questions, Choosing ONE Question from e ach SECTION and each Question carries 10 marks.

*** PART -A (25 Marks) 1). a State the principle of source transformation . [2M] b Draw the v -i characteristics of ideal and practical voltage and current sources. [3M] c A network has 10 n odes and 17 branches in all. What is the number of twigs and

links? [2M] d Illustrate delta to star conversion . [3M] e What is the mean value of a sinusoidal alternating e.m.f. which has a maximum value of 100V? [2M] f Define (i) Av erage value (ii) R.M.S. value and (iii) form factor [3M]

g State Thevenin’s theorem. [2M] h Find the Norton resistance, that is RN, for the circuit given below.

[3M] i Draw the equivalent circuit of transformer under load [2M] j Derive the emf equation of a Transformer [3M] PART -B (50 MARKS) SECTION -I

2(a) Calculate Vo and Io in the circuit shown below [5M] R15 Page 2 of 3 (b) Define Inductance and Capacitance . Also derive the V -I relations in L and C . [5M] OR

3 State an d Explain Kirchhoff’s laws with an example. [10M] SECTION -II 4(a) For the bridge network shown in Fig., find Rab and i.

[5M] (b) Write basic cut -set and basic tie set matrices for the following graph by taking 1,2,3 as three branches as shown in F ig.

[5M] OR 5(a) Find the voltage Vab in the network shown in Fig.

[5M] (b) Describe the series and parallel connection of resistor s and also derive the expressions for voltage and current division rules . [5M] SECTION -III 6(a) A coil of resi stance 5 Ω and inductance 120 mH in series with

a 100 μF capacitor, is connected to a 300 V, 50 Hz supply.

Calculate (i) the current flowing, (ii) the phase difference Between the supply voltage and current(iii) the voltage across the coil and (iv) the voltage across the capacitor. [5M] (b) In an A.C circuit, define real power, reactive power and apparent power. Also develop relation between them. [5M]

OR 7(a) The voltage of a circuit is v = 200 sin ( ωt + 300) and the current is i = 50 sin( ωt + 90o). Calculate i. The average power, reactive volt -amperes and apparent power.

ii. Find the circuit elements if ω=50π rad /sec. [5M] Page 3 of 3 (b) Calculate the RMS value of the current wave form shown below .

[5M] SECTION -IV 8(a) State and discuss milliman’s and compensation theorem. [5M] (b) For the circuit shown below in calculate ix and the power dissipated by the 10 -Ω resistor using superposition.

[5M] OR 9 State and Explain Thevenin’s Theorem with an example. [10M] SECTION -V 10(a) Why hysterisis and eddy current losses occur in a transformer. [5M]

(b) When a transformer is supplied at 400 V 50 Hz the hysterisis loss is found to be 310 watts and eddy current loss is found to be 260 watts. Determine the hysterisis and eddy current loss when the transformer is supplied at 800 V 100 Hz. [5M] OR 11 Determine the efficiency and regulation of a single phase transformer by

conducting (a) open circuit test and (b) short circuit test. And the equivalent diagram of a single phase transformer. [10M] ****** Page 1 of 2 Code No: R15A0302

MALLA REDDY COLLEGE OF ENGINEERING & TECHNOLOGY (Autonomous Institution – UGC, Govt. of India) I B.Tech II Semester Advance Supplementary Examinations, June 2019 Engineering Drawing (ME & AE)

Roll No Time: 3 hours Max. Marks: 75 Note: This question paper Consists of 5 Sections. Answer FIVE Questions, Choosing ONE Question from each SECTION and each Question carries 1 5 marks.

*** SECTION -I 1 A circle of 50 mm diameter rolls on the circumference of another circle of 175 mm diameter and outside it. Trace the locus of the point on the circumference of the rolling circle for one complete revolution. Name the curve. Draw normal and

tangent to the curve at a point 125 mm from the center o f the directing circle [15M] OR 2 On a map the distance between two points is 14 cm. the real distance between them is 20 km. Draw a diagonal scale of this map to read Km and Hm, and to measure up to 20 Km show a distance of 17.6 Km on this scale. [15M]

SECTION -II 3 A line AB, 65 mm long, has its end A 20 mm above the H.P. and 25 mm in front of the V.P. The end B is 40 mm above the H.P. and 65 mm in front of the V.P.

Draw the projections of AB and show its inclinations with the H.P. and the V.P. [15M] OR 4 (a) A point P is 20 mm below H.P and lies in the third quadrant. Its shortest distance from XY is 40 mm. Draw its projections [8M]

(b) A point Q is situated in the first quadrant. It is 40 mm above H.P and 30 mm in front of V.P . Draw its projections and find its shortest distance from the intersection of H.P, V.P and auxiliary plane [7M] SECTION -III 5 Draw the projections of a regular pentagon of 25 mm side, having its surface

inclined at 300 to the HP and a side parallel to the HP and inclined at an angle of 600 to the VP. [15M] OR 6 A hexagonal prism of 35mm edge of base and 70mm length of axis is having an edge of base in the HP and the rectangular face containing that edge is inclined

30° to HP and perpendicular to VP. Draw the projections [15M] SECTION -IV 7 Draw the isometric view of a hexagonal pyramid of side of base 30 mm and height 75 mm, when it is resting on HP such that an edge of the base is parallel to VP [15M]

OR 8 Draw the isometric drawing of a cone of base diameter 30 mm and axis 45 mm long. Use the offset method [15M] R15 Page 2 of 2 SECTION -V

9 Draw the orthographic views for the solid given below [15M] OR 10 Draw the isometric view of the given orthographic projection [15M]

********** Page 1 of 2 Code No: R15A001 2 MALLA REDDY COLLEGE OF ENGINEERING & TECHNOLOGY (Autonomous Institution – UGC, Govt. of India)

I B.Tech II Semester Advance Supplementary Examinations, June 2019 Engineering Physics- II (Common to all branches) Roll No Time : 3 hours Max. Marks: 75

Note: This question paper contains two parts A and B Part A is compulsory which carriers 25 marks and Answer all questions.

Part B Consists of 5 SECTIONS (One SECTION for each UNIT). Answer FIVE Questions, Choosing ONE Ques tion from each SECTION and each Question carries 10 marks.

*** PART -A (25 Marks) 1). a Define space lattice, basis, unit cell and lattice parameters [2M] b Discuss about lattice planes. [3M] c Write short notes on point defects. [2M]

d What are the draw backs of Laue method. [3M] e Write any four properties of ultrasonic waves. [2M] f Write short notes on piezo -electricity. [3M] g Define magnetic moment, magnetic susceptibility, magnetic fiel d intensity an d permeability [2M]

h Write the properties of para magnetic materials. [3M] i Compare bottom up and down fabrication methods of nanomaterials [2M] j Explain basic principle of sol -gel method. [3M] PART -B (50 MARKS) SECTION -I

2 a) Discuss in detail about primary and secondary bonds between the atoms [5M] b) Calcula te the packing fraction of simple cube. [5M] OR 3 a) Derive an expression for inter planar distance in cubic crystal. [5M] b) Discuss about salient feat ures of miller indices and their significance. [5M]

SECTION -II 4 a) Define atomic number, coordination number and packing fraction. [3M] b) Explain determination of lattice parameters using Laue method of X -ray diffraction. [7M] OR

5 a) Calculat e the concentration of Frenkel defects at a given temperature. [7M] b) Write short notes on line defects. [3M] SECTION -III 6 a) Define oriental polarization. [3M] b) Derive an expression for internal fields in dielectric materials. [7M]

OR 7 a) Discuss about the production of ultrasonic waves using piezoelectric methods. [6M] R15 Page 2 of 2 b) Describe detection and properties of ultrasonic waves. [4M] SECTION -IV

8 a) Give an account of properties of superconductors. [4M] b) Discuss about doma in theory of ferromag netism. [6M] OR 9 a) Give an account of soft and hard magnetic materials [6M] b) Discuss about Meissner effect. [4M]

SECTION -V 10 a) Explain synthesis of nanomaterials using physical vapour deposition. [5M] b) Discus s about the effect of surface to volume ratio on nano materials . [5M] OR 11 a) Explain principle and working of scanning electron microscopy. [6M]

b) Discuss about the determination of crystal parameters using XRD [4M] ****** Page 1 of 2 Code No: R15A0014 MALLA REDDY COLLEGE OF ENGINEERING & TECHNOLOGY

(Autonomous Institution – UGC, Govt. of India) I B.Tech II Semester Advance Supplementary Examinations, June 2019 Environmental Studies (ECE, CSE & IT) Roll No

Time: 3 hours Max. Marks: 75 Note: This question paper contains two parts A and B Part A is compulsory which carriers 25 marks and Answer all questions.

Part B Consists of 5 SECTIONS (One SECTION for each UNIT). Answer FIVE Questions, Choosing ONE Question from each SECTION and each Question carries 10 marks.

**** PART -A (25 Marks) 1). a What are the components of Ecosystem? [2M] b Write the significance of biogeochemical cycle in pollution abatement. [3M] c Write about Hydrogen as a fuel. [2M]

d Write the importance of forests. [3M] e What is meant by species diversity? [2M] f Define Hotspot and write about Hotspots in India. [3M] g What are the impacts of Climate change? [2M] h Identify the sources of noise pollution in rural areas. List out the health

hazards of noise pollution. [3M] i What is Ecological Foot print? [2M] j What are the salient features of wildlife protection act? [3M] PART -B (50 MARKS) SECTION -I

2 A) Explain the terms “Food Chain” and “Food Web” with suitable examples?

B) What are Bio -geochemical cycles?

C) What is an ecological pyramid ? [4+3+3 M] OR 3 Explain the mechanism involved in the energy flow between various components of an ecosystem [10M] SECTION -II

4 What are non -conventional energy resources? Write their merits. [10M] OR 5 A) Explain the causes and effects of deforestation.

B) What are the benefits and problems of big dams? [5+5M] SECTION -III 6 A) Enumerate the reasons and need for: genetic diversity and ecosystem diversity.

B) With examples, discuss the social values of biodiversity. [7+3M] R15 Page 2 of 2 OR 7 Briefly explain Biogeographical classification of India and write about the conservation of Biodiversity. [10M]

SECTION -IV 8 Describe the mechanism of polluting the soil by: excess use of fertilizer, pesticides and excess salts. [10M] OR 9 A) Define Air Pollution. What are the sources of air pollution?

B) Write the impacts of modern agriculture. [5+5M] SECTION -V 10 A) Write an essay on the National Environment Policy of India.

B) Explain different Constitutional measures and legislative measures taken by Govt of India for environmental protection.

C) Write short notes on Environmental Ethics. [3+4+3 M] OR 11 Explain the characteristics, structure, stages and techniques used for Environmental Impact Assessment (EIA). [10M] ******

Page 1 of 2 Code No: R15A0022 MALLA REDDY COLLEGE OF ENGINEERING & TECHNOLOGY (Autonomous Institution – UGC, Govt. of India) I B.Tech II Semester Advance Supplementary Examinations, June 2019

Mathematics -II (Common to all branches) Roll No Time: 3 hours Max. Marks: 75 Note: This question paper contains two parts A and B

Part A is compulsory which carriers 25 marks and Answer all questions.

Part B Consists of 5 SECTIONS (One SECTION for each UNIT). Answer FIVE Questions, Choosing ONE Question from each SECTION and each Question carries 10 marks.

*** PART -A (25 Marks) 1). a What are the demerits of Newton -Raphson Method . [2M] b Show that (1+∆)(1−∇)=1 [3M] c Write normal equations for to fit the straight line 𝑦𝑦=𝑎𝑎+𝑏𝑏𝑏𝑏 [2M]

d Evaluate ∫11+𝑥𝑥𝑑𝑑𝑏𝑏10 , by Simpson’s one -third rule. [3M] e Define periodic function. [2M] f Write the Dirichlet condition for existence of fourier series of a function [3M]

g Form partial differential equation by eliminating arbitrary constants 𝑎𝑎 and 𝑏𝑏 from 𝑧𝑧=𝑎𝑎𝑏𝑏3+𝑏𝑏𝑦𝑦3 [2M] h Solve partial differential equation 𝑝𝑝𝑝𝑝𝑧𝑧 =𝑝𝑝2(𝑝𝑝𝑏𝑏+𝑝𝑝2)+𝑝𝑝2(𝑝𝑝𝑦𝑦+𝑝𝑝2) [3M] i Find the unit normal vector to the surface 𝑏𝑏2𝑦𝑦+2𝑏𝑏𝑧𝑧=4 𝑎𝑎𝑎𝑎 𝑎𝑎ℎ𝑒𝑒 𝑝𝑝𝑝𝑝𝑝𝑝𝑝𝑝𝑎𝑎 (2,−2,3) [2M]

j Find the work done in a moving in the force field 𝐹𝐹�=3𝑏𝑏2𝚤𝚤̅+𝚥𝚥̅+𝑧𝑧𝑘𝑘� along the straight line from (0,0,0) to (2,1,3). [3M] PART -B (50 MARKS) SECTION -I 2 Find the roots of the equation 𝑏𝑏sin𝑏𝑏+cos𝑏𝑏=0 using Newton Raphson method. [10M]

OR 3 Find the interpolating polynomial f(x) from the table and also find f(3) x 0 1 4 5 f(x) 4 3 24 39 [10M]

SECTION -II 4 Fit a second degree polynomial to the following data by method of least squares x 0 1 2 3 4 y 1 1.8 1.3 2.5 6.3 [10M]

OR 5 Find y(0.1),y(0.2) by Runge -Kutta method of fourth order for the differential equation𝑑𝑑𝑑𝑑𝑑𝑑𝑥𝑥=𝑏𝑏𝑦𝑦+𝑦𝑦2,𝑦𝑦(0)=1 [10M] R15 Page 2 of 2

SECTION -III 6 Obtain the fourier series for 𝑓𝑓(𝑏𝑏)=𝜋𝜋−|𝑏𝑏−𝜋𝜋| in [0,2𝜋𝜋]. Hence deduce that 112+132+1

52+⋯.=𝜋𝜋28 [10M] OR 7 Find the half range sine series for 𝑓𝑓(𝑏𝑏)=𝑏𝑏(𝜋𝜋−𝑏𝑏) 𝑝𝑝𝑝𝑝 0<𝑏𝑏<𝜋𝜋. Deduce that 1

13−133+153−173+⋯=𝜋𝜋232 [10M]

SECTION -IV 8 a) Solve 𝑝𝑝𝑏𝑏−𝑝𝑝𝑦𝑦=𝑦𝑦2−𝑏𝑏2 b) Solve 𝑝𝑝𝑏𝑏+𝑝𝑝𝑦𝑦=𝑝𝑝𝑝𝑝 [5M] [5M] OR

9 Solve by method of separation of variables 𝑢𝑢𝑥𝑥=2𝑢𝑢𝑡𝑡+𝑢𝑢 ,𝑤𝑤ℎ𝑒𝑒𝑒𝑒𝑒𝑒 𝑢𝑢(𝑏𝑏,0)=6𝑒𝑒−3𝑥𝑥 [10M] SECTION -V 10 Verify Green’s theorem for ∮(𝑦𝑦−sin𝑏𝑏)𝑑𝑑𝑏𝑏+cos𝑏𝑏𝑑𝑑𝑦𝑦 where C is the triangle enclosed by the lines 𝑦𝑦=0,𝑏𝑏=𝜋𝜋

2,𝜋𝜋𝑦𝑦=2𝑏𝑏 [10M] OR 11 a. Find the angle between the surfaces x2+y2+z2 =9, and z = x2+y2- 3 at point (2,-1,2).

b. Find constants a,b and c if the vector = is Irrotational [5M] [5M] ******

fkz cyx jz y bxiazy x )3 2( )3 2 () 3 2( ++++++++Page 1 of 2 PART -A (25 Marks) 1). a How does a main() function in C++ differ from main in C? [2M]

b What is a reference variable in C++? [3M] c Is it possible to have a recursi ve inline function? [2M] d What is volatile keyword? [3M] e How do we invoke a constructor function ? [2M] f Can I use malloc() function of C language to allocate dynamic memory in C++? [3M]

g Why it is necessary to overload a n operator? [2M] h What is a virtual base class? [3M] i Write a template function to multiply by a scalar value. [2M] j When do we use multiple catch handlers? [3M] PART -B (50 MARKS)

SECTION -I 2 a) What is the use of Manipula tors? Show with an example b) Write the structure of C++ program.

c) List few areas of applications of OOP technology. [3M] [3M] [4M] OR 3 a) Differentiate between class and structure? Explain the syntax for defining a

class.

b) Write a C++ Program to Accept a Matrix and Interchange the Diagonals [5M] [5M] SECTION -II 4 a) Demonstrate how a Friend function works as bridge in between two classes.

b) Define a inline function with an example? Write the limitations of it. [5M] [5M] OR 5 a) Discuss briefly about static data members and static member function .

b) Write a program to demonstrate objects as arguments to function. [5M] [5M] SECTION -III 6 a) What is inheritance? Give the different types of inheritance in C++ with example programs. [7M]

Code No: R15A0502 MALLA REDDY COLLEGE OF ENGINEERING & TECHNOLOGY (Autonomous Institution – UGC, Govt. of India) I B.Tech II Semester Advance Supplementary Examinations, June 2019 Object Oriented Programming

(Common to all branches ) Roll No Time: 3 hours Max. Marks: 75 Note: This question paper contains two parts A and B Part A is compulsory which carriers 25 marks and Answer all questions.

Part B Consists of 5 SECTIONS (One SECTION for each UNIT) . Answer FIVE Questions, Choosing ONE Q uestion from each SECTION and each Question carries 10 marks.

**** R15 Page 2 of 2 b) Write a program to de monstrate a copy constructor. [3M] OR 7 a) Explain in detail about the Constructor overloading.

b) Write a program to overload a binary operators. [5M] [5M] SECTION -IV 8 a) Write a program to demonstrate arithmetic operations on pointers b) Explain the Runtime polymorphism with an example. [5M]

[5M] OR 9 a) Write a program to demonstrate array of pointers.

b) Differentiate between compile time and run time polymorphism with example. [4M] [6M] SECTION -V 10 a) Write a template function to demonstrate the a rithmetic operations.

b) Discuss in detail about File Streams [5M] [5M] OR 11 a) Write a program for swapping of generic data.

b) What is a file mode? Describe the various file mode options available. [5M] [5M] ******