Page 1 of 2 Code No: R17A0022 MALLA REDDY COLLEGE OF ENGINEERING & TECHNOLOGY (Autonomous Institution – UGC, Govt. of India) I B.Tech II Semester Supplementary Examinations , April/May 2019

Mathematics -II (Common to all branches) Roll No Time: 3 hours Max. Marks: 7 0 Note: This question paper Consists of 5 Sections. Answer FIVE Questions, Choosing ONE Question

from each SECTION and each Question carries 1 4 marks.

*** SECTION -I 1 a) b) Find a real root of the equation

01 )(3 xxxf using Bisection method Using Newton - Raphson method to find the root of the equationx exfx3 )( that lies between 0 and 1. [7M] [7M]

OR 2 The t able below gives the values of xtan for 30.0 10.0x

x 0.10 0.15 0.20 0.25 0.30 x ytan 0.1003 0.1511 0.2027 0.2553 0.3093 Find (a) tan 0.12 (b) tan 0.26 [14M ]

SECTION -II 3a) b) Evaluate0sin dxx by dividing the range into 10 equal parts using

i. Trapezoidal rule ii. Simpson,s 31 rule Using Taylor series, find)1.0(y , Given that

xydxdy1 and 1)0( y [10M ] [4M] OR 4 a)

b) Using Picard’s method , find)1.0(y , Given that xyxydxdy and

1)0( y Find the curve of best fit of the typebxaey to the following data by the method of least squares x 2 4 6 8 10

y 4.077 11.084 30.128 81.897 222.62 [6M] [8M] SECTION -III 5 a) b) Find a Fourier series for=

22)( xxf for 2 0x

Obtain half range cosine series for x xxf 0,)( [8M] [6M] R17 Page 2 of 2 OR

6 a) b) Find the Fourier series to represent the function  x x xf |, sin|)( Find the half range sine series for the function 1 0, )(2 t tttf [7M]

[7M] SECTION -IV 7 a) b) Form the partial differential equation by eliminating the arbitrary function f from

yxzf zxyz xy

Solve ) ( ) ( ) (2 2 2yxzqxzypzyx  [7M] [7M] OR

8 a) b) Solve z y qx p tan tan tan  Solve z=px+qy+pq [10M ]

[4M] SECTION -V 9 a) b) Find the Laplace transform of

t ett3sin Find 2cos1

ttL [7M] [7M] OR 10a)

b) Find the Laplace transform of (i) te ebt at (ii) t t 5sin3cos Using Convolution theorem, Evaluate

22 21assL

[6M] [8M] ********** Page 3 of 2 Code No: R17A0012

MALLA REDDY COLLEGE OF ENGINEERING & TECHNOLOGY (Autonomous Institution – UGC, Govt. of India) I B.Tech II Semester Supplementary Examinations , April/May 2019 Engineering Physics -II (Common to all branches)

Roll No Time: 3 hours Max. Marks: 7 0 Note: This question paper Consists of 5 Sections. Answer FIVE Questions, Choosing ONE Question from each SECTION and each Question carries 1 4 marks.

**** SECTION -I 1 (a) Explain the forces between the two interacting atoms when they are brought to near to form a molecule.

(b) Describe the crystal structure of NaCl. [7M+7M ] OR 2 (a) Describe with a suitable example, the formation of covalent bonds in solids.

(b) Deduce the expression for the inter -planar spacing in the case of cubic structure. [7M+7M ] SECTION -II 3 (a) Describe with a neat diagram Laue’s method of determine the crystal structure.

(b) Write notes on Point defects in crystals [7M+7M ] OR 4 (a) What are the applications of X -ray diffraction studies?

(b). Derive an expression for concentration of Frenkel defect in an ionic crystal. [4M+10M ] SECTION -III 5 (a) Explain Clausius Mosotti relation in dielectrics subjected to static fields.

(b) With usual notation show that P = E o(r -1) [10M+4M ] OR 6 (a) Explain ionic polarization mechanism in dielectric materials.

(b) Define (i) Polarizability (ii) Dielectric constant . [10M+4M ] SECTION -IV 7 (a) What is Meissner effect? Explain.

(b) Explain the classification of magnetic materials. [5M+9M ] OR 8 (a) Describe properties of Superconductors.

(b) Define the terms magnetic susceptibility, magnetic induction and permeability. [8M+6M ] SECTION -V 9 (a) What are Nanomaterials? Why do they exhibit different properties?

(b) Describe the term Quantum confinement. [6M+8M ] OR 10 (a) Write note on surface to volume ratio of nano -particles.

(b) Give the advantages of TEM. [8M+6M ] ********** R17 Page 4 of 2 Code No: R17A0014

MALLA REDDY COLLEGE OF ENGINEERING & TECHNOLOGY (Autonomous Institution – UGC, Govt. of India) I B.Tech II Semester Supplementary Examinations, April/May 2019 Environmental Studies (EEE, ECE, CSE & IT)

Roll No Time: 3 hours Max. Marks: 70 Note: This question paper Consists of 5 Sections. Answer FIVE Questions, Choosing ONE Question from each SECTION and each Question carries 14 marks.

*** SECTION -I 1 a) List t he main components of ecosystem and its function. [10M] b) Mention type of cycles we have in an ecosystem. Explain how water circulates on earth. [4M]

OR 2 a) Discuss the significance of food chains and food webs with relevant examples. [8M] b) What is biomagnification ? Explain biomagnification with an example. [6M] SECTION -II

3 a) What are natural resources? Classify. [4M] b) Explain how water becomes a renewable resource. What are the effects of over exploitation of water resources? [10M] OR 4

a) Write a note on non -renewable energy resources. Explain how almost every source of energy has its limits. [10M] b) What changes would you incorporate in your life -style in a move towards a sustainable use of our resources? [4M] SECTION -III

5 a) Define Biodiversity . Describe the various threats to Biodiversity [7M] b) What is the value of biodiversity? Summarize consumptive use value, social value, ethical value and aesthetic value of biodiversity. [7M] OR 6 a) Explain hot spots of biodiversity and mention three hot spots found in

India. Discuss their salient features. [10M ] b) Explain how the study of biodiversity is beneficial to human life? [4M] SECTION -IV 7 a) Describe the major sources , causes effects and control measures for air pollution . [10M]

b) What adverse effects can solid wastes cause? Discuss how the solid waste can be managed. [4M] OR 8 a) Enumerate any five major categories of water pollutants, their sources and effects. [8M]

b) What is ozone layer and what are ozone depleting substances? Why is it [6M] R17 Page 5 of 2 getting depleted?

SECTION -V 9 a) Define sustainable development. What are the threats and strategies for sustainable development? [10M] b) What is meant by protocol? What are the results of implementation of the Montreal protocol? [4M]

OR 10 a) Discuss the salient features of Environmental protection Act, 1986. [8M] b) Write a short note on Environmental management plan. [4M] c) What is earth summit? [2M] **********

Page 6 of 2 Code No: R17A0502 MALLA REDDY COLLEGE OF ENGINEERING & TECHNOLOGY (Autonomous Institution – UGC, Govt. of India) I B.Tech II Semester Supplementary Examinations , April/May 2019

Object Oriented Programming through C++ (Common to All Branches) Roll No Time: 3 hours Max. Marks: 7 0 Note: This question paper Consists of 5 Sections. Answer FIVE Questions, Choosing ONE

Question from each SECTION and each Question carries 1 4 marks.

*** SECTION -I 1 a)What are the features of object programming language? [7M] b)Write a C++ Program to reverse of an integer? [7M] OR

2 a) How do variable declare and initialization performed in C++? Explain with one example? [7M] b) Write program to find whether the given number is strong number or not. [7M] SECTION -II 3 a)Define inline function? Write a program for finding the area of a triangle using

inline functions. [7M] b)What are classes? Create a class with the following data members?

Name of the class: Vehicle, Data members: name, model, company, Price, and variants, Member functions: putdetails() and getdetails() to set and display Vehicle details respectively? [7M] OR 4

Explain about the static data members and static member functions with example Program [14M] SECTION -III 5 Write a C++ program to implement parameterized constructor [14M ] OR

6 Explain about the multiple Inheritance with an example program. [14M ] SECTION -IV 7 What is operator overloading? Write a C++ program illustrating Overloading binary operators? [14M ] OR

8 Write short notes on compile time polymorphism, run time polymorphism and write a C++ program to implement virtual functions [14M ] SECTION -V 9 What is an Exception? Explain about try, throw and catch with example? [14M ] OR

10 Write a program to catch multiple exceptions thrown from a single try block? [14M ] ********** R17 Page 7 of 2 Code No: R17A0201 MALLA REDDY COLLEGE OF ENGINEERING & TECHNOLOGY

(Autonomous Institution – UGC, Govt. of India) I B.Tech II Semester Supplementary Examinations , April/May 2019 Electrical Circuits (EEE, ECE, CSE & IT) Roll No

Time: 3 hours Max. Marks: 7 0 Note: This question paper Consists of 5 Sections. Answer FIVE Questions, Choosing ONE Question from each SECTION and each Question carries 1 4 marks.

*** SECTION -I 1 (a) Derive the equation for energy stored in the capacitor and Inductor (b) Write short notes on types of sources. Showing their schematic symbols [14M ] OR

2 (a) Explain in detail the V -I relations of circuit elements (b) Explain Kirchhoff’s Laws [14M ] SECTION -II 3 (a) Calculate the current in the 50Ω resistor in the network shown in

the fig .1 using mesh analysis (b) What are the properties of an incidence matrix and cut set matrix?

20Ω40Ω30Ω50Ω10

Ω60Ω20V100V 50VFig. 1 [14M ] OR

4 (a) Explain the nodal analysis with an example ?

(b) Write the incidence matrix of the oriented graph given below.

1234 [14M ] SECTION -III

5 (a) A circuit consists of a series connected resistance of 10 ohms a capacitance of 150μ F and an inductance of 16mH connected across a supply of 100V at 50Hz. Evaluate (a) circuit current (b) power factor and (c) power consumed by the circuit. Draw the phasor diagram.

(b) Explain the average and R.M.S val ue? [14M ] R17 Page 8 of 2 OR 6 (a) Explain about series R -C circuit?

(b) Explain series RL circuit? [14M ] SECTION -IV 7 (a) Explain and derive maximum power transfer theorem?

(b) For the valve of R L in fig. for Maximum power transfer and calculate the maximum power 100V40 Ω10 Ω20 Ω

30 ΩRL [14M] OR 8 (a) Explain the statement of superposition theorem?

(b) Using the superposition theorem, determine the voltage drop and current across the resistor 3.3 kΩ as shown in figure below [14M ] SECTION -V 9 (a) Explain self -inductance and mutual inductance?

(b) Explain about series aiding and series opposition of Inductors. ? [14M ] OR 10 (a) Explain in detail about coefficient of coupling?

(b) State f araday’s laws of electromagnetic induction ? [14M ] ********** Page 9 of 2 Code No: R17A0302 MALLA REDDY COLLEGE OF ENGINEERING & TECHNOLOGY

(Autonomous Institution – UGC, Govt. of India) I B.Tech II Semester Supplementary Examinations, April/May 2019 Engineering Drawing (ME & AE) Roll No

Time: 3 hours Max. Marks: 70 Note: This question paper Consists of 5 Sections. Answer FIVE Questions, Choosing ONE Question from each SECTION and each Question carries 14 marks.

***** SECTION -I 1 Draw a hypocycloid of circle of 4 cm diameter which rolls inside another circle of 20 cm diameter for one revolution and also draw a tangent and normal at a point 9 cm from the centre of the base circle. [14M ]

OR 2 Construct a scale RF 1:40 read meters and decimeters and long enough to measure up to 6M. Mark on it a distance of a) 4.2 M b) 2.7 M on it.

.

[14M ] SECTION -II 3 Draw the projections of following points on the same ground line keeping the projectors 25 mm apart a. A in the HP and 20 mm behind the VP

b. B 40 mm above the HP and 25 mm in front of the VP c. C in the VP. And 40 mm above the HP.

d. D 25 mm below the HP and 25 mm behind the VP.

e. E 15 mm above the HPand 50 mm behind the VP f. F, 40 mm below the HP. And 25 mm infront of the VP g. G, both in the HP& VP.

. [14M ] OR 4 A straight line PQ has its end P at 20mm above the H.P. and 30mm in front of V.P. and the end Q is 80mm above H.P. and 70mm in front of V.P. if the end

projectors are 60mm apart. Draw the projections of the line. Determine its true lengths, true inclinations with the ref erence planes [14M ] SECTION -III 5 A circular plane with an 80mm diameter has one of the ends of the diameter in the HP. The surface of plane is inclined at 300 to the HP and end containing diameter

is 600 to the VP. Draw its projections. [14M ] OR 6 A hexagonal pyramid having a base with a 30mm side and 80mm long axis, is freely suspended from one of the corners of the base. Draw its projections when its axis is parallel to the VP [14M ] R17

Page 10 of 2 SECTION -IV 7 Draw an isometric view of the frustum of a hexagonal pyramid having 35mm base side, 20mm topside and 80mm long axis, is resting on its base on the HP with an edge of the base parallel to the VP. [14M ]

OR 8 A Sphere of radius 50 mm is kept centrally over a frustum of square pyramid of side 120 mm at the bottom, 80 mm at the top, and having a height of 100 mm.

Draw the isometric projection of combined solid. [14M ] SECTION -V 9 Draw the isometric view of the casting whose front and top views afre shown in Fig. All dimensions are in mm.

p [14M ] OR 10 Draw the front view, top view and side view for the component shown in fig. All dimensions are in mm.

[14M ]