BAPATLA ENGINEERING COLLEGE :: BAPATLA

Department OF Information Technology Assignment-I Question Paper

Class: 2/4 B.Tech. Section: A

Sub: P&S (IT221) Section: A&B Date: 06/03/15

1.(a)What is an insulator, a semiconductor and a metal? Explain with the help of energy band diagrams.

(b) A PN Junction diode has a reverse saturation current of 30 A at a temperature of 125 C. At the same temperature find the dynamic resistance for 0.2V bias in forward and reverse bias.

2. Explain in detail about the VI characteristics of PN junction diode in forward bias and reverse bias conditions.

3. (a) Explain Half-wave Rectifier and derive it’s ripple factor. (b) Compare Half-wave Rectifier (HWR), centre tapped Full Wave Rectifier (FWR),Bridge

rectifier. 4. (a) Explain centre tapped Full Wave Rectifier and derive ripple factor and efficiency. (b) Explain in different breakdown mechanisms in diode? 5.(a) Explain about Bridge rectifier using neat diagram and derive ripple factor and efficiency. . (b) Write a short note on Load line concept?

Sub: EDC (IT222) Section: A Date: 07/03/15

1. Classify the D.C machines on the basis of excitation and write the voltage, current equations

in each type. 2. Draw the construction diagram of D.C generator and Explain each part. 3. Drive the E.M.F Equation of D.C generator and also explain the significance of back EMF in

D.C Motor 4. (a)Drive the Torque Equation of D.C motor 6M

(b)An 8pole lap wound d.c generator has 960 armature conductors, the flux per pole being 0.05wb. If it is driven at a speed of 250 r.p.m, find the e.m.f induced in the generator.

5. (a) Explain the working principle and working of D.C generator 7M (b) a shunt generator delivers 450A at 230v and the resistance of the shunt field and armature

are 50ohm,0.03ohm respectively . Calculate the generator e.m.f ? 3M 6. (a) A 4-pole generator with 650 armature conductors generating 525V when running at 1050

rpm. Calculate the flux per pole when the armature is (i) Lap wound (ii) Wave wound 6M (b) Explain open circuit characteristics (O.C.C) of D.C Generator. 4M 1. Explain the features of java, JDK and JRE. Explain the variables, data types, literals, operators and control statements in java. Write a program that reads and prints int, double,char and string data. Add code to reverse a number using for, while and do-while loops. 2. Explain the declaration and initialization of one dimensional and two dimensional arrays. Write a program using methods to read, print and sort one dimensional arrays. Write a program using methods to read, print and multiply two matrices. 3. Define a class and an object. Explain instance fields, static fields, instance methods, static methods,static blocks, blocks, final and bank finals with example code. Design a class BankAccount with appropriate fields and methods. 4. Explain the different access specifiers. Explain the features of Inheritance, overloading, overriding and polymorphism with example code. A person has an aadhar number, name and age and methods to print the name and print the complete details. An Employee is a person with an employee Id, designation and salary per day and methods to calculate the salary given the number of working days, to print the salary and print the complete details. Implement the class hierarchy and create a list of persons to print the details with salary for employees. 5. Define an abstract class and an interface. Explain their features. Design an abstract class Shape with x, y coordinates and methods move, resize, getArea and getPerimeter methods. Derive classes Circle and Rectangle. Create a list of Shape objects and print their details. Write another program for accomplishing the same with the abstract class replaced by an interface. 6. Explain the different features of String class in java. List the string methods and their usage with examples. . Explain the different features of StringBuffer class in java. List the StringBuffer methods and their usage with examples. Write a program to read names with first name and last name separated by space and modify the strings with lastname followed by first name. 1. Explain the SIC Machine Architecture. 10M 2. Explain the SIC/XE Machine Architecture. 10M 3. Explain CISC Machine Architectures. 10M 4. Explain RISC Machine Architectures. 10M 5. a) Explain CRAY T3E Machine Architecture. 6M b) Write differences between RISC & CISC Machines. 4M 6. Write and Explain the Pass 1 Algorithm of an Assembler 10M

Sub: ET (IT223) Section: A Date: 09/03/15

Sub: GUI (IT224) Section: A Date: 10/03/15

Sub: SS (IT225) Section: A Date: 11/03/15

1. a) Draw 8086 internal architecture and explain bus interface unit(BIU) in detail. 6M b) Write an assembly language (WALP) program to perform all arithmetic operations on two 8 bit

numbers. 4M 2. a) Draw 8086 internal architecture and explain Execution unit (EU) in detail. 6M

b) Write an assembly language program to perform all arithmetic operations on two 16 bit numbers. 4M

3. a) Explain about conditional and unconditional jump instructions. 6M b) WALP to add the digits of given 8 bit number. 4M

4. a) Write about various addressing modes of 8086 micro processor. 5M b) What are various steps involved in developing an assembly language program. 5M

5. a) Discuss about assembly language program development tools with the help of flowchart. 7M

b) WALP to read a string from the keyboard and display it on the screen. 3M 6. a) Explain about the following 8086 instructions

(i) Data Transfer (ii) Arithmetic (iii) Bit manipulation 7M b) How to construct machine code for 8086 instruction with the help of example. 3M

Sub: MPMC (IT226) Section: A&B Date: 12/03/15