Exam Details

Subject Principles of Electrical and Electronic Sciences
Paper
Exam / Course Bachelor of Technology in Mechanical Engineering (Computer Integrated Manufacturing) BTME
Department School of Engineering & Technology (SOET)
Organization indira gandhi national open university
Position
Exam Date June, 2016
City, State new delhi,


Question Paper

No. of Printed Pages: 4 .IBME-021I
B.Tech. MECHANICAL ENGINEERING
(COMPUTER INTEGRATED
MANUFACTURING) I
B.Tech. (AEROSPACE ENGINEERING) (BTAE)

Term-End Examination
June, 2016

BME-021 PRINCIPLES OF ELECTRICAL AND
ELECTRONICS SCIENCE

Time hours Maximum Marks: 70
Note: Attempt five questions. Question no. 1 is compulsory. Answer any two questions from Section A and any two from Section B. Use of scientific calculator is allowed.

1. State whether the following statements are True or False: 7x2=14

The resistance of a conductor increases, if its length decreases.

The power consumed by a pure inductance connected to AC source is zero.

The unit of magnetic flux intensity is AT/m.

The frequency of voltage at the secondary of a transformer is less than that of the primary.

BJT can be used as a switch as well as an amplifier.

Flip-flop is a basic memory element used in sequential circuits.

The barrier potential is equal to 0.7 V for silicon.

SECTION A

Attempt any two questions from this section.

2. State and explain Kirchhoff's laws applied to DC circuits. 7

Find the resistance at 20°C of 2 km of copper wire of cross-sectional area of 0.1 if the specific resistance of copper at this temperature is 17.3 x ohm m. What would be its resistance at 35°C, if a =0.0043°C 7

3. Deduce the analogy between magnetic and electric circuits. What are the major points of difference between them? 7

State the maximum power transfer theorem. And prove that Pmax VTh^2/4RTh for maximum power transfer theorem. 7

4. Write short notes on the following: 4x3 1/2=14

DC servomotor

Series resonance for AC circuit

Magnetic hysteresis

Quality factor

SECTION B

Attempt any two questions from this section.

5. What are intrinsic and extrinsic semiconductors Draw and explain I characteristic of a diode. 7

Draw the block diagram of IC Timer 555 and its various operating modes. 7

6. State the De Morgan's theorems with the help of logic gate and truth tables. 7

Write a short note on DAC and ADC. 7

7. Draw the circuit of R flip-flop with NOR gates and discuss the behaviour of this circuit. 7

Write short notes on the following: 7

Piezo-electrical Transducers

MOSFET


Departments

  • Centre for Corporate Education, Training & Consultancy (CCETC)
  • Centre for Corporate Education, Training & Consultancy (CCETC)
  • National Centre for Disability Studies (NCDS)
  • School of Agriculture (SOA)
  • School of Computer and Information Sciences (SOCIS)
  • School of Continuing Education (SOCE)
  • School of Education (SOE)
  • School of Engineering & Technology (SOET)
  • School of Extension and Development Studies (SOEDS)
  • School of Foreign Languages (SOFL)
  • School of Gender Development Studies(SOGDS)
  • School of Health Science (SOHS)
  • School of Humanities (SOH)
  • School of Interdisciplinary and Trans-Disciplinary Studies (SOITDS)
  • School of Journalism and New Media Studies (SOJNMS)
  • School of Law (SOL)
  • School of Management Studies (SOMS)
  • School of Performing Arts and Visual Arts (SOPVA)
  • School of Performing Arts and Visual Arts(SOPVA)
  • School of Sciences (SOS)
  • School of Social Sciences (SOSS)
  • School of Social Work (SOSW)
  • School of Tourism & Hospitality Service Sectoral SOMS (SOTHSM)
  • School of Tourism &Hospitality Service Sectoral SOMS (SOTHSSM)
  • School of Translation Studies and Training (SOTST)
  • School of Vocational Education and Training (SOVET)
  • Staff Training & Research in Distance Education (STRIDE)

Subjects

  • Advanced Manufacturing Technology
  • CNC Technology
  • Computer Aided Design
  • Computer Integrated Manufacturing
  • Computer Programmingand Application
  • ComputerAided Process Planning
  • Condition Monitoringand Maintenance Engineering
  • Energy Conversion
  • Engineering Materials
  • Engineering Mathematics Il
  • Engineering Mathematics-I
  • Engineering Mechanics
  • Engineering Thermodynamics
  • Fluid Mechanics
  • Heat And Mass Transfer
  • Industrial Engineering & Operations Research
  • Kinematics & Dynamics of Mechanisms
  • Machining Technology
  • Manufacturing Systems, Integration and Control
  • Manufacturing Technology
  • Mechanical Engineering Design
  • Mechatronics
  • Metrology and Instrumentation
  • Principles of Electrical and Electronic Sciences
  • Production Management
  • Quality Engineering
  • Robotics
  • Safety Engineering
  • Soft Computing in CIM
  • Strength of Materials
  • Tool Engineering and Management