FIRST WORK EXAMINATION QUESTIONS
 1  State the laws of charges.
 2  Define Voltage, Current and Resistance including their S.I units.
 3  What is Electrical Conduction?.
 4  Define Conductor, Semiconductor and Insulator giving also three examples each.
 5  Define each of the following given as many examples of each.
  a.  Matter.
  b.  Elementary particles.
  c.  Composite particles.
  d.  Atom.
  e.  Element.
  f.  Molecule.
  g.  Ions.
  h.  Compound.
  i.  Mixture.
 6  State the six states of matter with example of each.
 7  Draw the structure of any matter.
 8  Draw a clear circuit diagram of Frequency Reading Lamp.
 9  State the 5 elements of Electronics their definations and circuit symbols.
 10  How does frequency Reading lamp achieve Power saving better than existing lamps.
 11  Define fire accident and State the causes of fire Accident.
 12  Define an Electronic workshop, give 5 workshop tools and 5 goods that can be made, maintain or repaired in the workshop.
 13  What are the classes of fire? Giving also materials that cause each.
 14  State fire fighting equipments.
 15  Define Hazard and Accident.
 16  Write down 5 Workshop Hazards.
 17  Why do we define matter preferably as anything that has mass instead of weight?.
 18  What is the function of capacitors in the Frequency Reading lamp.
 19  What is the concept of workshop safety stating also five workshop Rules and Regulations.
 20  List all the components used in Frequency Reading lamp.


SECOND WORK EXAMINATION QUESTIONS
 1  Define electronic hand tools.
 2  With description write down 5 electronic Hand tools and their applications.
 3  What is electronics and an electronic circuit?.
 4  Write down the elements of electronics, a clear defination and schematic symbols.
 5  Define emission and electron emission.
 6  State the types of emission with examples.
 7  Write down 5 applications of electron emission.
 8  Define photo-electric devices.
 9  State the various types of photo-electric devices.
 10  Write down 5 applications of photo-electric devices.
 11  Define semiconductors with two examples.
 12  Draw the structure of pure semiconductor.
 13  State the effects of temperature change on semiconductors.
 14  Define doping, explain reason for doping and give 4 elements use for doping of semiconductors.
 15  What are the two types of semiconductor and state also the two types of impure semiconductor?.
 16  What are the elements needed to get N-Type and P-Type semiconductor?
 17  Why do we define matter preferably as anything that has mass instead of weight?.
 18  What is the function of capacitors in the Frequency Reading lamp.
 19  What is the concept of workshop safety stating also five workshop Rules and Regulations.
 20  List all the components used in Frequency Reading lamp.


THIRD WORK EXAMINATION QUESTIONS
 1  Define each of the following
  a.  Communication.
  b.  Electronic Communication
  c.  Electronic Communication System
 2  What are the factors affecting signalling and voice/verbal communication as against electronic communication?
 3  Give and explain the three types of electronic communication system with atleast two examples of each.
 4  Answer the following questions
  a.  Draw the block diagram of an electronic communication system.
  b.  Briefly explain each stage in the above block diagram.
 5  Define Noise in electronic communication system, stating the two types of noise with atleast two examples of each.
 6  Define Electric field, Magnetic field and Electromagnet.
 7  Define electromagnetic wave and electromagnetic spectrum
 8  Briefly explain all the frequencies of electromagnetic spectrum with their various applications.
 9  Define power supply and state sources of energy for power supplies.
 10  Define DC and AC giving advantage and disadvantage of each with examples of DC and AC energy sources.
 11  Answer the following accordingly
  a.  What are AC to DC Converter and examples.
  b.  What are DC to AC Converter and examples.
 12  Write down all the components used for AC to DC converter design, with circuit symbols and application.
 13  Draw and analyze the circuit diagram of the AC to DC Convert.
 14  Define Transducer and give two types of transducer with example.
 15  Write down the Seven forms of energy and their various associated transducers and applications.
 16  Answer the following questions correctly
  a.  What is modulation?
  b.  State the three reasons for modulations.
  c.  State the three types of modulation.
 17  Answer the following questions correctly
  a.  What is Demodulation?
  b.  State the reasons for Demodulations.
  a.  State three types of Demodulation.
 18  Define the following properties of sinusoidal wave
  a.  Amplitude
  b.  Wavelength
  c.  Period
  d.  Frequency
 19  Define the following
  a.  Sinusoidal wave
  b.  Modulating signal
  c.  Carrier Signal
  d.  Modulated Signal
 20  Answer the following
  a.  What is soldering?
  b.  What is soldering flux?
  c.  State the composition of Solder.
  d.  State the solder types.