These are some practical worksheets for Electronics Engineering for 3529-12 City & Guilds Skills Proficiency Certificate. It can be used as evidence and can use multisim software for simulation of the assignment questions.

1. INSTRUCTIONS:
1. Read the questions properly.
2. Provide the answer on the same sheet, student can use separate sheet where
necessary
PRACTICAL ASSIGNMENT – 01
NAME
CLASS
DATE
LEVEL Skill Proficiency Certificate
QUALIFICATION NO 3529-12
PRACTICAL
COMPETENCY
Electronic Applications
- Rectifier Filter
- Shunt Regulator Circuit
- Series Regulator Circuit
TASK 2.7 a Construct a voltage stabiliser using a series resistor and a
zener diode.
b Connect a load resistor to the circuit.
c Connect a d.c. supply to the input and measure the voltage
across the load resistor for changes in d.c. supply voltages.
d Record input and output voltages.
2.8 Convert circuit diagrams into layout diagrams.
2.9 Sketch a circuit diagram (to include d.c. power supply
connections) of a common emitter amplifier utilising an NPN
transistor, a base bias resistor and a collector load resistor.
TOTAL MARKS 100 MARKS OBTAINED
%AGE RESULT (PASS/FAIL)
INSTRUCTOR/ASSESSOR
NAME
INSTRUCTOR/ASSESSOR
SIGNATURE

2. Task:
A (i) Half Wave Rectifier
Figure 1: Half Wave Rectifier
Figure 2: Graph for Input & Output

3. A (ii) Full Wave Bridge Rectifier
Figure 3: Full Wave Bridge Rectifier
Figure 4: Graph for Output

4. B (i) Capacitor Filter Circuit
Figure 5: Capacitor Filter Circuit
Figure 6 : Graph for Output (RL is not Connected)

5. Figure 7 : Graph for Output (RL = 1k)
Figure 8 : Graph for Output (RL= 150)

6. C (i) Shunt Regulator
Input voltage keep constant
Figure 9 : Shunt Regulator
Figure 10 : Output Graph (RL)

7. VI (DC) RL IL VL VR IL IR
5V
1mA
5mA
10mA
10V
1mA
5mA
10mA
12V
1mA
5mA
10mA
Table 1 : Output Calculation Table

8. COMPETENCY CHECKLIST
COMPETENCY LEVEL:
C = COMPETENT, NC= NOT COMPETENT, PC = PARTIALLY COMPETENT
NO TASK MAXIMUM
MARKS
MARKS
OBTAINED
COMPENTENCY
LEVEL
ASSESSOR
COMMENTS
TASK A(i)
1 Circuit Wiring 5
2 Accurate Graph
Drawn
10
TASK A(ii)
1 Circuit Wiring 5
2 Accurate Graph
Drawn
10
TASK B(i)
1 Circuit Wiring 5
2 Graph for Output
(RL is not
Connected)
10
3 Graph for Output
(RL = 1k)
10
4 Graph for Output
(RL = 150)
10
TASK C(i)
1 Circuit Wiring 5
2 Graph for Output
(RL)
10
3 Output
Measurement for
Table 1
20
Guideline:
C = 60% and Above
PC = 40-59%
NC = 0-39%

9. PRACTICAL ASSIGNMENT – 02
NAME
CLASS
DATE
LEVEL Skill Proficiency Certificate
QUALIFICATION NO 3529-12
PRACTICAL
COMPETENCY
Electronic Applications
TASK 2.9 Sketch a circuit diagram (to include d.c. power supply connections) of a
common emitter amplifier utilizing an NPN transistor, a base bias resistor
and a collector load resistor.
2.10
a. With reference to 2.9, construct a simple common emitter amplifier
circuit.
b. Test the collector voltage).
c. Transfer the amplifier circuit to strip board (veroboard).
2.11
a. Connect a low-level signal (sine wave) from the function generator
to the input of the amplifier (as in 2.10).
b. Connect a dual-beam scope to monitor the input and output
waveforms and compare the input and output voltages.
2.12 Determine the voltage gain of the common emitter amplifier.
2.13
a. Observe the effect on voltage gain of varying the input frequency to
an amplifier.
b. Record voltage gain at each frequency.
Plot a frequency response curve for the amplifier from results obtained.
TOTAL MARKS 40 MARKS OBTAINED
%AGE RESULT (PASS/FAIL)
INSTRUCTOR/ASSESSOR
NAME
INSTRUCTOR/ASSESSOR
SIGNATURE

10. INSTRUCTIONS:
1. Read the questions properly.
2. Provide the answer on the same sheet, student can use separate sheet where
necessary.
Task 1
(A) Construct the Voltage Stabilizer Circuit from the Circuit Diagram below:
Figure 1 : Single Stage Amplifer
Set Actual Measure Actual Measure
Account
R5 Ve(V) Vbe(V) Vce(V) Rt(KΩ) Ib(µA) Ic(mA)
100%
60%
40%
Table 1: Record Table (Single Stage Amplifier)

11. (B) Basic Dynamics of Single-Stage Amplifier :
i. Use Function Generator with following configuration:
F=1 kHz
Amplitude=500mV
ii. Increase the input frequency gradually and fill in the table below for different values
of frequency.
Actual Test Actual Test Calculated
Vi(mV) Vo(mV) Av Av
Table 2 : Voltage Gain Calculation
(C) Effect of Load to Magnification:
Keep the Vi = 5mV unchanged, connect to load RL, change RC value and fill in the table
below:
Given Parameter Actual Measure Actual
Measure
Account
Estimated
Rc (R8) R-L (R9) Vi (mV) Vo (V) Av Av
2k 5k1
2k 2k2
5k1 5k1
5k1 2k2

12. COMPETENCY CHECKLIST
COMPETENCY LEVEL:
C = COMPETENT, NC= NOT COMPETENT, PC = PARTIALLY COMPETENT
NO TASK MAXIMUM
MARKS
MARKS
OBTAINED
COMPENTENCY
LEVEL
ASSESSOR
COMMENTS
1 1A - Circuit
Wiring
8
2 1A - Circuit
Operational
8
3 1A - Table 1
Values Recorded
8
4 1B – Table 2
Values recorded
8
5 1C – Table 3
Values Recorded
8
Guideline:
C = 60% and Above
PC = 40-59%
NC = 0-39%

13. 1. Read the questions properly.
2. Provide the answer on the same sheet, student can use separate sheet where
necessary.
PRACTICAL ASSIGNMENT – 03
NAME
CLASS
DATE
LEVEL Skill Proficiency Certificate
QUALIFICATION NO 3529-12
PRACTICAL
COMPETENCY
Electronic Applications
- Transistor Switch
- Light Operated Relay
TASK 2.14 Construct and test the operation of the following circuits:
a. Series Voltage Regulator
b. Integrated Voltage Regulator
TOTAL MARKS 50 MARKS OBTAINED
%AGE RESULT (PASS/FAIL)
INSTRUCTOR/ASSESSOR
NAME
INSTRUCTOR/ASSESSOR
SIGNATURE

14. Task A (i): Transistor Voltage Regulator
Figure 1 : Series Voltage Regulator
Static Measurement
Q 1: What is the role of R2 resistor and LED in the above circuit?

15. Q 2: Draw data table?
Q 3:
a. Adjust +5V ~ +12V power to 9V, connect to Vi terminal, then adjust the
potentiometer RP, Let the Vo = 6V and measure Q point of each transistor.
b. Draw Q point of each transistor from above circuit:

16. COMPETENCY CHECKLIST
COMPETENCY LEVEL:
C = COMPETENT, NC= NOT COMPETENT, PC = PARTIALLY COMPETENT
NO TASK
MAXIMUM
MARKS
MARKS
OBTAINED
COMPENTENCY
LEVEL
ASSESSOR
COMMENTS
Q 1
1
Components
Identified
5
2 Circuit Wired 5
3
Circuit
Operation
10
4
Table Data
Recorded
10
Q 2
1
Components
Identified
5
2 Circuit Wiring 5
3 Q point graphs 10
Guideline:
C = 60% and Above
PC = 40-59%
NC = 0-39%

17. 1. Read the questions properly.
2. Provide the answer on the same sheet, student can use separate sheet where
necessary.
PRACTICAL ASSIGNMENT – 04
NAME
CLASS
DATE
LEVEL Skill Proficiency Certificate
QUALIFICATION NO 3529-12
PRACTICAL
COMPETENCY
Electronic Applications
- Transistor Switch
- Light Operated Relay
TASK 2.17
a. Construct and test a simple timing circuit using a 555 timer
and other components.
b. Use an LED to indicate ON time.
2.18 Construct and test a timing circuit using a 555 timer which will
operate a 12V relay.
2.19
a. Construct an oscillator circuit using a 555 timer and other
components.
b. Observe and record the output waveform using an
oscilloscope.
TOTAL MARKS 50 MARKS OBTAINED
%AGE RESULT (PASS/FAIL)
INSTRUCTOR/ASSESSOR
NAME
INSTRUCTOR/ASSESSOR
SIGNATURE

18. TASK 1:
555 TIMER TEST WIRING DIAGRAM
Figure 1: 555 Timer Test Diagram
Layout:

19. Fig: Graph for TR and Q

20. COMPETENCY CHECKLIST
COMPETENCY LEVEL:
C = COMPETENT, NC= NOT COMPETENT, PC = PARTIALLY COMPETENT
NO TASK
MAXIMUM
MARKS
MARKS
OBTAINED
COMPENTENCY
LEVEL
ASSESSOR
COMMENTS
TASK 1
1
Components
Identified
5
2
Circuit
Assembled
5
3
Circuit
Operation
10
4
Layout is
drawn
10
TASK 2
1
U1(TR) and
U1(Q) Graph
Drawn
10
Guideline:
C = 60% and Above
PC = 40-59%
NC = 0-39%