Chartered Membership of the IET (CEng MIET) Knowledge and Understanding (UK-SPEC A) for Electrical, Electronic and IT Engineering Syllabus

Knowledge and Understanding (UK-SPEC A) for Electrical, Electronic and IT Engineering syllabus — full chapter and topic list

Expand any chapter to see its topics and sub-topics. This is the whole examinable outline for Knowledge and Understanding (UK-SPEC A) for Electrical, Electronic and IT Engineering in Chartered Membership of the IET (CEng MIET), not a summary of it.

1. 1

   Electrical Engineering Fundamentals

   4 topics

   • Circuit theory and network analysis
     • Kirchhoff's laws, Thevenin and Norton equivalents
     • AC steady-state analysis, phasors and complex impedance
     • Three-phase systems, power factor and reactive power
   • Electromagnetism and energy conversion
     • Magnetic circuits and transformers
     • Rotating machines: induction and synchronous
     • Power electronics and motor drives
   • Power systems and the grid
     • Generation, transmission and distribution
     • Fault analysis and protection coordination
     • Grid integration of renewables and storage
   • Control systems and stability
2. 2

   Electronic Engineering and Devices

   5 topics

   • Analogue electronics
     • Semiconductor devices and operating regions
     • Amplifier topologies and feedback
     • Filters, oscillators and signal conditioning
   • Digital electronics and logic design
     • Combinational and sequential logic
     • FPGAs and hardware description languages
   • Embedded systems and microcontrollers
     • Architecture, peripherals and interrupts
     • Real-time constraints and firmware design
   • Signal processing and instrumentation
   • Sensors, transducers and measurement uncertainty
3. 3

   Information Technology, Software and Communications

   5 topics

   • Computer systems and architecture
     • Processor, memory hierarchy and I/O
     • Operating systems and concurrency
   • Software engineering principles
     • Requirements, architecture and design patterns
     • Lifecycle models: agile, iterative and V-model
     • Verification, validation and testing
   • Networking and telecommunications
     • OSI and TCP/IP layered models
     • Wireless, optical and cellular transmission
   • Cyber security fundamentals
     • Confidentiality, integrity, availability
     • Secure-by-design and threat modelling
   • Data engineering, AI and machine learning concepts
4. 4

   Underpinning Mathematics, Science and Emerging Technology

   4 topics

   • Engineering mathematics in practice
     • Differential equations and transforms
     • Linear algebra and numerical methods
     • Probability, statistics and reliability theory
   • Materials and physics for engineering applications
   • Awareness of developments in the discipline
     • Electrification, net zero and energy transition
     • Internet of Things and connected systems
     • Quantum, photonics and advanced computing trends
   • Applying scientific principles to engineering problems

Knowledge and Understanding (UK-SPEC A) for Electrical, Electronic and IT Engineering flashcards for Chartered Membership of the IET (CEng MIET)

21 of 51 cards from the Knowledge and Understanding (UK-SPEC A) for Electrical, Electronic and IT Engineering deck — real questions with worked answers.

1. State Ohm's law and the formula for instantaneous power dissipated in a resistor.

   Ohm's law: $V = IR$. Power dissipated: $P = VI = I^{2}R = \dfrac{V^{2}}{R}$.

2. What is Kirchhoff's Current Law (KCL) and Kirchhoff's Voltage Law (KVL)?

   KCL: the algebraic sum of currents entering a node is zero, $\sum I = 0$ (charge conservation). KVL: the algebraic sum of voltages around any closed loop is zero, $\sum V = 0$ (energy conservation).

3. State Thevenin's theorem and how to find the Thevenin equivalent of a linear two-terminal network.

   Any linear two-terminal network can be replaced by a single voltage source $V_{th}$ in series with a resistance $R_{th}$. $V_{th}$ is the open-circuit voltage; $R_{th}$ is the resistance seen from the terminals with independent sources nulled (voltage sources shorted, current sources opened).

4. For a series RLC circuit, give the resonant angular frequency and the quality factor.

   Resonant frequency: $\omega_{0} = \dfrac{1}{\sqrt{LC}}$. Quality factor: $Q = \dfrac{\omega_{0}L}{R} = \dfrac{1}{R}\sqrt{\dfrac{L}{C}}$. Bandwidth $\Delta\omega = \dfrac{\omega_{0}}{Q}$.

5. Define the impedance of an inductor and a capacitor in the frequency domain.

   Inductor: $Z_{L} = j\omega L$. Capacitor: $Z_{C} = \dfrac{1}{j\omega C} = -\dfrac{j}{\omega C}$. Resistor: $Z_{R} = R$.

6. State the maximum power transfer theorem for a DC source with internal resistance.

   Maximum power is delivered to the load when the load resistance equals the source (Thevenin) resistance, $R_{L} = R_{th}$. At this point the efficiency is only $50\%$.

7. Write Faraday's law of electromagnetic induction and Lenz's law.

   Faraday: $\mathcal{E} = -N\dfrac{d\Phi}{dt}$, where $\Phi$ is magnetic flux and $N$ the number of turns. The minus sign is Lenz's law: the induced EMF opposes the change in flux that produces it.

8. State the force on a current-carrying conductor in a magnetic field and the Lorentz force on a charge.

   Conductor: $\vec{F} = I\,\vec{L}\times\vec{B}$, magnitude $F = BIL\sin\theta$. Charge: $\vec{F} = q(\vec{E} + \vec{v}\times\vec{B})$.

9. For an ideal transformer, relate voltages, currents and turns ratio.

   $\dfrac{V_{p}}{V_{s}} = \dfrac{N_{p}}{N_{s}} = \dfrac{I_{s}}{I_{p}}$. Power is conserved: $V_{p}I_{p} = V_{s}I_{s}$. Impedance reflects as $Z_{p} = \left(\dfrac{N_{p}}{N_{s}}\right)^{2} Z_{s}$.

10. Define energy stored in an inductor and in a capacitor.

    Inductor: $W = \dfrac{1}{2}LI^{2}$. Capacitor: $W = \dfrac{1}{2}CV^{2}$.

11. In three-phase systems, relate line and phase quantities for star (Y) and delta connections.

    Star: $V_{L} = \sqrt{3}\,V_{ph}$, $I_{L} = I_{ph}$. Delta: $V_{L} = V_{ph}$, $I_{L} = \sqrt{3}\,I_{ph}$. Three-phase power: $P = \sqrt{3}\,V_{L}I_{L}\cos\phi$.

12. Define real, reactive and apparent power, and the power factor.

    Apparent: $S = V_{rms}I_{rms}$ (VA). Real: $P = S\cos\phi$ (W). Reactive: $Q = S\sin\phi$ (VAR). Power factor: $\text{pf} = \cos\phi = \dfrac{P}{S}$. Relation: $S = \sqrt{P^{2}+Q^{2}}$.

13. Why is electrical power transmitted at high voltage over the grid?

    For a given power $P=VI$, raising $V$ lowers $I$, and line losses scale as $I^{2}R$. Halving current quarters the resistive loss, so high voltage minimizes transmission losses (and conductor size).

14. What is the standard UK grid frequency and nominal low-voltage supply, and name one method of grid reactive-power/voltage support.

    UK grid frequency is $50\ \text{Hz}$; nominal LV supply is $230\ \text{V}$ (single-phase RMS). Reactive support methods include capacitor banks, synchronous condensers, and FACTS devices (e.g. STATCOM).

15. State the transfer function form and define poles and zeros.

    $H(s) = \dfrac{N(s)}{D(s)}$. Zeros are roots of the numerator $N(s)=0$; poles are roots of the denominator $D(s)=0$. Pole locations determine stability and transient response.

16. What is the condition for BIBO stability of a continuous-time LTI system in terms of poles?

    All poles of the transfer function must lie strictly in the left half of the $s$-plane (i.e. $\operatorname{Re}(s)<0$). Any pole in the right half-plane, or repeated poles on the imaginary axis, gives instability.

17. Give the standard second-order system transfer function and define its parameters.

    $H(s) = \dfrac{\omega_{n}^{2}}{s^{2} + 2\zeta\omega_{n}s + \omega_{n}^{2}}$, where $\omega_{n}$ is the natural frequency and $\zeta$ the damping ratio. $\zeta<1$ underdamped, $\zeta=1$ critically damped, $\zeta>1$ overdamped.

18. State the gain margin and phase margin stability criterion from a Bode plot.

    Gain margin is the amount gain can increase before instability, measured at the phase-crossover frequency (where phase $=-180^{\circ}$). Phase margin is the extra phase lag at the gain-crossover frequency (where $|H|=0\ \text{dB}$). Positive margins indicate a stable closed loop.

19. Write the PID controller equation and state the effect of each term.

    $u(t) = K_{p}e(t) + K_{i}\!\int_{0}^{t} e(\tau)\,d\tau + K_{d}\dfrac{de(t)}{dt}$. P reduces error/speeds response, I eliminates steady-state error, D adds damping/anticipation (reduces overshoot).

20. What does the Nyquist stability criterion test?

    It relates closed-loop stability to encirclements of the point $-1+j0$ by the open-loop frequency response $G(j\omega)H(j\omega)$. For an open-loop-stable system, no encirclement of $-1$ means the closed loop is stable.

21. Give the ideal op-amp gain for inverting and non-inverting amplifier configurations.

    Inverting: $A_{v} = -\dfrac{R_{f}}{R_{in}}$. Non-inverting: $A_{v} = 1 + \dfrac{R_{f}}{R_{in}}$. Both assume ideal op-amp (infinite gain, infinite input impedance, virtual short).

See more Knowledge and Understanding (UK-SPEC A) for Electrical, Electronic and IT Engineering flashcards →

Planning Knowledge and Understanding (UK-SPEC A) for Electrical, Electronic and IT Engineering for Chartered Membership of the IET (CEng MIET)

Knowledge and Understanding (UK-SPEC A) for Electrical, Electronic and IT Engineering (Chartered Membership of the IET (CEng MIET)) FAQ