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100+ Free Bac F2 Bénin Practice Questions

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2026 Statistics

Key Facts: Bac F2 Bénin Exam

Coeff 4 / 8h

Réalisation de Maquette T.P., the longest single practical exam

OBB — Liste des épreuves à l'examen du Baccalauréat

9 / 22 Coeffs

Total practical laboratory coefficients in the first group (~41%)

OBB — Liste des épreuves à l'examen du Baccalauréat

28 / 560 pts

Total coefficients and points across both groups including orals

OBB — Liste des épreuves à l'examen du Baccalauréat

85.11%

Série F2 admissibility rate, June 2026 national session

Office du Baccalauréat du Bénin, results proclamation 8 July 2026

10.00 / 20

Passing weighted average threshold (9.00–9.99 qualifies for second group)

Décret fixing the Baccalauréat rules, Articles 17–18

Free 100-question English MCQ study adaptation for the Benin Baccalauréat Série F2 (Électronique). Delivered officially in French by the OBB, Série F2 comprises three major practical lab exams (Réalisation de Maquette coeff 4, Mesures et Essais coeff 3, Informatique T.P. coeff 2), written papers (Étude d'un Système Technique coeff 4, Mathématiques coeff 3, Sciences Physiques coeff 2, Construction Mécanique coeff 2, Français coeff 2), and second-group orals (5 coefficients). Pass mark is a weighted 10.00/20.

Sample Bac F2 Bénin Practice Questions

Try these sample questions to test your Bac F2 Bénin exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1In an ideal operational amplifier circuit configured as an inverting amplifier with the non-inverting terminal (+) connected to ground (0 V), what is the potential at the inverting terminal (−) when operating in the linear regime?
A.0 V (Virtual Ground)
B.+Vcc (Positive supply rail)
C.-Vee (Negative supply rail)
D.Half of the input voltage
Explanation: Because an ideal operational amplifier possesses infinite open-loop voltage gain (Aod → ∞) and operates with negative feedback in the linear regime, the differential input voltage ε = V+ − V− equals 0 V. Since the non-inverting terminal V+ is tied directly to 0 V ground, the inverting terminal V− is maintained at 0 V, forming a virtual ground (masse virtuelle). No current enters the inverting terminal due to infinite input impedance.
2What is the closed-loop voltage gain Av = Vout / Vin for an ideal inverting operational amplifier circuit with input resistor R1 and feedback resistor Rf?
A.Av = 1 + (Rf / R1)
B.Av = - (Rf / R1)
C.Av = - (R1 / Rf)
D.Av = Rf / (R1 + Rf)
Explanation: Applying Kirchhoff's current law at the virtual ground inverting node gives (Vin − 0)/R1 + (Vout − 0)/Rf = 0. Solving for Vout yields Vout = −(Rf / R1) * Vin, which means the voltage gain is Av = −(Rf / R1). The negative sign indicates a 180-degree phase shift between input and output.
3A non-inverting operational amplifier has an input resistor R1 = 10 kΩ and a feedback resistor Rf = 90 kΩ. If a DC input voltage of Vin = +0.5 V is applied, what is the output voltage Vout?
A.+4.5 V
B.-4.5 V
C.+5.0 V
D.+0.5 V
Explanation: The voltage gain of a non-inverting operational amplifier is Av = 1 + (Rf / R1). Substituting the resistor values gives Av = 1 + (90 kΩ / 10 kΩ) = 1 + 9 = 10. The output voltage is Vout = Av * Vin = 10 * 0.5 V = +5.0 V.
4A first-order active low-pass filter uses a resistor R = 10 kΩ and a capacitor C = 15.9 nF in its feedback network. What is the -3 dB cutoff frequency fc of this filter?
A.100 Hz
B.10 kHz
C.15.9 kHz
D.1.0 kHz
Explanation: The cutoff frequency for a first-order low-pass RC network is given by fc = 1 / (2 * π * R * C). Substituting the values: fc = 1 / (2 * 3.14159 * 10,000 Ω * 15.9 * 10^-9 F) = 1 / (9.99 * 10^-4) ≈ 1000 Hz = 1.0 kHz.
5What is the high-frequency asymptotic roll-off rate (slope) of the Bode gain magnitude plot for a second-order Sallen-Key low-pass active filter?
A.-12 dB/octave (-40 dB/decade)
B.-6 dB/octave (-20 dB/decade)
C.-18 dB/octave (-60 dB/decade)
D.-24 dB/octave (-80 dB/decade)
Explanation: Each pole in an electronic filter contributes an asymptotic attenuation roll-off of -20 dB/decade (equivalent to -6 dB/octave) in the stopband. A second-order Sallen-Key filter has two conjugate complex poles in its transfer function denominator, producing a total roll-off rate of -40 dB/decade (-12 dB/octave).
6In what operational region must a Zener diode be biased to function properly as a DC voltage reference/regulator?
A.Forward conduction region (Vd ≈ +0.7 V)
B.Reverse breakdown (Zener avalanche) region
C.Reverse leakage cutoff region below Vz
D.Saturation region with negative resistance
Explanation: A Zener diode is specially designed to operate in its reverse breakdown region (zone de claquage inverse). In this region, once the reverse voltage reaches Vz, the voltage across the diode remains virtually constant over a wide range of reverse currents Iz, providing effective voltage stabilization.
7For an NPN bipolar junction transistor (BJT) in a common-emitter amplifier circuit with supply Vcc, collector resistor Rc, and emitter resistor Re, what is the slope of the DC load line on the Ic vs Vce output characteristics?
A.- (Rc + Re)
B.- 1 / Rc
C.- 1 / (Rc + Re)
D.+ (Rc / Re)
Explanation: Applying Kirchhoff's voltage law around the collector-emitter loop yields Vcc = Vce + Ic * Rc + Ie * Re. Approximating Ie ≈ Ic, this becomes Vcc = Vce + Ic * (Rc + Re), which rearranges to Ic = −[1 / (Rc + Re)] * Vce + Vcc / (Rc + Re). Plotting Ic versus Vce gives a straight line with a negative slope of −1 / (Rc + Re).
8What is the primary condition required for an N-channel enhancement-mode MOSFET (NMOS) to conduct drain current Id?
A.Vgs must be zero and Vds must be negative
B.Vgs must be negative and less than -Vth
C.The gate terminal must draw a continuous DC current of at least 10 mA
D.Vgs must be positive and strictly greater than the threshold voltage Vth (Vgs > Vth)
Explanation: An enhancement-mode NMOS transistor is normally off when Vgs = 0 because no conductive inversion channel exists between drain and source. Applying a positive gate-to-source voltage greater than the threshold voltage (Vgs > Vth) attracts electrons beneath the gate oxide, forming an n-type conductive channel that allows drain current Id to flow.
9An inverting Schmitt trigger comparator uses an operational amplifier with saturation voltages ±Vsat = ±12 V, feedback resistor R2 = 100 kΩ from output to non-inverting terminal, and ground resistor R1 = 20 kΩ. What is the hysteresis voltage width (ΔVH = Vth+ − Vth−)?
A.4.0 V
B.2.0 V
C.2.4 V
D.4.8 V
Explanation: The upper and lower threshold voltages are determined by the voltage divider formed by R1 and R2 connected to the saturated output: Vth+ = +Vsat * R1 / (R1 + R2) = +12 V * 20 kΩ / (20 kΩ + 100 kΩ) = +12 * (20/120) = +2.0 V. The lower threshold is Vth− = −Vsat * R1 / (R1 + R2) = −2.0 V. The total hysteresis width is ΔVH = Vth+ − Vth− = +2.0 V − (−2.0 V) = 4.0 V.
10When an AC sinusoidal mains voltage of frequency f = 50 Hz is applied to a full-wave bridge rectifier (Pont de Graetz), what is the fundamental ripple frequency of the rectified unfiltered output voltage?
A.50 Hz
B.100 Hz
C.25 Hz
D.200 Hz
Explanation: A full-wave bridge rectifier conducts on both the positive and negative half-cycles of the input sine wave, inverting the negative half-cycles so that two output pulses occur for every one complete input cycle. Therefore, the output ripple frequency is double the input frequency: f_ripple = 2 * f_in = 2 * 50 Hz = 100 Hz.

About the Bac F2 Bénin Exam

The Baccalauréat Série F2 (Électronique) is Benin's technical secondary school leaving diploma in electronics engineering, organized by the Office du Baccalauréat du Bénin (OBB) under the Ministère de l'Enseignement Supérieur et de la Recherche Scientifique (MESRS). Taught at technical lycées such as the Lycée Technique Coulibaly in Cotonou and other regional technical centers, Série F2 focuses on analog and digital electronic system design, laboratory measurement and testing, printed circuit board (PCB) prototyping and soldering, embedded microcontrollers, and electronic packaging. The official examination is administered in French and heavily emphasizes practical laboratory competencies (carrying 9 out of 22 first-group coefficients), alongside demanding written examinations and a comprehensive second-group oral. This practice bank provides 100 English-language multiple-choice questions covering technical system analysis, lab instrumentation, prototyping, embedded programming, mechanical packaging, physics, mathematics, and oral subjects. Because substantial weight rests on hands-on workshop performance, these MCQs reinforce core engineering concepts, diagnostic logic, formulas, and safety protocols but cannot certify manual bench skills.

Assessment

First group, per the OBB coefficient table for Série F2: three compulsory practical papers (Travaux Pratiques) — Réalisation de Maquette T.P. (coeff 4, 8h), Mesures et Essais de Laboratoire T.P. (coeff 3, 4h), Informatique T.P. (coeff 2, 3h) — plus written papers in Étude d'un Système Technique (coeff 4, 4h), Mathématiques (coeff 3, 4h), Sciences Physiques (coeff 2, 3h), Construction Mécanique (coeff 2, 4h), and Français (coeff 2, 3h) — Total 1 = 22 coefficients (440 points), plus EPS (coeff 1) for 23 coefficients / 460 points. Second group oral: Philosophie (coeff 1), Anglais (coeff 1), Schémas et Technologie (coeff 1), Création et Gestion d'Entreprise (coeff 1), Législation du travail (coeff 1) — Total 2 = 5 coefficients / 100 points, open to candidates averaging 9.00 to 9.99/20, for a 28-coefficient / 560-point final total. The 2026 session sat in June/July 2026 (admissibility rate 85.11%). This bank is an English-language MCQ study adaptation; it cannot substitute for the hands-on laboratory practicals or the oral.

Time Limit

18 hours of written papers plus 15 hours of practical laboratory exams (T.P.), sat across the national session

Passing Score

10/20 (Weighted average >= 10.00 / 20; 9.00–9.99 qualifies for the second-group oral)

Exam Fee

5,000 XOF registration for Beninese candidates; 35,000 XOF for foreign candidates; plus 1,000 XOF for the relevé de notes and 2,000 XOF photo-scanning/form-printing for candidats libres (OBB note de service, 20 November 2025) (Office du Baccalauréat du Bénin (OBB) — Ministère de l'Enseignement Supérieur et de la Recherche Scientifique)

Bac F2 Bénin Exam Content Outline

Coeff 4, 4h written (~17% of first-group coefficients)

Étude d'un Système Technique

Analog and digital electronic circuit design and analysis: operational amplifiers, active/passive filters, BJT/MOSFET switching and amplification, power supply regulation, SMPS, and logic/conversion systems.

Coeff 4, 8h practical (~17%)

Réalisation de Maquette T.P.

Hands-on prototype construction, PCB layout guidelines, through-hole and surface-mount soldering, component assembly, bring-up methodology, and hardware fault diagnosis.

Coeff 3, 4h practical (~13%)

Mesures et Essais de Laboratoire T.P.

Laboratory instrumentation and test procedures: oscilloscope triggering and probe compensation, True-RMS multimeters, signal generators, frequency/transient response measurements, and electrical safety.

Coeff 3, 4h written (~13%)

Mathématiques

Complex numbers in AC circuit analysis, transfer functions, Laplace transforms, 1st and 2nd order differential equations, and calculus.

Coeff 2, 3h practical (~9%)

Informatique T.P.

Microcontroller architecture, memory organization, embedded C/assembly programming, bitwise I/O manipulation, timers, PWM, interrupts, and serial communication protocols (UART, I2C, SPI).

Coeff 2, 3h written (~9%)

Sciences Physiques

Electromagnetism, electromagnetic wave propagation, transmission lines, characteristic impedance, reflection coefficients, and AC circuit dynamics.

Coeff 2, 4h written (~9%)

Construction Mécanique

Electronic packaging and enclosures, IP ratings, thermal management (heat sinking, thermal resistance calculations), industrial cabling, connectors, and PCB mounting.

Coeff 2, 3h written (~9%)

Français

Technical text comprehension, document synthesis, structured argumentation, and written communication.

Coeff 1 (~4%)

Éducation Physique et Sportive (EPS)

Practical athletic performance and physical education evaluation.

Coeff 5 total (oral)

Second-Group Oral Subjects

Oral examinations for admissible candidates (9.00–9.99/20): electronic symbology/datasheet interpretation, technical English, technological ethics, enterprise management, and Beninese labor law.

How to Pass the Bac F2 Bénin Exam

What You Need to Know

  • Passing score: 10/20 (Weighted average >= 10.00 / 20; 9.00–9.99 qualifies for the second-group oral)
  • Assessment: First group, per the OBB coefficient table for Série F2: three compulsory practical papers (Travaux Pratiques) — Réalisation de Maquette T.P. (coeff 4, 8h), Mesures et Essais de Laboratoire T.P. (coeff 3, 4h), Informatique T.P. (coeff 2, 3h) — plus written papers in Étude d'un Système Technique (coeff 4, 4h), Mathématiques (coeff 3, 4h), Sciences Physiques (coeff 2, 3h), Construction Mécanique (coeff 2, 4h), and Français (coeff 2, 3h) — Total 1 = 22 coefficients (440 points), plus EPS (coeff 1) for 23 coefficients / 460 points. Second group oral: Philosophie (coeff 1), Anglais (coeff 1), Schémas et Technologie (coeff 1), Création et Gestion d'Entreprise (coeff 1), Législation du travail (coeff 1) — Total 2 = 5 coefficients / 100 points, open to candidates averaging 9.00 to 9.99/20, for a 28-coefficient / 560-point final total. The 2026 session sat in June/July 2026 (admissibility rate 85.11%). This bank is an English-language MCQ study adaptation; it cannot substitute for the hands-on laboratory practicals or the oral.
  • Time limit: 18 hours of written papers plus 15 hours of practical laboratory exams (T.P.), sat across the national session
  • Exam fee: 5,000 XOF registration for Beninese candidates; 35,000 XOF for foreign candidates; plus 1,000 XOF for the relevé de notes and 2,000 XOF photo-scanning/form-printing for candidats libres (OBB note de service, 20 November 2025)

Keys to Passing

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

Bac F2 Bénin Study Tips from Top Performers

1Master core electronic calculations for Étude d'un Système Technique (coeff 4): operational amplifier gain, filter cutoff frequencies fc = 1/(2*pi*R*C), BJT load lines, Zener regulation, and ripple voltage calculations.
2Understand the step-by-step methodology of Réalisation de Maquette (coeff 4): PCB visual inspection, unpowered short-circuit checks, power supply rail verification before inserting ICs, and systematic subsystem testing.
3Thoroughly review laboratory instrument operating principles for Mesures et Essais (coeff 3): probe 10X attenuation and AC/DC coupling on oscilloscopes, True-RMS multimeter bandwidth limits, and differential probes.
4Practice embedded C bitwise operations (AND masking, OR setting, XOR toggling) and microcontroller timer/PWM/interrupt register configurations for Informatique T.P. (coeff 2).
5Review thermal resistance formulas (Rth_ja = Rth_jc + Rth_ch + Rth_ha) and IP enclosure ratings for Construction Mécanique (coeff 2).

Frequently Asked Questions

What is the focus of the Baccalauréat Série F2 in Benin?

Série F2 (Électronique) is the specialized electronics engineering stream within Benin's technical secondary education. It trains students in analog and digital electronics, microprocessor systems, laboratory measurement, and electronic prototyping, preparing graduates for university engineering programs (such as EPAC at Université d'Abomey-Calavi) or advanced vocational diplomas (BTS/DUT).

Is the official Benin Baccalauréat Série F2 multiple choice?

No. The official examination organized by the Office du Baccalauréat du Bénin (OBB) is conducted in French and consists of comprehensive written examinations, 15 hours of hands-on practical laboratory tests (Travaux Pratiques), and an oral examination for borderline candidates. This practice bank is an English-language MCQ study adaptation designed for self-assessment and conceptual mastery.

Why does practical work carry so much weight in Série F2?

In Série F2, the three practical papers — Réalisation de Maquette T.P. (coeff 4, 8h), Mesures et Essais de Laboratoire T.P. (coeff 3, 4h), and Informatique T.P. (coeff 2, 3h) — account for 9 out of the 22 first-group academic coefficients (over 40%). Practical mastery in soldering, circuit assembly, oscilloscopy, and embedded firmware bring-up is central to passing.

What is the passing score and grading system for Série F2 in Benin?

The examination is graded on a 0–20 scale with subject coefficients. A candidate with a weighted average of at least 10.00/20 in the first group is declared admitted (admis). Candidates scoring between 9.00 and 9.99/20 are declared admissible to the second-group oral examinations. Scoring below 9.00/20 results in failure (ajourné).

What are the second-group oral subjects in Série F2?

The second group consists of five oral examinations carrying coefficient 1 each (5 coefficients / 100 points total): Philosophie, Anglais, Schémas et Technologie, Création et Gestion d'Entreprise, and Législation du travail.