100+ Free BTEB SSC Vocational Practice Questions

Prepare for the Bangladesh Technical Education Board Secondary School Certificate (SSC) Vocational Examination exam with instant access — no signup required.

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Key Facts: BTEB SSC Vocational Exam

Exam Body

Education Level

Passing Score

Grading Scale

Core Content

Higher Study Pathway

Pass the BTEB SSC Vocational examination by mastering core electrical, mechanical, and civil workshop practices, workshop safety and precision measurement, applied physics/chemistry/math principles, and orthographic technical drawing standards.

Sample BTEB SSC Vocational Practice Questions

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

1According to Ohm's Law, what is the electric current (I) flowing through a heating element with a resistance of 44 ohms when connected to a 220 V AC supply?

A.2.5 A

B.5.0 A

C.10.0 A

D.9,680 A

Explanation: According to Ohm's Law, current is given by I = V / R. Substituting the values: I = 220 V / 44 Ω = 5.0 A.

2A single-phase step-down transformer has 1,200 turns in the primary winding and 120 turns in the secondary winding. If the primary voltage is 240 V, what is the secondary output voltage?

A.2,400 V

B.120 V

C.24 V

D.12 V

Explanation: The transformer turn ratio equation is Vp / Vs = Np / Ns. Rearranging for secondary voltage: Vs = Vp * (Ns / Np) = 240 V * (120 / 1,200) = 240 * 0.1 = 24 V.

3What is the standard frequency of the single-phase alternating current (AC) domestic power supply distributed in Bangladesh by BPDB/DESCO?

A.50 Hz

B.60 Hz

C.100 Hz

D.0 Hz (Direct Current)

Explanation: The national electrical grid standard in Bangladesh operates at a frequency of 50 Hz (cycles per second) with a nominal voltage of 230V/240V for single-phase domestic supplies.

4What is the primary safety function of connecting equipment earthing (grounding) to the metallic frame of domestic and workshop appliances?

A.To increase the operational speed and electrical power of the appliance

B.To step down the incoming mains voltage from 220 V to 12 V

C.To convert alternating current (AC) into direct current (DC) for internal circuits

D.To provide a low-resistance return path to ground that triggers protective circuit breakers during insulation faults

Explanation: Equipment grounding bonds the conductive metallic casing to earth. In case of an insulation failure touching the casing, ground current flows rapidly through the low-resistance path, tripping the circuit breaker (MCB) or blowing the fuse to prevent lethal electric shock.

5Which electrical protective device is specifically engineered to detect minute earth leakage currents (e.g., 30 mA) and rapidly trip to protect humans from fatal electrocution?

A.Miniature Circuit Breaker (MCB)

B.Thermal Overload Relay (TOR)

C.Residual Current Circuit Breaker (RCCB / ELCB)

D.Cartridge Fuse

Explanation: A Residual Current Circuit Breaker (RCCB), also known as an Earth Leakage Circuit Breaker (ELCB) or RCD, monitors the balance between line and neutral currents. A difference as small as 30 mA trips the mechanism within milliseconds to prevent electrocution.

6In a residential staircase wiring circuit where a single lamp must be controlled independently from two different locations, which type of switches must be installed?

A.Single-Pole Single-Throw (SPST) switches

B.Two-Way (Single-Pole Double-Throw / SPDT) switches

C.Intermediate four-terminal cross switches

D.Push-to-on momentary bell switches

Explanation: Staircase lighting uses two two-way (SPDT) switches connected via two traveler wires. This allows a user to toggle the lamp on or off from either the top or bottom of the stairs independently.

7An electric immersion water heater rated at 1,500 W operates continuously for 4 hours. How much electrical energy does it consume in kilowatt-hours (kWh / units)?

A.6.0 kWh (units)

B.60.0 kWh (units)

C.0.6 kWh (units)

D.6,000 kWh (units)

Explanation: Energy consumed = (Power in Watts * Time in hours) / 1,000. Energy = (1,500 W * 4 h) / 1,000 = 6,000 Wh / 1,000 = 6.0 kWh (Board of Trade units).

8In surface PVC conduit electrical wiring installations, what is the maximum standard spacing permitted between conduit saddles (clips) along straight horizontal runs?

A.100 mm to 150 mm

B.2,000 mm to 2,500 mm

C.4,000 mm to 5,000 mm

D.600 mm to 900 mm (approx. 0.6 m to 0.9 m)

Explanation: According to standard electrical wiring codes (including BNBC and BTEB workshop practice), rigid PVC conduit saddles should be spaced approximately 600 mm to 900 mm apart to prevent sagging and physical dislodgement.

9Which major component of an engine center lathe is mounted on the right end of the bedways and is used to support long workpieces with a center or hold drill chucks?

A.Headstock

B.Carriage

C.Tailstock

D.Apron

Explanation: The tailstock is situated on the right side of the lathe bed. It slides along the guideways and can be clamped in position to hold a live/dead center for supporting long bars or hold drill bits and reamers in its Morse taper spindle.

10Which lathe machining operation produces a flat, perpendicular surface on the end face of a cylindrical workpiece?

A.Facing

B.Parallel turning

C.Knurling

D.Parting off

Explanation: Facing is the lathe operation where the cutting tool moves perpendicularly across the workpiece's rotational axis (from outside to center) to create a flat, smooth, square end face.

About the BTEB SSC Vocational Exam

The BTEB SSC (Vocational) examination is the national secondary school qualification in vocational and technical education in Bangladesh. It prepares students with theoretical knowledge, practical trade skills, applied sciences, engineering math, technical drawing, and occupational health and safety.

Assessment

Question count not published by the exam provider

Time Limit

2.5 to 3.0 Hours per paper

Passing Score

33%

Exam Fee

500 - 1,500 BDT (Board Fee) (Bangladesh Technical Education Board (BTEB), Agargaon, Dhaka)

BTEB SSC Vocational Exam Content Outline

30%

Trade Theory & Workshop Applications

Electrical trade concepts (Ohm's law, circuit wiring, transformers, grounding), mechanical fitting and machining (lathes, drilling, welding, files, hacksaws), civil construction (cement, concrete, brick bonding, plumbing), and basic electronics/computer hardware.

25%

Industrial Safety, PPE & Measurement

Occupational health and safety protocols, hazard identification, Personal Protective Equipment (PPE), fire extinguisher classes and usage, first aid and emergency response, precision measurement using Vernier calipers, micrometers, multimeters, dial indicators, and gauges.

25%

Applied Sciences & Mathematics

Applied physics (force, work, power, levers, pulleys, heat, pressure), applied chemistry (engineering metals, alloys, corrosion prevention, lubricants, cutting fluids), applied mathematics (area, volume, Pythagoras theorem, trigonometry, and workshop tolerances).

20%

Technical Drawing, ICT & Communication

Engineering drawing conventions, line types, orthographic projection (First vs Third angle), isometric and oblique sketching, dimensioning methods, basic computer components, word processing, spreadsheets, and technical English/communication.

How to Pass the BTEB SSC Vocational Exam

What You Need to Know

Passing score: 33%
Assessment: Question count not published by the exam provider
Time limit: 2.5 to 3.0 Hours per paper
Exam fee: 500 - 1,500 BDT (Board Fee)

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

BTEB SSC Vocational Study Tips from Top Performers

1Master Ohm's Law and transformer formulas: Practice calculating voltage, current, resistance, power, and turns ratio regularly.

2Understand precision measurement tools: Practice reading metric Vernier calipers (0.02 mm least count) and micrometer screw gauges (0.01 mm least count) including zero error adjustments.

3Memorize fire safety classes and PASS steps: Know the right extinguishing agent for Class A (solids), Class B (liquids), Class C (gases/electrical), and Class D (metals).

4Learn First Angle vs Third Angle projection rules: Remember that in 1st angle projection, the top view is drawn BELOW the front view, while in 3rd angle projection, it is drawn ABOVE.

5Practice applied math and geometric calculations: Review area and volume formulas for circles, cylinders, trapezoids, and 3-4-5 right triangle Pythagorean calculations.

Frequently Asked Questions

What is the BTEB SSC (Vocational) qualification in Bangladesh?

The Secondary School Certificate (Vocational) is a two-year secondary education qualification administered by the Bangladesh Technical Education Board (BTEB) for Class 9 and 10 students. It combines general secondary education with specialized trade theory and intensive practical workshop training.

What trades are offered under the BTEB SSC Vocational curriculum?

Popular trades include General Electrical Works, Machine Tools Operation (Machinist), Welding and Fabrication, Civil Construction, Plumbing and Pipe Fitting, Automotive / Farm Machinery, Refrigeration and Air Conditioning (RAC), Computer and Information Technology, Dress Making, and Electronics.

Can SSC Vocational graduates pursue higher studies like Diploma in Engineering?

Yes. SSC (Vocational) graduates are eligible for direct admission to 4-year Diploma in Engineering programs at government and private Polytechnic Institutes across Bangladesh, often with direct entry advantages into relevant technical departments.

How are students evaluated in the BTEB SSC Vocational examination?

Evaluation consists of continuous school-based assessments, practical workshop trade tests evaluated by external examiners, and final centralized written examinations covering Trade Theory, Applied Sciences, Mathematics, Technical Drawing, Bangla, and English.

What is the minimum passing requirement for each subject?

Candidates must secure at least 33% marks separately in both theoretical and practical components of each subject to achieve a passing grade (Grade D, minimum GPA 1.0 on a 5.0 scale).