100+ Free NAVTTC Auto Electrician Practice Questions

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NAVTTC Trade Test — Auto Mechanic / Motor Vehicle Mechanic (Pakistan)

Practice Questions100 questions

2026 Statistics

Key Facts: NAVTTC Auto Electrician Exam

30 mins

Theory Exam Duration

NAVTTC / Takamol SVP

90 mins

Practical Exam Duration

NAVTTC / Takamol SVP

50%

Passing Mark

NAVTTC / Takamol SVP

USD $50

Test Fee

Takamol SVP Portal

5 Years

Certificate Validity

SVP Certification

Bright Yellow

Airbag Wiring Color

Automotive Standard

The NAVTTC Auto Electrician trade test requires a 30-minute computer-based theory exam and a 90-minute practical workshop test. It costs USD $50 and covers basic circuits, starting/charging, ignition, lighting, EFI systems, and workshop safety.

Sample NAVTTC Auto Electrician Practice Questions

Try these sample questions to test your NAVTTC Auto Electrician 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 happens to the current in a circuit if the resistance is doubled while the voltage remains constant?

A.The current is doubled

B.The current is halved

C.The current remains the same

D.The current increases four times

Explanation: Ohm's Law states that Current (I) = Voltage (V) / Resistance (R). Since current is inversely proportional to resistance, doubling the resistance while keeping the voltage constant will cut the current in half. This is a fundamental concept in troubleshooting automotive wiring where high resistance causes low current.

2Which of the following multimeter settings must be used to test the continuity of a fuse?

A.DC Voltage (V)

B.AC Voltage (V~)

C.Resistance (Ohms/Continuity Beep)

D.Amperage (A)

Explanation: To test a fuse for continuity, the multimeter should be set to the resistance (Ohms) setting or the continuity buzzer mode. A good fuse will show close to zero resistance and sound a beep, indicating a complete circuit path. An open/blown fuse will show infinite resistance (OL) and no beep, indicating a broken circuit.

3What is the purpose of a fuse in an automotive electrical circuit?

A.To increase the voltage delivered to the load

B.To protect the circuit components and wiring from excessive current

C.To regulate the current flow to a constant value

D.To act as a switch to turn the circuit on and off

Explanation: Fuses are safety devices designed to protect wiring and electrical components from damage caused by excessive current (overload or short circuit). The fuse contains a thin metal strip that melts (blows) when current exceeds its rating, opening the circuit and stopping current flow before the wiring overheats and catches fire.

4A voltmeter shows 12.6V at the battery terminals but only 10.2V at the headlight connector when the switch is ON. What does this indicate?

A.The headlight bulb is defective

B.There is excessive voltage drop in the headlight circuit wiring or switch

C.The battery is completely discharged

D.The headlight circuit has a short to ground

Explanation: A difference in voltage between the battery source and the load while the circuit is active indicates excessive voltage drop. In this case, 2.4V is being lost across high resistance in the wiring, connectors, switch, or ground path. This high resistance prevents the headlight from receiving full power, causing it to appear dim.

5When measuring current flow in a circuit using a digital multimeter, how must the meter be connected?

A.In parallel across the load with the power on

B.In series with the circuit path with the power on

C.In parallel across the battery terminals with the power off

D.In series with the ground wire with the battery disconnected

Explanation: To measure current (amperes), the multimeter must be connected in series with the circuit so that all current flows through the meter. The circuit must be opened and the meter leads inserted to bridge the gap. Additionally, the circuit must be powered to measure active current draw.

6According to wire gauge standards, which of the following statements is correct regarding wire sizing?

A.An 8 AWG wire is thinner and carries less current than an 18 AWG wire

B.An 8 AWG wire is thicker and carries more current than an 18 AWG wire

C.Both wires have the same thickness, but the insulation material is different

D.AWG number represents the length of the wire in meters

Explanation: In the American Wire Gauge (AWG) system, the wire size number is inversely proportional to the actual diameter of the conductor. Therefore, a smaller gauge number (like 8 AWG) represents a much thicker wire with a higher current-carrying capacity than a larger gauge number (like 18 AWG). Thick wires are used for high-current applications like starter motors and alternators.

7What is the function of a standard 5-pin automotive relay in a high-current circuit?

A.To convert direct current (DC) into alternating current (AC)

B.To use a low-current switch to control a high-current device

C.To store electrical charge and release it during starting

D.To protect the circuit from short circuits

Explanation: An automotive relay is an electromagnetic switch. It uses a low-current control circuit (energizing a small electromagnet coil) to close high-current contacts, allowing a light-duty dashboard switch to safely control a high-power device like a radiator fan, horn, or fuel pump. This prevents heavy wiring from being routed into the passenger cabin.

8Which type of fault is indicated if a fuse blows immediately every time the corresponding switch is turned ON?

A.An open circuit after the switch

B.A short circuit to ground before the load

C.High resistance in the load component

D.A bad ground connection for the load

Explanation: If a fuse blows immediately upon closing the switch, it indicates a short circuit to ground. This means the power wire after the switch is touching the metal vehicle chassis before reaching the load, creating a path of zero resistance. According to Ohm's Law, zero resistance causes current to spike instantly, melting the fuse.

9An auto electrician measures 0.5 ohms of resistance across a wire splice. What does this indicate about the connection?

A.The splice is in perfect condition and requires no action

B.The splice is acceptable for starter motor wiring but not for sensor circuits

C.The splice has high contact resistance that could disrupt sensitive sensor signals

D.The splice is shorted to the body chassis

Explanation: While 0.5 ohms seems small, it represents a significant contact resistance for low-voltage sensor circuits (which operate on a 5V reference). Such resistance will drop voltage and distort sensor readings, leading to poor engine performance. Good wiring splices should have virtually 0.0 ohms of resistance.

10In a 12V automotive circuit, a 60-watt bulb is connected. Using Ohm's Law and Watt's Law, what is the expected current draw and resistance of this bulb when operating?

A.5 Amps and 2.4 Ohms

B.12 Amps and 1.2 Ohms

C.0.2 Amps and 60 Ohms

D.5 Amps and 12 Ohms

Explanation: According to Watt's Law, Power (P) = Voltage (V) * Current (I). Rearranging this gives Current (I) = Power (P) / Voltage (V) = 60W / 12V = 5 Amps. According to Ohm's Law, Resistance (R) = Voltage (V) / Current (I) = 12V / 5A = 2.4 Ohms. Knowing these values helps diagnose if a bulb is drawing the correct amount of current.

About the NAVTTC Auto Electrician Exam

The NAVTTC Auto Electrician trade test validates technical competence in automotive electrical systems. Aligned with the Takamol Skills Verification Program (SVP) for workers seeking international employment, the exam assesses understanding of electrical theory, vehicle wiring diagrams, batteries, charging and starting systems, ignition setups, body electronics, and Electronic Fuel Injection (EFI) diagnostics. The certification process requires passing a 30-minute computer-based theoretical exam followed by a 90-minute practical hands-on demonstration of troubleshooting and electrical system repairs in a workshop setting.

Assessment

20-30 multiple-choice theory questions and a hands-on practical workshop evaluation

Time Limit

30-minute theory exam, 90-minute practical exam

Passing Score

50% minimum passing score

Exam Fee

USD $50 (National Vocational and Technical Training Commission (NAVTTC) of Pakistan)

NAVTTC Auto Electrician Exam Content Outline

15%

Basic Electricity, Circuits & Wiring

Ohm's Law, voltage drop, wire gauges, relay circuits, fuses, and electrical multimeter measurements.

20%

Batteries & Charging Systems

Lead-acid battery chemistry, testing (load and hydrometer), alternators, rectifiers, and voltage regulators.

15%

Starting Systems

Starter motor operation, solenoids, overrunning clutches, ignition switches, and starting interlocks.

15%

Ignition Systems

Spark plugs, distributor-type, electronic, and coil-on-plug systems, along with ignition timing control.

10%

Lighting & Body Accessories

Headlights, turn signals, flashers, windshield wipers, horns, and power windows.

15%

EFI & Engine Management Systems

Sensors (MAF, MAP, O2, CMP, CKP, ECT), actuators (fuel injectors, idle control), and ECU operation.

10%

Workshop Safety & Professional Skills

Safe battery handling, personal protective equipment (PPE), fire safety, and electrical hazards.

How to Pass the NAVTTC Auto Electrician Exam

What You Need to Know

Passing score: 50% minimum passing score
Assessment: 20-30 multiple-choice theory questions and a hands-on practical workshop evaluation
Time limit: 30-minute theory exam, 90-minute practical exam
Exam fee: USD $50

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

NAVTTC Auto Electrician Study Tips from Top Performers

1Practice using a digital multimeter for voltage, resistance, and current measurements on real vehicle circuits.

2Understand the exact steps for performing a starter current draw test and alternator voltage drop tests.

3Know how to test lead-acid batteries using a hydrometer and a high-rate load tester.

4Review the color codes of automotive safety systems; remember yellow is universally used for SRS/airbag wires.

5Master Ohm's Law and simple calculations (V=I*R and P=V*I) to determine correct fuse ratings and wire sizes.

6Study sensor diagnostics, especially NTC engine temperature sensors, digital Hall-effect rotation sensors, and O2 sensors.

7Always prioritize shop safety: wear PPE, use insulated tools around batteries, and disconnect the ground terminal first.

Frequently Asked Questions

What is the NAVTTC Auto Electrician trade test?

It is a standardized vocational competency assessment in Pakistan administered by NAVTTC. It is also the designated pathway for the Takamol Skills Verification Program (SVP) for Pakistani auto electricians planning to work in Saudi Arabia.

How is the Auto Electrician test structured?

The test has two parts: a 30-minute computer-based theoretical exam containing multiple-choice questions, and a 90-minute practical workshop test where you must demonstrate troubleshooting and wiring repairs on a vehicle.

What is the passing score and how much does it cost?

The exam requires a minimum score of 50% to pass both components. The official fee for the Takamol SVP registration and trade test is USD $50, paid via the official portal.

Where can I take the NAVTTC trade test?

The test is conducted at NAVTTC-authorized assessment centers and TEVTA vocational labs across major cities in Pakistan (e.g. Islamabad, Lahore, Karachi, Peshawar).

How long is the Auto Electrician certificate valid?

Once you successfully pass both the theory and practical parts, the certificate is issued electronically and is valid for a period of 5 years, after which recertification is required.