Interview Plan with Answers – ITI
Electrician
1. Introduction & Background
Q: Tell me about yourself.
A: I completed my ITI in Electrician trade from [Institute Name] in [Year]. I did my
apprenticeship at [Company Name], where I worked on wiring, motor connections, and
electrical maintenance.
Q: Why did you choose ITI Electrician trade?
A: I’ve always been interested in hands-on electrical work. ITI training provides practical
knowledge, and there is good demand for electricians in both domestic and industrial
sectors.
Q: Where did you do your practical training and what was your role?
A: I trained at [Company], where I was involved in installing wiring systems, repairing
motors, checking earthing systems, and helping in panel maintenance.
2. Technical Knowledge
Q: What is the difference between AC and DC?
A: AC (Alternating Current) changes direction periodically, while DC (Direct Current) flows
in one direction. AC is used in homes; DC is used in batteries.
Q: What are the types of electrical faults?
A: Short circuit, open circuit, earth fault, and overload are common types.
Q: Explain Ohm’s Law.
A: Ohm’s Law states that V = IR, where V is voltage, I is current, and R is resistance.
Q: What is the function of MCB and ELCB?
A: MCB protects against overcurrent and short circuit. ELCB protects against electric shock
by detecting earth leakage.
Q: Types of wiring systems used in buildings?
A: Cleat wiring, conduit wiring (surface and concealed), and casing-capping wiring.
Q: How do you test a newly installed wiring system?
A: By using a megger to check insulation resistance and a continuity tester to verify proper
connections.
Q: How do you calculate load for a household wiring circuit?
A: Add up the wattage of each appliance. Total load (in watts) = sum of all appliances. Divide
by voltage to get current.
Q: Name five electrician tools and their use.
A: Tester, Multimeter, Pliers, Screwdriver, Wire stripper.
Q: Standard color codes for wiring?
A: Live: Red/Brown, Neutral: Black/Blue, Earth: Green/Green-Yellow.
Q: Safety precautions before working on live circuits?
A: Switch off power, use insulated tools, wear PPE, and verify circuit is dead.
3. Practical Skills & Problem Solving
Q: If a fan is not working, what will you check?
A: Check power supply, inspect switch and capacitor, and check winding continuity.
Q: Single-phase motor not starting – steps?
A: Check power, capacitor, overload, and mechanical blockage.
Q: Can you wire a circuit with a switch and bulb?
A: Yes. Connect live to switch to bulb, neutral directly to bulb.
Q: Burning smell near DB – what will you do?
A: Switch off power, inspect for loose or burnt parts, and repair or replace.
4. Diagrams & Schematics
Q: Can you read a basic wiring diagram?
A: Yes, I can identify switches, sockets, lights, and connections.
Q: Common symbols in electrical diagrams?
A: Switch (S), Light (circle with cross), Socket (||), Earth (three horizontal lines).
5. Industrial Awareness
Q: What is a contactor?
A: Electrically controlled switch used in motor control.
Q: Worked with motor starters?
A: Yes. DOL starter for direct connection, Star-Delta to reduce starting current.
Q: What is a control panel?
A: Enclosure with components like MCBs, contactors, relays for machine control.
6. Attitude, Work Ethic, and Learning
Q: How do you work under pressure?
A: Stay calm, follow procedures, prioritize safety.
Q: Are you okay with shift work or heights?
A: Yes, worked in shifts and at height with safety gear.
Q: Are you willing to learn new things?
A: Yes, interested in automation and advanced electrical systems.
7. Closing
Q: Do you have any questions for me?
A: What kind of work will I be doing? Any training opportunities?
