Afcons Infrastructure Electrician Technician Interview Questions and Answers

Q1. Electrical mentenanc work experience
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Q2. ElCB full form and MCB full form
Ans. 
ELCB stands for Earth Leakage Circuit Breaker and MCB stands for Miniature Circuit Breaker.
• ELCB is a safety device used to protect against electrical shock caused by earth faults.

• MCB is a type of circuit breaker that automatically switches off electrical circuits during abnormal conditions.

• ELCB detects current leakage to earth and disconnects the circuit, while MCB protects against overloads and short circuits.
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Q3. Earth leakeg circuit breaker and menutur current breaker
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Q4. ElCB sefty protection
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Q5. MCB over load protection
Ans. 
MCB (Miniature Circuit Breaker) provides overload protection by automatically switching off the circuit when current exceeds the rated capacity.
• MCB trips when current exceeds its rated capacity to prevent overheating and potential fire hazards.

• Overload protection is essential to protect electrical appliances and wiring from damage.

• Examples of MCB overload protection include tripping when too many devices are connected ...read more
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Q6. ElCB earth leakage protection
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Q1. Electrician maintenance
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Q2. Superviser electrician
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To decide how to work in safety in electrical equipment

Q1. Which safety hazard electrical protection
Ans. 
One safety hazard in electrical protection is electric shock.
• Electric shock can occur when coming into contact with live electrical parts.

• Proper grounding and insulation of electrical equipment is essential to prevent electric shock.

• Regular maintenance and inspections of electrical systems can help identify potential hazards.

• Using personal protective equipment such as insulated gloves and safety goggles can reduce the ...read more
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Q1. What about wiring and boards?
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Wiring and boards are essential components of electrical systems.
• Wiring refers to the physical connections between electrical components.

• Boards are used to organize and control the flow of electricity.

• Proper wiring and board design are crucial for safety and efficiency.

• Examples of boards include circuit breaker panels and control boards for industrial machinery.
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Q1. What programming languages are you most familiar with?
Ans. 
I am most familiar with programming languages such as Python, Java, and C++.
• Python

• Java

• C++
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Q2. What is your field of expertise and what would you like to learn more about?
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Q1. About swich yard
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Q2. About vfd panal and star delta motars
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Q3. About Earthing and electrod
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Q4. About Earthing Matt by G.I. flats
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Q5. About construction power
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Q6. About baching plant
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Q1. When you working. How many year experience
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Q2. Expectation salary. Did you what work in previous company.
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Q1. Electrician 3 phase &single phase different
Ans. 
Single phase has one live wire and one neutral wire, while three phase has three live wires and one neutral wire.
• Single phase is used for smaller loads like household appliances.

• Three phase is used for larger loads like industrial machinery.

• Single phase has a lower power output compared to three phase.

• Three phase is more efficient and cost-effective for high power applications.

• Single phase has a voltage of 230V while t...read more
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Q2. Mechanical 2 hp motor how kw need
Ans. 
The kW required for a 2 hp motor depends on the efficiency of the motor.
• The efficiency of the motor needs to be known to calculate the kW required.

• The formula to calculate kW is kW = hp x 0.746 / efficiency.

• Assuming an efficiency of 80%, the kW required for a 2 hp motor would be 1.49 kW.
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Electrician ITI NCVT college

Q1. All about of electrical safety and work
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Q2. All work of electrical basic like how to test mager, maltimeter,elcb tester,clamp meter,also earthing tester
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