Samsung E&A Electrical GET Interview Questions and Answers

Q1. Difference between MCB and MCCB
Ans. 
MCB is a miniature circuit breaker used for low voltage applications, while MCCB is a molded case circuit breaker used for higher currents and voltages.
• MCB is designed for low voltage applications, typically up to 1000V, while MCCB is designed for higher currents and voltages, typically up to 2500V.

• MCB is usually thermal-magnetic in operation, while MCCB can be thermal-magnetic or electronic trip units.

• MCB is compact i...read more
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Q2. Different types of Breaker
Ans. 
Different types of breakers include circuit breakers, fuse breakers, and ground fault circuit interrupters.
• Circuit breakers: Automatically switch off electrical circuits during abnormal conditions.

• Fuse breakers: Use a fuse to interrupt the circuit when overloaded.

• Ground fault circuit interrupters (GFCI): Detect imbalances in current flow to prevent electrical shocks.

• Miniature circuit breakers (MCB): Provide protection ...read more
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The test is very difficult you have to complete all 20 questions which consist GC , subject related

Q1. What is the wave trape?
Ans. 
A wave trap is a device used in electrical engineering to prevent unwanted signals or frequencies from entering a system.
• Wave traps are typically used in power systems to filter out specific frequencies that can cause interference.

• They are designed to allow only desired signals to pass through while blocking unwanted signals.

• Wave traps can be used in substations, transmission lines, and other electrical systems to impr...read more
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Q2. Which types of circuit breaker use in substation
Ans. 
Types of circuit breakers used in substations include air circuit breakers, oil circuit breakers, vacuum circuit breakers, and SF6 circuit breakers.
• Air circuit breakers are commonly used in low voltage applications.

• Oil circuit breakers are used in high voltage applications.

• Vacuum circuit breakers are compact and reliable, suitable for medium voltage applications.

• SF6 circuit breakers are used in high voltage substations
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Global warming ,covid-19, current affairs

Q1. Good knowledge in electrical
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Q2. Power system information and automation
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Q1. Earthing design
Ans. Explain Earthing design using excel or any earthing design software
Answered by B.Mohammed Amjad
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Q2. Cable Sizing calculation
Ans. Explain step by step procedure of Cable Sizing
Answered by B.Mohammed Amjad
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Q3. How to handle designers in tough time
Ans. 
Communicate openly, provide support, set clear expectations, offer solutions
• Communicate openly with designers to understand their challenges and concerns

• Provide support and resources to help designers overcome tough times

• Set clear expectations and goals to keep designers focused and motivated

• Offer solutions and brainstorm ideas together to find the best way forward
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Q4. Explain your individual contribution to the project
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Q1. Why do you want to do job?
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Q2. Why have you joined Electronics?
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Q3. What is Ohm's law?
Ans. 
Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points.
• Ohm's law is represented by the equation I = V/R, where I is the current, V is the voltage, and R is the resistance.

• It is named after Georg Simon Ohm, a German physicist who first formulated this law.

• This law is applicable to all types of circuits, including DC and AC circuits.

• It is use...read more
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Q1. Testing and commissioning related
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Q2. Work place Safety
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Q1. Circuit breakers & Switchgears
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Q2. What's the Loto system
Ans. 
The Loto system stands for Lockout/Tagout, a safety procedure used to ensure that dangerous machines are properly shut off and not started up again during maintenance or servicing.
• Loto system involves locking the energy-isolating devices with individual lockout devices to prevent the machine from being turned on

• Tagout involves placing a tag on the locked device to indicate that it should not be operated

• Employees workin...read more
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Q1. How much salary expectations
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Q1. Self introduction & previous company experience
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