Sterling & Wilson Electrical GET Interview Questions and Answers

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. What is the process of earthing?
Ans. 
Earthing is the process of connecting electrical equipment or installations to the earth to prevent electric shock and protect against electrical faults.
• Earthing involves creating a connection between the electrical system and the earth.

• It is done by burying a metal conductor, such as a copper rod, in the ground.

• The metal conductor is connected to the electrical system using a wire or cable.

• Earthing provides a path for...read more
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Q2. Which type of DGs used at your Site
Ans. 
The type of DGs used at our site are diesel generators.
• Diesel generators are commonly used as backup power sources in various industries.

• They are reliable and can provide a continuous power supply during electrical outages.

• DGs are often used in remote locations or areas with unreliable grid power.

• They require regular maintenance and fuel supply to operate efficiently.

• Examples of DGs used at our site include Cummins, Ca
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Q3. What is the difference between LT and HT line?
Ans. 
LT line refers to Low Tension line while HT line refers to High Tension line.
• LT line carries low voltage and is used for domestic and small-scale commercial purposes.

• HT line carries high voltage and is used for industrial and large-scale commercial purposes.

• LT line voltage is typically up to 440 volts, while HT line voltage is above 440 volts.

• LT lines are usually overhead lines, while HT lines can be both overhead and ...read more
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Q4. Which type of Circuit Breakers you used at Site?
Ans. 
We used different types of circuit breakers at the site depending on the specific requirements.
• We used air circuit breakers (ACBs) for low voltage applications.

• For medium voltage applications, we used vacuum circuit breakers (VCBs) or oil circuit breakers (OCBs).

• In high voltage installations, we used sulfur hexafluoride (SF6) circuit breakers.

• For specialized applications like generator protection, we used differential ...read more
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Q5. How big transformers you used at site
Ans. 
The size of transformers used at the site varied depending on the specific requirements of the project.
• Transformers used at the site were of different sizes based on the power demand of the electrical system.

• For smaller projects, transformers with a capacity of around 100 kVA were used.

• For medium-sized projects, transformers with a capacity ranging from 250 kVA to 500 kVA were used.

• For larger projects, transformers wit...read more
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Q6. Which type of Batching Plant you used at Site
Ans. 
We used a stationary type batching plant at the site.
• We used a stationary type batching plant for our construction project.

• The stationary batching plant had a higher production capacity compared to mobile plants.

• It was equipped with multiple storage bins for different types of aggregates.

• The plant had a conveyor belt system to transfer the aggregates to the mixer.

• We used this type of batching plant because it provided
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Q7. At which project you are working
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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. Self introduction & previous company experience
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Q1. Basic design process, BIL of Substation equipment,
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