Sigma Engineered Solutions Assistant Engineer Interview Questions and Answers

Q1. About casting knowledge
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Q2. What are the TPM Pillar
Ans. 
TPM Pillars are the foundational elements of Total Productive Maintenance.
• TPM Pillars include: Autonomous Maintenance, Planned Maintenance, Quality Maintenance, Training and Education, Early Equipment Management, and Safety, Health, and Environment.

• Autonomous Maintenance involves operators taking responsibility for basic maintenance tasks.

• Planned Maintenance involves scheduling and executing maintenance tasks based on ...read more
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Q3. What is Process die casting
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Process die casting is a metal casting process in which molten metal is forced into a mold cavity under high pressure.
• The process involves injecting molten metal into a mold cavity at high pressure

• The mold is made of two parts, the fixed half and the ejector half

• The molten metal is poured into a shot sleeve and then injected into the mold cavity

• The process is used to produce complex shapes with high accuracy and surfac...read more
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Q4. What are type of GDC and pressure casting machine
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There are various types of GDC and pressure casting machines used in engineering.
• GDC machines include horizontal, vertical, and rotary types.

• Pressure casting machines include low-pressure, high-pressure, and vacuum casting machines.

• The type of machine used depends on the specific application and material being cast.

• For example, low-pressure casting machines are commonly used for aluminum casting, while high-pressure ca...read more
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Q1. Do trains have differential. How does a train run on curvature.
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Yes, trains do not have differentials. They run on curvature by allowing the wheels on the outer side of the curve to travel a longer distance than the wheels on the inner side.
• Trains do not have differentials like cars do, as each wheel is connected to the same axle and rotates at the same speed.

• To navigate curves, trains rely on the principle of coning, where the wheels are slightly tapered to allow the outer wheel t...read more
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Q1. Regards engine related
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Q1. Strength and performance related
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Q1. All over Transformer testing regarding
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Q2. Fully Explain string & central inverter and Transformer
Ans. 
String & central inverters are types of solar inverters used in solar power systems. Transformers are used to step up or step down voltage in electrical systems.
• String inverters are used in smaller solar power systems and convert DC power from solar panels into AC power for use in the home.

• Central inverters are used in larger solar power systems and are connected to multiple strings of solar panels to convert DC power ...read more
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Q3. Lt & ht cable regarding question
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Q4. Explain Hari Transformer unloading?
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Hari Transformer unloading involves safely removing transformers from trucks and placing them in designated areas.
• Ensure proper safety measures are in place before unloading transformers

• Use appropriate equipment such as cranes or forklifts to lift and move the transformers

• Follow manufacturer's guidelines for handling and placement of transformers

• Inspect transformers for any damage during unloading process

• Coordinate wit...read more
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Maths reasoning quantitive aptitude & general knowledge questions

Q1. About the company, about my work and about the machine I worked on. Also GD & T
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Q1. Salary deduction.
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General maths, english and current affairs

Any topic time provided was 5 minutes

Q1. About your MBA/PGDM course. Personal details. Whether having Bike and laptop. If a candidate has bike and laptop and the aptitude test and GD round has been cleared then the chances of getting the job is 9...read more
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Q1. Technical round and hr round
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