Lohum Cleantech Executive Technician Interview Questions and Answers for Experienced

Q1. Questions regarding previous job experience like Technical questions regarding SLD, Transformer, commissioning etc.
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Q2. Role and responsibilities
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GD regarding Renewable energy and assessment

Q1. Introduce your self
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Ap per your job profile

Q1. About MCR ICR with details
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Q1. About aptitude group discussion
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Q1. What are the Parts of Inverter
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The parts of an inverter include DC input, power transistors, transformer, output filter, and control circuit.
• DC input: where the direct current is supplied to the inverter

• Power transistors: responsible for converting DC to AC

• Transformer: used to step up or step down the voltage

• Output filter: smoothens the output waveform

• Control circuit: manages the operation of the inverter
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Q2. Formula of Radiation of the Day.
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The formula for radiation of the day is based on the Stefan-Boltzmann law, which states that the total energy radiated per unit surface area of a black body is directly proportional to the fourth power of the body's absolute temperature.
• Radiation of the day is calculated using the Stefan-Boltzmann law: P = σAT^4

• P represents the power radiated per unit area, σ is the Stefan-Boltzmann constant, A is the surface area, and...read more
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Q3. What are the challenges you have faced in your previous plant and How did you overcome this.
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Challenges faced in previous plant and how they were overcome
• One challenge was outdated equipment causing frequent breakdowns

• Implemented a preventive maintenance schedule to address the issue

• Another challenge was lack of skilled manpower

• Conducted training programs and hired experienced technicians

• Difficulty in meeting production targets due to inefficiencies

• Implemented lean manufacturing principles to streamline proces
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Q1. In which face we develop PPAP documents
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PPAP documents are developed in the Production Part Approval Process (PPAP) face.
• PPAP documents are developed during the production part approval process.

• This is typically the fourth phase of the APQP (Advanced Product Quality Planning) process.

• PPAP documents include items such as control plans, FMEAs, and measurement system analysis.

• The purpose of PPAP is to ensure that all parts meet customer requirements and specifi...read more
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Q1. What is the shrinkage value of pa66
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The shrinkage value of pa66 varies depending on the specific grade and processing conditions.
• Shrinkage is the reduction in size of a molded part as it cools and solidifies.

• The shrinkage value of pa66 can range from 1.5% to 3.5%.

• Factors that affect shrinkage include mold design, processing parameters, and part geometry.

• It is important to account for shrinkage when designing molds and parts to ensure proper fit and funct
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Q1. What is optimize moisture content?
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Optimize moisture content refers to adjusting the amount of moisture in a material to achieve the desired properties.
• Optimizing moisture content involves finding the right balance to enhance the quality and performance of a material.

• It is important in industries like agriculture, food processing, and construction.

• For example, in agriculture, optimizing moisture content in soil can improve crop growth and yield.
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Q2. Types of cement?
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Types of cement include Portland cement, white cement, rapid hardening cement, and low heat cement.
• Portland cement is the most common type used in construction.

• White cement is used for architectural purposes and to create colored concrete.

• Rapid hardening cement sets quickly and is used in projects with tight deadlines.

• Low heat cement generates less heat during hydration and is used in large concrete structures.
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Q1. Concrete technology
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Q2. Soil and steel testing and field observation
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