CES Junior Engineer Interview Questions and Answers

Q1. PLC, VFD, sensors, robot knowledge, Any language like C++, Python is additional advantage, mobile industry knowledge could also provide advantage
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Q1. About yourself followed by one more technical round basically asking technical part from previous company
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Q1. What are your salary expectations?
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Q2. Share details of your previous job.
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Q3. Tell me about yourself.
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Q1. Past experience and salary exp.
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Q1. Kpi and past exp disc.
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Q1. How to increase efficiency of product
Ans. 
Increasing product efficiency can be achieved through optimizing processes, improving technology, and enhancing employee skills.
• Optimize production processes to eliminate waste and improve workflow

• Upgrade technology to automate tasks and improve accuracy

• Provide training and development opportunities for employees to enhance their skills and knowledge
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Q2. What will you change in the product
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I would improve the user interface to enhance user experience and streamline navigation.
• Enhance user interface design for better usability

• Streamline navigation to improve user experience

• Implement user feedback to make necessary changes

• Optimize performance for faster loading times
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Q1. Technical about plastic and sheet metal
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Q2. Types of process
Ans. 
Types of process include batch process, continuous process, and hybrid process.
• Batch process involves processing a set amount of materials at one time

• Continuous process involves ongoing production without interruption

• Hybrid process combines elements of both batch and continuous processes
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Q1. Questiones based on past experience and projects
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Q2. Reason for switching the job
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Q3. Knowledge of CAD softwares
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Q1. What is sub cooling in air conditioning?
Ans. 
Sub cooling in air conditioning is the process of cooling the refrigerant below its saturation temperature to improve system efficiency.
• Sub cooling increases the efficiency of the air conditioning system by ensuring the refrigerant is in a liquid state before entering the expansion valve.

• It helps in preventing flash evaporation of the refrigerant, which can lead to inefficiencies in the system.

• Sub cooling is typically ...read more
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Q2. How is ISEER rating calculated
Ans. 
ISEER rating is calculated based on the weighted average of the cooling performance of an air conditioner under different conditions.
• ISEER = (Weighted Cooling Capacity at 100% load x 0.4) + (Weighted Cooling Capacity at 75% load x 0.2) + (Weighted Cooling Capacity at 50% load x 0.4)

• The higher the ISEER rating, the more energy efficient the air conditioner is.

• ISEER rating helps consumers compare the energy efficiency of...read more
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Q3. Draw the Refrigeration cycle
Ans. 
The refrigeration cycle is a thermodynamic cycle used in refrigerators and air conditioning systems to transfer heat from a low temperature to a high temperature environment.
• The cycle consists of four main components: compressor, condenser, expansion valve, and evaporator.

• The refrigerant enters the compressor as a low-pressure gas and leaves as a high-pressure, high-temperature gas.

• The high-pressure gas then flows into...read more
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Q4. Mainstream refrigerants used in household air conditioning
Ans. 
Mainstream refrigerants used in household air conditioning include R-410A, R-22, and R-134a.
• R-410A is a popular refrigerant known for its high efficiency and environmental friendliness.

• R-22, although being phased out due to its ozone-depleting properties, is still commonly found in older air conditioning systems.

• R-134a is commonly used in automotive air conditioning systems but can also be found in some household units
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Q5. Explain 1 ton cooling concept
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1 ton cooling concept refers to the amount of heat required to melt one ton of ice in a 24-hour period.
• 1 ton of cooling is equal to 12,000 BTUs per hour

• It is commonly used in the HVAC industry to measure the cooling capacity of air conditioning systems

• For example, a 2-ton air conditioner can remove 24,000 BTUs of heat per hour
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Q6. Relation between current, voltage and power
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The relationship between current, voltage, and power is described by Ohm's Law, which states that current is directly proportional to voltage and inversely proportional to resistance.
• Ohm's Law states that V = I * R, where V is voltage, I is current, and R is resistance.

• Power (P) is calculated using the formula P = V * I, where P is power, V is voltage, and I is current.

• In a circuit with a constant resistance, an increa...read more
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Q7. Conversion from BTU to watts and vice versa
Ans. 
1 BTU is approximately equal to 0.29307107 watts. To convert BTU to watts, multiply by 0.29307107. To convert watts to BTU, divide by 0.29307107.
• 1 BTU = 0.29307107 watts

• To convert BTU to watts, multiply by 0.29307107

• To convert watts to BTU, divide by 0.29307107
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Q1. No questions just test
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Q1. Would you be comfortable to regularly work extra hours?
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Q2. Introduction about yourself?
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Q3. Why do you want to join LG/ consumer durable industry?
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Q4. If your manager and colleagues are busy with work , how will you manage to learn the things from them?
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Q5. Present Salary and expected salary
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Q1. About resume and experience
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Q1. Questions based in on experience
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Q1. Salary discussion and joining details
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1 hour - Trees, Array, Hashmap, DP, CP etc

Q1. Project discussion
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