Bharat Electronics Interview Questions, Process, and Tips

Q1. WHAT ARE TRANSFORMWERS
Ans. 
Transformers are devices that transfer electrical energy between two or more circuits through electromagnetic induction.
• Transformers consist of primary and secondary coils wound around a core made of ferromagnetic material.

• They work on the principle of electromagnetic induction, where changing current in the primary coil induces a voltage in the secondary coil.

• Transformers are used to step up or step down voltage level...read more
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Q2. WHAT ARE MICROCONTROLLERS
Ans. 
Microcontrollers are small computers on a single integrated circuit used to control electronic devices.
• Microcontrollers are often used in embedded systems for specific tasks.

• They contain a CPU, memory, and input/output peripherals on a single chip.

• Examples include Arduino, Raspberry Pi, and PIC microcontrollers.
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Q1. Technical interview
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Q2. Electronics communication
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Q1. Technical base qwestion
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Q2. Electronics base
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Q1. One on round inter
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Q2. Total electronics
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Q1. Explain First angle projection
Ans. 
First angle projection is a method of representing a 3D object in 2D by projecting the object onto a plane from the perspective of the viewer.
• In first angle projection, the object is placed in the first quadrant of the viewing plane.

• The top view is placed above the front view and the side view is placed to the right of the front view.

• This method is commonly used in Europe and Asia.

• It is important to understand the orie...read more
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Refer R S khurumi, mechanical objective book

Q1. What is a thermodynamic cycle?
Ans. 
A thermodynamic cycle is a series of processes that involve the transfer of heat and work to and from a system.
• Involves a series of processes that form a closed loop

• Transfer of heat and work occurs during each process

• Common examples include the Carnot cycle, Rankine cycle, and Brayton cycle
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Q1. How to manage the under processing for the team members
Ans. 
To manage under processing for team members, provide clear instructions, set realistic goals, offer support and resources, monitor progress, and provide feedback.
• Provide clear instructions on tasks and expectations

• Set realistic goals and deadlines

• Offer support and resources to help team members succeed

• Monitor progress regularly to identify any issues or delays

• Provide constructive feedback to help improve performance
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Q2. How do production line given the non stop meterial or products
Ans. 
Production lines are designed to handle non-stop flow of materials or products efficiently.
• Implementing automated systems to ensure continuous flow of materials

• Utilizing sensors and monitoring systems to track inventory levels and prevent shortages

• Implementing lean manufacturing principles to optimize production flow

• Training employees on efficient production line operation

• Regular maintenance and upkeep of machinery to
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Q1. Self introduction
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Q2. Self confidence
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Q1. What is refrigeration cycle
Ans. 
The refrigeration cycle is a process that removes heat from a space or substance to lower its temperature.
• The cycle consists of four main components: compressor, condenser, expansion valve, and evaporator.

• The compressor increases the pressure and temperature of the refrigerant gas.

• The high-pressure gas then flows into the condenser where it releases heat and becomes a high-pressure liquid.

• The liquid refrigerant passes ...read more
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Q2. What is air conditioner
Ans. 
An air conditioner is a device that cools and dehumidifies the air in a room or building.
• Air conditioners use refrigeration cycles to remove heat and moisture from the air.

• They consist of components such as compressors, condensers, evaporators, and fans.

• Air conditioners can be used for both cooling and heating purposes.

• Examples of air conditioners include window units, split systems, and central air conditioning system
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Q3. How many types of condenser are tere
Ans. 
There are several types of condensers used in various industries and applications.
• Air-cooled condenser

• Water-cooled condenser

• Shell and tube condenser

• Plate condenser

• Evaporative condenser

• Surface condenser

• Finned tube condenser
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Q4. Primary secondary and condenser and ahu how to work explain
Ans. 
Primary, secondary, condenser, and AHU are components of a HVAC system.
• Primary and secondary refer to the two sides of a heat exchanger in the HVAC system.

• The primary side carries the hot fluid or refrigerant, while the secondary side carries the cool fluid or air.

• The condenser is a heat exchanger that removes heat from the refrigerant and converts it from a gas to a liquid.

• The AHU (Air Handling Unit) is responsible fo...read more
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Q5. How many types of chiller safety are there
Ans. 
There are several types of chiller safety measures that are implemented to ensure safe operation and prevent accidents.
• Safety measures include pressure relief valves to prevent overpressure

• Temperature sensors to monitor and control the chiller's operating temperature

• Flow switches to detect and prevent low or no flow conditions

• High-pressure switches to protect against excessive pressure

• Low-pressure switches to prevent d...read more
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Q6. How much in resistance ohms
Ans. 
The resistance is measured in ohms.
• Resistance is a measure of how much a material opposes the flow of electric current.

• The unit of resistance is ohms (Ω).

• Resistance can be calculated using Ohm's Law: R = V/I, where R is resistance, V is voltage, and I is current.

• Resistance can vary depending on the material, length, and cross-sectional area of a conductor.

• For example, a copper wire with a length of 1 meter and a cross-...read more
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Q7. How much sensor voltage
Ans. 
The sensor voltage varies depending on the specific sensor and its application.
• Sensor voltage is typically measured in volts (V).

• Different sensors may have different voltage ranges and requirements.

• For example, a temperature sensor may operate within a voltage range of 0-5V.

• Some sensors may require a specific voltage supply, while others may be designed to work with a wide range of voltages.

• It is important to consult t...read more
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Q8. Thermoelectric refrigeration system operate on the principle of peltier effect
Ans. Why is ammonia the only common refrigerant used in the absorption system
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Q9. Because ammonia is cheap readily available and has the highest efficiency
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