Bajaj Electricals Interview Questions, Process, and Tips for Freshers

Q1. Basic Qustions JS
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Q2. Intermediate topics JS
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Q1. What is auto transfomer
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An auto transformer is a type of transformer where part of the winding is common to both the primary and secondary circuits.
• Auto transformers have only one winding with multiple taps for input and output connections.

• They are more efficient and cost-effective compared to traditional transformers.

• Auto transformers are commonly used in voltage regulation applications.

• Example: A 220V to 110V step-down auto transformer.
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Q2. What's motor and type
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A motor is a device that converts electrical energy into mechanical energy. There are various types of motors including AC motors, DC motors, and servo motors.
• A motor is a machine that converts electrical energy into mechanical energy

• Types of motors include AC motors, DC motors, and servo motors

• AC motors run on alternating current and are commonly used in household appliances

• DC motors run on direct current and are ofte...read more
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Q3. What is circuit breaker
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A circuit breaker is an electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit.
• Automatically interrupts electrical flow when a fault is detected

• Can be reset manually after tripping

• Protects electrical devices and wiring from damage

• Commonly used in homes, buildings, and industrial settings

• Examples include thermal-magnetic, magnetic, and hydraulic-magnetic circuit break
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Q4. Which type ofac motor
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The type of AC motor commonly used in production engineering is the induction motor.
• The most common type of AC motor used in production engineering is the induction motor.

• Induction motors are reliable, cost-effective, and require minimal maintenance.

• Other types of AC motors used in production engineering include synchronous motors and DC motors for specific applications.

• Examples of induction motor applications in produ...read more
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Q5. What is different motor and generator
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Motors convert electrical energy into mechanical energy, while generators convert mechanical energy into electrical energy.
• Motors use electricity to produce motion, while generators use motion to produce electricity

• Motors have a rotor that spins within a stator, while generators have a rotor that is turned by an external force

• Motors are commonly used in appliances, vehicles, and industrial machinery, while generators a
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Q1. (1)Why transformers rating is in kva ?
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Transformers rating is in kVA because it takes into account both voltage and current.
• kVA is a unit of apparent power, which is the combination of real power (measured in kW) and reactive power (measured in kVAR).

• Transformers are designed to handle a certain amount of power, and kVA rating takes into account both the voltage and current that the transformer can handle.

• For example, a transformer with a rating of 100 kVA ...read more
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Q2. What is difference between ground and earth
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Ground is a conducting body that is used as a reference point for electrical circuits, while earth is a large conducting body that acts as a sink for electrical charges.
• Ground is a reference point for electrical circuits, while earth is a sink for electrical charges.

• Ground is a local concept, while earth is a global concept.

• Ground is a man-made concept, while earth is a natural concept.

• Ground is used to prevent electri...read more
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Q1. What is technical
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