Hindustan Syringes & Medical Devices Electrical Technician Interview Questions and Answers

Q1. 3 phase and 1 phase different
Ans. 
3 phase power has three conductors carrying three alternating currents, while 1 phase power has only one conductor carrying one alternating current.
• 3 phase power is more efficient for high power applications

• 1 phase power is commonly used in residential buildings

• 3 phase power provides a more balanced power supply compared to 1 phase power
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Q2. Kw and kva different
Ans. 
kW is a unit of real power while kVA is a unit of apparent power in electrical engineering.
• kW stands for kilowatts and represents the actual power consumed by a device or system.

• kVA stands for kilovolt-amperes and represents the total power in an electrical system, including both real and reactive power.

• The difference between kW and kVA is due to the presence of reactive power in the system.

• In an ideal system with unit...read more
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Q3. Power factor control point
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Q4. Transformer work of principle
Ans. 
Transformer works on the principle of electromagnetic induction to transfer electrical energy between two or more circuits.
• Transformers consist of two coils of wire, known as the primary and secondary coils.

• When an alternating current flows through the primary coil, it creates a changing magnetic field around it.

• This changing magnetic field induces a voltage in the secondary coil, transferring electrical energy between...read more
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Q5. Types of motor ac
Ans. 
Types of AC motors include induction motors, synchronous motors, and brushed and brushless DC motors.
• Induction motors: most commonly used type, simple design, reliable, low cost

• Synchronous motors: maintain constant speed, used in applications requiring precise speed control

• Brushed DC motors: use brushes to conduct current, simple design, easy to control speed

• Brushless DC motors: more efficient, longer lifespan, no brus
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Positive thinking myself

Q1. How many types of transformer and bus bar
Ans. 
There are several types of transformers and bus bars used in electrical systems.
• Transformers can be classified based on their construction, voltage level, and application.

• Common types of transformers include power transformers, distribution transformers, and instrument transformers.

• Bus bars are used to distribute electrical power in a system and can be categorized as rigid or flexible.

• Examples of bus bar types include ...read more
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Q2. What is Motor working process
Ans. 
The motor working process involves converting electrical energy into mechanical energy.
• Electricity is supplied to the motor, which creates a magnetic field.

• The magnetic field interacts with the motor's coils, causing them to rotate.

• The rotating coils generate mechanical energy, which can be used to power various devices.

• Different types of motors, such as AC motors and DC motors, have variations in their working process
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Q1. If you are fresher then please listen properly and give the answer point to point without hesitation.
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Q2. If you are experienced then please clear the consept as per queries.
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Q3. For freshers - Use your knowledge and attitude with confidence.
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Q4. For experienced - use your knowledge, skills, clear the consepts, use you attitude with confidence and smile.
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There was an assignment shared by the Hr that included Google sheets questions and formulas

Q1. First question included about my background and studies
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Q2. Next one included my projects on visualizations
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Q3. Third one was an interaction and interview by the Technical team of DMEs
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Q1. Family Status and previous work experience
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Q1. Work knowledge about your previous job
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