Techno Electric & Engineering Company Electrical Engineer Interview Questions and Answers

Q1. What is synchronous and histerisis motor
Ans. 
Synchronous motor runs at a constant speed while hysteresis motor has a rotor that follows the rotating magnetic field.
• Synchronous motor is used in applications where constant speed is required, such as in clocks and timers.

• Hysteresis motor is used in applications where precise control of speed is required, such as in record players and tape recorders.

• Synchronous motor has a stator and rotor that rotate at the same spe...read more
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Q2. Different between plc and scada
Ans. 
PLC is a hardware device that controls industrial processes, while SCADA is a software system that monitors and controls those processes.
• PLC is a programmable logic controller that controls the input/output of industrial processes.

• SCADA is a supervisory control and data acquisition system that collects and analyzes data from the industrial processes.

• PLC is a hardware device, while SCADA is a software system.

• PLC is used...read more
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Q3. Different between relay and contactor
Ans. 
Relays are used for low power applications while contactors are used for high power applications.
• Relays are typically used in control circuits to switch low power loads such as lights and fans.

• Contactors are used to switch high power loads such as motors and compressors.

• Relays have a lower current rating than contactors.

• Contactors have larger contacts and can handle higher currents than relays.

• Relays are typically smal...read more
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Q4. Different between switch and relay
Ans. 
Switches are used to control the flow of current in a circuit, while relays are used to switch a circuit on or off.
• Switches are manually operated, while relays are electrically operated.

• Switches are used in low voltage applications, while relays are used in high voltage applications.

• Switches are simple in construction, while relays are more complex.

• Examples of switches include light switches and toggle switches, while ...read more
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Q1. Different between switch and timer
Ans. 
Switch is an electronic component used to connect or disconnect a circuit while a timer is a device used to measure time intervals.
• Switch is used to turn on/off a device while timer is used to control the duration of a device's operation.

• Switch is a binary device with two states (on/off) while timer can be analog or digital and can measure time in seconds, minutes, or hours.

• Examples of switches include light switches, ...read more
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Q1. Realy, isolator, insulator circuit breaker
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Q2. Transformer, winding and other
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Q1. Last job salary and experience details.
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Q1. Job related technical questions like rolling mill, especially drives.
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Q1. Salary negotiation.
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Electrical related questions

Q1. Technical questions
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Q2. Related to job for junior engineer
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I have raedy to job for office or work from Home
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Q3. Job time is part time
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Q4. Salary of a month
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Q5. Which post to join to company
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Q6. All doubts to ask
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Q7. I ask to my question to join company process is very fast
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I mean reply me to HR for job
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Q1. Which is a product manufacturers this company
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Q2. Something ask for junior engineer job
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Q3. Discussion with company for job
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Q4. Discussion with staff members
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Related to electrical engineering bases

Q1. What are your strengths and weaknesses?
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Q2. What are your salary expectations?
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Q3. Share details of your previous job.
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Q1. Technical questions, thermal application, theory of machine,
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Q2. Any thermal application related questions.
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Q1. RAC and theory of machine
Ans. 
RAC stands for Refrigeration and Air Conditioning, while Theory of Machines deals with the study of machines and their mechanisms.
• RAC involves the study of refrigeration cycles, air conditioning systems, and heat transfer processes.

• Theory of Machines focuses on the design, analysis, and operation of machines like engines, turbines, and gears.

• Understanding RAC is essential for designing efficient cooling systems, while ...read more
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Q2. RAC and theory of machine som
Ans. 
RAC stands for Refrigeration and Air Conditioning. Theory of Machines is a branch of mechanical engineering that deals with the study of machines.
• RAC involves the study of refrigeration cycles, air conditioning systems, and heat transfer processes.

• Theory of Machines focuses on the design, analysis, and operation of machines like engines, gears, and mechanisms.

• Understanding RAC is important for designing efficient cooli...read more
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Q3. Basic Tharmal , machine design
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Technical and HR round

Q1. Describe About yourself
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Q2. Your favourite subject
Ans. 
My favorite subject is computer science.
• I enjoy learning about algorithms and data structures.

• I find programming languages fascinating and love exploring their features.

• I am interested in computer networks and how they enable communication between devices.

• I am passionate about software development and enjoy creating applications.

• I am excited about the potential of artificial intelligence and machine learning.
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Q3. Thermodynamics topic questions
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Q4. Fluid topic questions
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