Siemens Junior Electrical Engineer Trainee Interview Questions and Answers

Q1. Tell me about basics of plc??
Ans. 
PLC stands for Programmable Logic Controller, used in industrial automation to control machinery and processes.
• PLC is a digital computer used for automation of electromechanical processes.

• It uses a programmable memory to store instructions and specific functions.

• PLCs are commonly used in manufacturing plants, assembly lines, and robotic devices.

• They can be programmed using ladder logic, function block diagrams, or stru...read more
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Q2. Tell something about industrial automation??
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Industrial automation involves the use of control systems such as robots and computers to handle different processes and machinery in an industrial setting.
• Industrial automation helps improve efficiency and productivity by reducing human intervention in repetitive tasks.

• It involves the use of sensors, actuators, and controllers to monitor and control various processes.

• Examples of industrial automation include automated...read more
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Q1. Draw the star delta controlling
Ans. 
Star delta controlling is a method used to reduce the starting current of induction motors.
• Star delta controlling involves initially connecting the motor windings in a star configuration for starting, then switching to a delta configuration for running.

• It is commonly used for large induction motors to reduce the starting current and torque.

• The transition from star to delta configuration is typically controlled by a mot...read more
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Q2. How many contactor use in star delta??
Ans. 
In star delta connection, typically two contactors are used.
• In star delta connection, one contactor is used for star connection and another contactor is used for delta connection.

• The star contactor is typically rated for the current of one winding, while the delta contactor is rated for the full motor current.

• Using two contactors helps in reducing the starting current and torque in the motor.

• For example, a 3-phase moto...read more
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Q3. Draw the single line diagram for DOL.
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Single line diagram for DOL is a simple representation of Direct-On-Line motor starter circuit.
• DOL starter consists of a contactor, overload relay, and start/stop push buttons.

• The single line diagram shows the connections between these components.

• The power supply is connected to the contactor, which is then connected to the motor.

• The overload relay is connected in series with the motor to protect it from overloading.

• St...read more
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Q1. How many years experience in electrical technician in India
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Q2. Dubai UAE all futain
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Q3. Johnson controls Chennai oragadam
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Q4. Melcon private limited Chennai
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How to make new project in R&D

Q1. All smart City Device configuration
Ans. 
Smart City Device configuration involves setting up various sensors, communication protocols, and data management systems to enable efficient city operations.
• Configure sensors for monitoring traffic flow, air quality, noise levels, etc.

• Implement communication protocols such as LoRaWAN, NB-IoT, or WiFi for data transmission.

• Set up data management systems like cloud platforms or edge computing for processing and analyzin
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Q1. Basic DOL diagram and drawing DOL Circuit
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Q2. How to select plc and cards
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PLC and card selection depends on the application requirements and budget.
• Identify the required inputs and outputs

• Consider the communication protocols needed

• Evaluate the processing power and memory requirements

• Determine the budget and cost of ownership

• Research and compare different brands and models

• Consider the availability of technical support and spare parts

• Ensure compatibility with existing systems

• Consider the envir
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Q1. Introduction in the technical My self Suneel meena for electrical engineering rtu kota 67.28 % My b.tech electrical engineering my b.tech complete in 2021 and i have work in 132 kv sub station bhar...read more
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Q2. Tell me about my self
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Q3. Introduction in my self
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Q1. Questions from previous employment.
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Q2. Asked about knowledge in material selection according to design
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Q1. Asked to draw a any feeder drawing in software using Eplan tool.
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Q2. Asked about eplan tools
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Q1. General questions about my self,salary discussion.
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