Sedemac Mechatronics Interview Questions, Process, and Tips

Q1. What is PCB and what is function of PCB components
Ans. 
PCB stands for Printed Circuit Board, it is a board made of non-conductive material on which electronic components are mounted and connected.
• PCB provides mechanical support to electronic components

• PCB provides electrical connections between components

• PCB helps in reducing the size of electronic devices

• Components on PCB include resistors, capacitors, diodes, transistors, etc.
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Q2. What is resister
Ans. 
A resistor is an electronic component that resists the flow of electrical current.
• Resistors are used to control the amount of current flowing in a circuit

• They are measured in ohms (Ω)

• Resistors can be fixed or variable, with variable resistors allowing for adjustable resistance

• Examples of resistors include carbon film resistors, metal film resistors, and wirewound resistors
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Q3. Function of capacitor
Ans. 
Capacitors store and release electrical energy in a circuit.
• Capacitors store energy in an electric field

• They can release this stored energy when needed

• Capacitors are commonly used in filters, timing circuits, and power conditioning

• Examples include smoothing out voltage fluctuations in power supplies
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Q4. Function of inductor
Ans. 
An inductor is a passive electronic component that stores energy in a magnetic field when current flows through it.
• Inductors resist changes in current flow

• They are commonly used in filters, oscillators, transformers, and power supplies

• Inductors are measured in Henry (H)

• They have the ability to store energy in the form of a magnetic field
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Q5. How you define capacitor polarity
Ans. 
Capacitor polarity refers to the orientation of the positive and negative terminals on a capacitor.
• Capacitors have a positive and negative terminal, with the positive terminal typically marked with a plus sign (+) or a longer lead

• It is important to observe the polarity when connecting capacitors in a circuit to prevent damage or malfunction

• Electrolytic capacitors are polarized, meaning they have a specific positive and...read more
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Psychological question answers

Q1. Physics based questions
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Q1. Some engineering mathematics and control system.
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Q1. What is resistance?
Ans. 
Resistance is the act of opposing or withstanding something.
• Resistance can refer to the opposition to a force or influence.

• It can also refer to the ability of a material to withstand wear, pressure, or damage.

• Examples include electrical resistance in a circuit, resistance to antibiotics in bacteria, and resistance training in fitness.
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Q2. What is KCL or KVL?
Ans. 
KCL stands for Kirchhoff's Current Law and KVL stands for Kirchhoff's Voltage Law, both are fundamental laws in electrical engineering.
• KCL states that the total current entering a node is equal to the total current leaving the node.

• KVL states that the sum of voltages around any closed loop in a circuit is equal to zero.

• These laws are used to analyze and solve electrical circuits.

• For example, in a simple circuit with a ...read more
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