ECIL Junior PCB Engineer Interview Questions and Answers

Q1. Electronic communications engineering
Ans. Electronic is a hardware and software
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Q2. How to calculate for the resistance
Ans. 
Resistance can be calculated using Ohm's Law, which states that resistance is equal to voltage divided by current.
• Use Ohm's Law: R = V / I

• Resistance is measured in ohms (Ω)

• Voltage is measured in volts (V)

• Current is measured in amperes (A)

• Example: If the voltage is 12V and the current is 2A, the resistance would be 6Ω
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Q3. What is colour coding
Ans. 
Colour coding is a system of assigning colours to objects or information to convey meaning or identification.
• Used in various fields such as electronics, wiring, and safety equipment

• Example: Red wire indicates positive polarity in electronics

• Example: Red colour on safety equipment indicates fire hazard

• Helps in quick identification and reduces errors
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Q4. Colours coding for the resistance
Ans. 
Color coding is used to identify the resistance value of a resistor.
• The first band represents the first digit of the resistance value.

• The second band represents the second digit of the resistance value.

• The third band represents the multiplier.

• The fourth band represents the tolerance.

• For example, a resistor with brown, black, red, and gold bands has a resistance value of 1.0 ohm with a tolerance of +/- 5%.
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Q1. What is embedded system
Ans. 
Embedded system is a computer system designed to perform specific tasks, with dedicated functions and limited resources.
• Embedded systems are found in various devices such as smartphones, cars, medical equipment, and home appliances.

• They are designed to be reliable, efficient, and often operate in real-time.

• Embedded systems typically consist of a microcontroller or microprocessor, memory, input/output interfaces, and so...read more
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Q2. What is embedded system usefull
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Embedded systems are useful for controlling and monitoring various devices and systems.
• Embedded systems are used in a wide range of applications such as consumer electronics, automotive systems, industrial automation, and medical devices.

• They provide real-time control and monitoring capabilities, allowing devices to respond quickly and accurately to external events.

• Embedded systems are often used in safety-critical app...read more
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It is eassy basic electrical then maths

Q1. Basic eletrcal family'baground and branch
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Q2. Different ac and dc Devices of ac Devices of dc
Ans. 
AC devices use alternating current while DC devices use direct current.
• AC devices include air conditioners, refrigerators, and washing machines.

• DC devices include batteries, solar panels, and electronic devices.

• AC devices are more commonly used in households while DC devices are more commonly used in portable devices.

• AC devices require a power source that can convert DC to AC while DC devices require a power source tha
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Q1. Please tell us about your experience and what you did in last company?
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Q1. What is current ?
Ans. 
Current is the flow of electric charge in a circuit.
• Current is measured in Amperes (A)

• It is the rate of flow of electric charge

• Current flows from positive to negative terminal in a circuit

• Examples: Direct current (DC) and Alternating current (AC)
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Q2. How many parameter we measure in multimeter?
Ans. 
A multimeter typically measures several parameters including voltage, current, and resistance.
• Voltage

• Current

• Resistance

• Continuity

• Diode testing
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Q3. What is difference between cro and functions generator?
Ans. 
A CRO (Cathode Ray Oscilloscope) is used to display and analyze waveforms, while a function generator is used to generate different types of waveforms.
• CRO is used for visualizing electrical signals in the time domain, while a function generator is used to create specific waveforms like sine, square, triangle, etc.

• CRO provides a visual representation of the input signal's amplitude, frequency, and phase, while a functio...read more
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Q4. What is normal soldering temperature?
Ans. 
Normal soldering temperature typically ranges from 300 to 400 degrees Celsius.
• Normal soldering temperature ranges from 300 to 400 degrees Celsius

• Different types of solder may have specific temperature requirements

• Using a temperature-controlled soldering iron is recommended for precise soldering

• Excessive heat can damage components and create poor solder joints
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Q5. Explain different between schematic and block diagram?
Ans. 
Schematic diagrams show the electrical connections and functions of a specific circuit, while block diagrams show the components of a system and their connections.
• Schematic diagrams focus on the details of individual components and their connections within a circuit.

• Block diagrams provide an overview of the system by showing the components and their interconnections.

• Schematic diagrams are commonly used in electronics t...read more
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Will be asking questions from English, basic aptitude and physics background

Q1. Common questions
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Q1. Personal experience
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Maths, English Grammer, G.k

Q1. Based on Resume what we given
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Q1. Sharing Company Knowledge
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Q1. PLC programming, TPM, MTTR, MTBF
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Q2. How to deal with chinese counterparts
Ans. 
Understand cultural differences, build relationships, communicate clearly and respectfully.
• Research and learn about Chinese culture and customs.

• Be patient and build relationships before discussing business.

• Communicate clearly and respectfully, avoiding direct confrontation.

• Be aware of nonverbal communication and body language.

• Use a translator if necessary.

• Be prepared for negotiations and understand the importance of sa...read more
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Q3. How to deal with colleagues
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Q1. Salary discussion, Why changing
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