Electrolab Interview Questions and Answers

Q1. Engineering drawings
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Q2. Stainless steel grades ?
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Stainless steel grades refer to different types of stainless steel based on their composition and properties.
• Stainless steel grades are categorized based on their composition, such as austenitic, ferritic, martensitic, and duplex.

• Common examples include 304 (austenitic), 316 (austenitic), 430 (ferritic), and 410 (martensitic) stainless steel.

• Each grade has unique properties like corrosion resistance, strength, and heat...read more
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Q3. Types of gears
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Types of gears include spur, helical, bevel, worm, rack and pinion, and planetary gears.
• Spur gears have straight teeth and are the most common type of gear.

• Helical gears have angled teeth for smoother operation.

• Bevel gears have cone-shaped teeth and are used to change the direction of rotation.

• Worm gears have a screw-like appearance and are used for high torque applications.

• Rack and pinion gears convert rotational moti...read more
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Q4. Process on metals
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Process on metals involves various techniques to shape, join, or treat metal materials for different applications.
• Metals can be processed through techniques like casting, forging, machining, welding, and heat treatment.

• Casting involves pouring molten metal into a mold to create a desired shape.

• Forging uses compressive forces to shape metal into desired forms.

• Machining involves removing material from a metal workpiece u...read more
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Q5. 1st angle and 3rd angle
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Q6. Least count of vernier caliper and micrometer
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The least count of a vernier caliper is 0.02 mm and the least count of a micrometer is 0.01 mm.
• Vernier caliper has a least count of 0.02 mm, which means it can measure up to 0.02 mm accurately.

• Micrometer has a least count of 0.01 mm, allowing for more precise measurements compared to a vernier caliper.
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Q7. Micron unit conversion
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Q8. Academic projects and internship
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Q1. C programming data types
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C programming data types include int, float, char, double, and more.
• Basic data types in C include int, float, char, double, and void.

• Modifiers like signed, unsigned, short, and long can be used with int data type.

• Examples: int num = 10; float pi = 3.14; char letter = 'A'; double value = 10.5;
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Q2. Communication protocol
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Q1. Self introduction
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Q2. C coding , communication protocol
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Basic Aptitude Questions

Q1. Basic Electronics and Electric Questions
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Q2. What the Latch?
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A latch is a mechanical device used to secure a door or gate.
• A latch typically consists of a bar or bolt that is engaged or disengaged by lifting or turning a knob or lever.

• Common types of latches include barrel bolts, spring latches, and deadbolts.

• Latches are commonly used on doors, gates, windows, cabinets, and other types of enclosures.

• Proper installation and maintenance of latches are important for security and saf
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Q3. What is Transistor?
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A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power.
• Transistors are fundamental building blocks of modern electronic devices.

• They can amplify signals, regulate currents, and act as switches.

• Common types include bipolar junction transistors (BJTs) and field-effect transistors (FETs).
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Q4. What is Passive and Active Components?
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Passive components do not require a power source to operate, while active components require a power source.
• Passive components include resistors, capacitors, inductors, and transformers.

• Active components include transistors, diodes, and integrated circuits.

• Passive components do not amplify or control electrical signals, while active components do.

• Passive components are typically used to attenuate or filter signals, whi...read more
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Q5. What are Logic Gates and It's nature?
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Logic gates are electronic devices that perform logical operations on one or more binary inputs to produce a single binary output.
• Logic gates are the building blocks of digital circuits.

• They can perform operations such as AND, OR, NOT, NAND, NOR, XOR, and XNOR.

• Each gate has a specific truth table that defines its behavior.

• For example, an AND gate outputs 1 only when both inputs are 1.

• Logic gates are used in computers,
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Q6. How to use a multimeter?
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A multimeter is a versatile tool used to measure voltage, current, and resistance in electrical circuits.
• Set the multimeter to the appropriate function (voltage, current, or resistance)

• Connect the probes to the circuit being tested

• Read the measurement displayed on the multimeter screen

• Ensure proper safety precautions are taken when working with live circuits

• For example, to measure voltage, set the multimeter to the vol...read more
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Q7. How to check current with DMM?
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To check current with a DMM, set the DMM to the current measurement mode, connect the DMM in series with the circuit, and read the current value displayed on the DMM.
• Set the DMM to the current measurement mode

• Connect the DMM in series with the circuit

• Read the current value displayed on the DMM
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Q1. What makes you to enter this industry?
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Passion for problem-solving and hands-on technical work led me to pursue a career in the field service industry.
• Enjoy troubleshooting and fixing technical issues

• Prefer hands-on work over desk job

• Interest in technology and machinery

• Opportunity to travel and work in different environments
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Q2. Salary expectations?
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