A.P.Electronics R&D Trainee Interview Questions and Answers

20 questions 40 minutes, 3 type of question easy, medium and hard each of 1, 3 and 5 points respectively, if you answer correct then you move above in difficulty else go down.

Q1. 20 questions 40 minutes same pattern as apti. Questions mainly from power electronics, network theory, machines and analog electronics
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Q2. 2 coding question one easy, one medium. Doing 1 question only may work
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Q1. Picked question from my cv/ project. Complete analysis of boost converter, voltage at no load, saturation of inductor, parasitics etc and much more.
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Q2. Bjt as switch opams mosfet on off charecteristics etc, analog electronics.
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Q3. 2 easy coding problem of searching and sorting algos
Ans. 
Implementing binary search and bubble sort algorithms in Python
• Binary search: Divide and conquer algorithm to find a target value in a sorted array

• Bubble sort: Iteratively swap adjacent elements if they are in the wrong order

• Example for binary search: def binary_search(arr, target):

• Example for bubble sort: def bubble_sort(arr):
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Q1. What is bending movement in simple supported beam?
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Bending movement in a simple supported beam refers to the deformation caused by external loads, resulting in curvature along the length of the beam.
• Bending movement is caused by external loads applied to a beam, resulting in stress and deformation.

• The beam experiences tension on one side and compression on the other, leading to curvature.

• The maximum bending moment occurs at the center of the beam, where the curvature i...read more
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Q2. What is the units of strain
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The units of strain are dimensionless.
• Strain is a measure of deformation or change in shape of a material.

• It is calculated as the change in length divided by the original length.

• Since strain is a ratio of lengths, it is dimensionless.

• Common units for strain include microstrain (με) and parts per million (ppm).
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Q3. Strees definition
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Stress is a physical, mental, or emotional factor that causes bodily or mental tension.
• Stress can be caused by various factors such as work pressure, relationship issues, financial problems, or health concerns.

• It can manifest in physical symptoms like headaches, muscle tension, or stomach issues.

• Chronic stress can lead to long-term health problems like heart disease, depression, or anxiety disorders.
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Q1. What is the principle of transformer
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The principle of a transformer is based on electromagnetic induction.
• Transformers work on the principle of transferring electrical energy between two or more coils through electromagnetic induction.

• They consist of two coils, known as the primary and secondary coils, which are wound around a common magnetic core.

• When an alternating current (AC) flows through the primary coil, it creates a changing magnetic field around ...read more
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Q1. Hello hi chhodiye Jai matadi boliye
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Q2. Hello hi bye bye bye bye bye and bye and bye bye for now
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Q1. What is nickel plating
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Nickel plating is a process of electroplating a layer of nickel onto a metal surface to enhance its appearance, corrosion resistance, and durability.
• Nickel plating involves immersing the metal object in a solution containing nickel ions and applying an electric current to deposit a layer of nickel onto the surface.

• It is commonly used to protect metal objects from corrosion and wear, as well as to improve their aestheti...read more
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Q2. What is cadmium plating
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Cadmium plating is a process of electroplating a thin layer of cadmium onto a metal surface to provide corrosion resistance and improve lubricity.
• Cadmium plating is commonly used in aerospace and military applications.

• It is known for its excellent corrosion resistance, especially in saltwater environments.

• Cadmium plating also offers good lubricity, making it suitable for moving parts.

• The process involves immersing the ...read more
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Q1. What is Two stroke and four stroke engine
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Two stroke and four stroke engines are types of internal combustion engines used in vehicles and machinery.
• Two stroke engines complete a power cycle in two strokes of the piston, while four stroke engines complete it in four strokes.

• Two stroke engines have a simpler design and are lighter, but are less fuel efficient and emit more pollutants.

• Four stroke engines are more complex but offer better fuel efficiency and lowe...read more
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Q2. Ac component name and other questions etc.
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