Ola Electric Mobility Interview Questions, Process, and Tips

Your qualification is not interview.Interview is your activity.Your personality.Your sence of humor. Your dressing sence.Your quickly answer and question is depend on your answer

Q1. What is the responsibility of store manager
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Q2. Why I am offer you this position
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Q1. How many ways we can share data between one app to another app?
Ans. 
There are multiple ways to share data between apps, including using intents, content providers, broadcast receivers, and shared preferences.
• Using Intents: Allows apps to send and receive data through an Intent object.

• Content Providers: Enable apps to share data with other apps by exposing a structured set of data through a URI.

• Broadcast Receivers: Apps can send broadcasts to other apps to share data or events.

• Shared Pr...read more
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Q2. Lifecycle of activity. What would be the state if app is running in the background. When it will be in onStop and onRestart state?
Ans. 
The app lifecycle includes states like running in the background, onStop, and onRestart.
• App running in the background: When the app is not visible but still running, it is in the background state.

• onStop state: Occurs when the activity is no longer visible to the user.

• onRestart state: Follows onStop and is called when the activity is being re-displayed to the user.
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Q3. What is AIDL in Android development?
Ans. 
AIDL stands for Android Interface Definition Language, used for inter-process communication in Android development.
• AIDL is a tool used to define the programming interface that clients and servers use to communicate with each other in Android.

• It allows different Android components to communicate with each other across different processes.

• AIDL files define the methods that can be called remotely, along with the data type
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Q4. Working experience with JNI
Ans. 
JNI stands for Java Native Interface, used to integrate Java code with native code written in languages like C/C++.
• Experience in writing Java code that interacts with native code through JNI

• Understanding of how to create and use JNI libraries

• Knowledge of passing data between Java and native code using JNI functions
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Q5. What is a service?
Ans. 
A service is a piece of code that performs specific tasks or functions to support the overall functionality of a software application.
• Services are often used for tasks such as data processing, communication with external systems, or background tasks.

• Examples of services include web services, REST APIs, and microservices.

• Services can run independently of the user interface and can be accessed by multiple components with
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Q6. Difference between Threads and Coroutines.
Ans. 
Threads are independent sequences of execution within a process, while coroutines are cooperative routines that can pause and resume.
• Threads are managed by the operating system, while coroutines are managed by the programmer.

• Threads run concurrently and can execute in parallel on multiple cores, while coroutines are typically single-threaded.

• Threads have their own stack and memory space, while coroutines share the same...read more
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Q7. How we can perform background tasks in Android?
Ans. 
Background tasks in Android can be performed using services, AsyncTask, JobScheduler, or WorkManager.
• Use Services for long-running tasks in the background

• AsyncTask for short background tasks that need to interact with the UI

• JobScheduler for deferrable background tasks that require network connectivity

• WorkManager for tasks that need to run reliably across different Android versions
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Q1. Salary kitna hoga
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Q2. Dhanbad me hi job chiya
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Q3. Salary 22000 to 25000 chiye
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Q4. Dhanbad job inters
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Q5. 8 years experience automobile
Ans. 
Yes, I have 8 years of experience working with automobiles.
• I have extensive knowledge of automobile mechanics and maintenance.

• I am skilled in operating various types of machinery used in automobile manufacturing.

• I have experience in troubleshooting and repairing automotive equipment.

• I am familiar with safety protocols and regulations in the automotive industry.
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Q1. More focused on what my past company does, rather than my skills
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Q1. This was a good technical discussion with an engineering manager.
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Q1. Final interview with the Hiring manager, was interested more in what position I fit in.
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Q1. Absolutely irrelevant questions like asking about my family.
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Basic Logical & Reasoning based questions

Q1. What is BMS, what are the basic components of a BMS.
Ans. 
BMS stands for Battery Management System. It is a system that manages and monitors the performance of a battery.
• Basic components of a BMS include battery monitoring unit, battery control unit, and battery charger.

• Battery monitoring unit measures voltage, current, temperature, and state of charge of the battery.

• Battery control unit manages the charging and discharging of the battery to optimize performance.

• Battery charg...read more
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Q2. What is MCU & Motor, basic structure of MCU & Motor
Ans. 
MCU stands for Microcontroller Unit and Motor is a device that converts electrical energy into mechanical energy.
• MCU is a small computer on a single integrated circuit used to control other devices.

• Motor is a machine that converts electrical energy into mechanical energy.

• Basic structure of MCU includes CPU, memory, input/output ports, timers, etc.

• Basic structure of Motor includes stator, rotor, bearings, and shaft.

• Exam...read more
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Q3. What do you understand by Contol Panel
Ans. 
A control panel is a device or interface used to control and monitor various systems or equipment.
• A control panel typically consists of buttons, switches, dials, and indicators for user interaction.

• It is commonly used in industrial settings to control machinery or processes.

• Control panels can also be found in consumer electronics, such as microwave ovens or washing machines.

• They are often designed to be user-friendly a
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Q4. Difference between LFP & NMC
Ans. 
LFP is Lithium Iron Phosphate and NMC is Lithium Nickel Manganese Cobalt Oxide. Both are types of lithium-ion battery chemistries.
• LFP (Lithium Iron Phosphate) is known for its high thermal and chemical stability, making it safer than other lithium-ion chemistries.

• NMC (Lithium Nickel Manganese Cobalt Oxide) offers higher energy density and longer lifespan compared to LFP.

• NMC batteries are commonly used in electric vehic...read more
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Q5. What is thermistor, diode, what's the difference between unidirectional & bi directional elements.
Ans. 
A thermistor is a type of resistor whose resistance changes significantly with temperature, while a diode is a semiconductor device that allows current to flow in one direction only.
• Thermistor: resistor with temperature-dependent resistance (ex. NTC thermistor)

• Diode: semiconductor device allowing current flow in one direction (ex. silicon diode)

• Unidirectional element: allows current flow in one direction only (ex. diod...read more
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Check if a tree id symmetric
check if a string contains valid parenthesis matching

Q1. High level system design of Book My show
Ans. 
Book My Show is a high-level system for booking movie tickets and event tickets online.
• Users can search for movies or events, view showtimes, and book tickets online.

• The system should handle user authentication, payment processing, and ticket confirmation.

• It should also include features like seat selection, seat availability updates, and booking history.

• The system should have a database to store movie/event information
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Q2. Scalability related questions
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Q1. Past project discussion
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Q2. Talk about the most challenging technical feature you implemented
Ans. 
Implemented a real-time collaborative editing feature using WebSockets
• Designed a scalable architecture to handle concurrent edits from multiple users

• Implemented conflict resolution algorithms to ensure data consistency

• Utilized WebSockets for bi-directional communication between clients and server
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