Viva-Api Labs Junior Engineer Production Interview Questions and Answers

Hydraulic systems and hydraulic machines.

Q1. What is the difference between BS4 and BS6 emissions standards?
Ans. 
BS6 emissions standards are more stringent than BS4, with lower limits on emissions of pollutants like nitrogen oxides and particulate matter.
• BS6 standards have stricter limits on emissions of pollutants like nitrogen oxides (NOx) and particulate matter (PM) compared to BS4.

• BS6 compliant vehicles are required to have advanced emission control technologies like selective catalytic reduction (SCR) and diesel particulate ...read more
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Q2. What is the difference between an electric motor and an electric generator?
Ans. 
An electric motor converts electrical energy into mechanical energy to produce motion, while an electric generator converts mechanical energy into electrical energy.
• Electric motor converts electrical energy into mechanical energy

• Electric generator converts mechanical energy into electrical energy

• Electric motor is used in appliances like fans, washing machines

• Electric generator is used in power plants to generate electr
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Q3. Difference between four stroke and two stroke engine
Ans. 
Four stroke engines have separate intake, compression, power, and exhaust strokes, while two stroke engines combine intake and compression in one stroke and power and exhaust in another.
• Four stroke engines have a dedicated stroke for each of the four processes: intake, compression, power, and exhaust

• Two stroke engines combine intake and compression in one stroke and power and exhaust in another

• Four stroke engines are m...read more
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Basic problem on maths can be solve

Nice went normal daily problem

Q1. Why do you want to join company
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Q2. Biggest challenge
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Q1. Question incomplete - please add more details
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Q2. Question are incomplete - please add more details
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It was easy cognitive aptitude and reasoning qsns

Med-Hard problems given 1hr to solve for 2 qsns

Q1. Explain one of the project that you are good at
Ans. 
Developed a mobile app for tracking daily water intake
• Researched user needs and preferences for water intake tracking

• Designed user-friendly interface for inputting water consumption

• Implemented features like reminders and progress tracking

• Tested app with focus groups for feedback and improvements
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Q2. What is your long term goal
Ans. 
My long term goal is to become a senior engineer in a reputable company and eventually move into a leadership role.
• Continuously improve my technical skills and knowledge through training and certifications

• Seek opportunities for mentorship and leadership roles within the company

• Work on challenging projects to gain experience and expertise

• Build a strong professional network within the industry

• Eventually transition into a...read more
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Q1. Tell me about your self
Ans. 
I am a dedicated and experienced Production Engineer with a strong background in manufacturing processes and quality control.
• Bachelor's degree in Mechanical Engineering

• 5+ years of experience in production engineering

• Proficient in CAD software and manufacturing processes

• Implemented lean manufacturing principles to improve efficiency

• Led cross-functional teams to troubleshoot production issues
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Q2. Tell me what you know about Unix and SQL
Ans. 
Unix is a powerful operating system known for its multitasking and multi-user capabilities, while SQL is a language used for managing and querying databases.
• Unix is an operating system developed in the 1970s known for its command-line interface and flexibility.

• SQL (Structured Query Language) is a language used to communicate with databases to retrieve, update, and manage data.

• Unix commands are case-sensitive and often ...read more
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It was hard but not that much hard

Q1. Have you got any experience in coding
Ans. 
Yes, I have experience in coding with languages like Java, Python, and C++.
• I have worked on projects using Java, Python, and C++

• I have experience in writing algorithms and solving coding problems

• I have completed coding courses and participated in coding competitions
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Q2. Why you choose our company
Ans. 
I chose your company because of its reputation for innovation, strong company culture, and opportunities for growth.
• Reputation for innovation - I am impressed by the cutting-edge projects your company is known for.

• Strong company culture - I value a supportive and collaborative work environment.

• Opportunities for growth - Your company offers training programs and career advancement opportunities.
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It happened for 1 hour with basic questions

Thet ask to speak about current polltics

Q1. Tell me about yourself
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Q2. What is your expected salary
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Q1. What is mutex and it's syntax?
Ans. 
A mutex is a synchronization primitive used to control access to shared resources in a multi-threaded environment.
• Mutex is typically used to protect critical sections of code to prevent race conditions.

• Syntax for using mutex in C++: std::mutex myMutex;

• To lock a mutex: myMutex.lock();

• To unlock a mutex: myMutex.unlock();
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Q2. What is a goroutine and how it's used?
Ans. 
A goroutine is a lightweight thread managed by the Go runtime. It allows concurrent execution of functions.
• Goroutines are created using the 'go' keyword followed by a function call.

• They are used for concurrent programming in Go, allowing multiple functions to run simultaneously.

• Goroutines are more efficient than traditional threads as they have lower memory overhead and can be multiplexed onto fewer OS threads.

• Example:...read more
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DSA, Queries and logical coding