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National Detergent Company Mechanical Engineer Interview Questions, Process, and Tips
National Detergent Company Mechanical Engineer Interview Experiences
1 interview found
Anonymous
I appeared for an interview in Mar 2021.
Interview Questionnaire
7 Questions
- Q1. Biodata ay first?
- Q2. Skills
- Q3. Equipment of workshop
- Ans.
A workshop should have a variety of equipment to support mechanical engineering tasks.
Basic hand tools such as wrenches, pliers, and screwdrivers
Power tools like drills, saws, and grinders
Lifting equipment such as cranes and hoists
Machining tools like lathes, milling machines, and grinders
Welding equipment like MIG, TIG, and stick welders
Measurement tools like calipers, micrometers, and gauges
- Q4. Parts of machine
- Ans.
Parts of a machine refer to the components that make up the machine and enable it to function.
The power source, such as an engine or motor
The transmission system, including gears and belts
The control system, such as buttons and switches
The frame or chassis that supports the machine
The working components, such as pistons or blades
The lubrication and cooling systems
The safety features, such as guards and emergency stop b
- Q5. How many types of boiler
- Ans.
There are several types of boilers used in various industries and applications.
Fire-tube boilers
Water-tube boilers
Electric boilers
Condensing boilers
Package boilers
Industrial boilers
Residential boilers
High-pressure boilers
Low-pressure boilers
- Q6. Difference between diesel engine and petrol engine
- Ans.
Diesel engines are more efficient and have higher torque, while petrol engines have higher power and are more refined.
Diesel engines use compression ignition, while petrol engines use spark ignition.
Diesel engines have a higher compression ratio than petrol engines.
Diesel engines are more fuel-efficient and have better mileage than petrol engines.
Petrol engines have a higher power-to-weight ratio than diesel engines.
Pe...
- Q7. Parts of petrol engine
- Ans.
Petrol engine consists of several parts that work together to convert fuel into mechanical energy.
Cylinder block
Pistons
Crankshaft
Camshaft
Valves
Spark plugs
Fuel injectors
Oil pump
Water pump
Timing belt/chain
Interview Preparation Tips
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Interview questions from similar companies
I applied via Recruitment Consultant and was interviewed before Jan 2021. There were 4 interview rounds.
Interview Questionnaire
6 Questions
- Q1. Design Patterns
- Q2. Solid Principles
- Q3. MVC Routing
- Q4. Asp.Net WebAPI Http protocols
- Q5. SQL Server Read/Insert/Update/Delete/ queries and Sub queries
- Q6. HackerRank Test
Interview Preparation Tips
Interview Questionnaire
1 Question
- Q1. 1) Achievements
Interview Questionnaire
1 Question
- Q1. Basics questions on SAP
Interview Preparation Tips
I applied via Naukri.com and was interviewed in Sep 2021. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. Tell me about yourself??
Interview Preparation Tips
I applied via LinkedIn and was interviewed in Jun 2021. There was 1 interview round.
Interview Questionnaire
2 Questions
- Q1. Basics of Angular
- Q2. Basics of js
Interview Preparation Tips
I applied via Approached by Company and was interviewed in Dec 2021. There were 2 interview rounds.
(1 Question)
- Q1. Basic question on golang
Interview Preparation Tips
- Golang
- PHP
- Testing
I applied via Naukri.com
I don't remember Exactly the number but there was around 30 aptitude questions. The questions were very easy. Most of them was based on 3 shapes were given and we have to find the 4th shape.
There were 3 coding questions carrying 100 marks each. We have to get 100 marks for passing the test.
200 questions and 180 mins. The questions were from every domain like Java, Spring, Hibernate, AWS etc. The most frustrating part is most questions from Spring and Hibernate were XML based which is not used now. Someone long time ago had prepared the test and they have not changed any questions from beginning
(1 Question)
- Q1. Question from Java, Spring, Micro service.
(1 Question)
- Q1. Questions from Java, Spring, Hibernate, Microservice.
Interview Preparation Tips
The negative side of the company is that it has lot of support projects. Once u r tagged in a support project, there is no way u can change it before 18 months. I myself got stucked in a support project.
I applied via Recruitment Consulltant and was interviewed in Jan 2022. There were 4 interview rounds.
3 Tests (in the given order) Aptitude(30 mins)-Coding(90 mins, general coding problems)-MCQ(3Hrs, your tech specific)
(1 Question)
- Q1. 15 Min Tech interview, Rapid Fire basic Question (your tech specific)
(1 Question)
- Q1. 30 Mins Tech interview question level was medium
(1 Question)
- Q1. This was 45 mins interview level of questions was medium to tough and scenario-based questions. Ex- how will you implement pagination.
Interview Preparation Tips
I applied via Referral and was interviewed before Aug 2021. There were 6 interview rounds.
General question related to the pattern and percentage
3 question need to clear at least one question with all the test cases
(1 Question)
- Q1. General question related to the android and kotlin
(1 Question)
- Q1. This the final round of technical discussion with the senior developer
(1 Question)
- Q1. Last round with the HR for package discussion
Interview Preparation Tips
National Detergent Company Interview FAQs
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