Gulf Chemicals & Industrial Oils Interview Questions and Answers

Basic questions of mechanical engineering

Q1. Mostly design related questions from strength of materials
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Q1. Knowledge of 7qc tools
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Q1. Battery formula
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Relevant area synapses of preparation through PPT

Q1. Relevant field with the technical
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Q2. Experience in relevant previously work areaS
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Q1. Salary Part with negotiation
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Q2. Medical check up
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All the questions asked about hydraulic design of water distribution network and hydraulic modeling software like ICM, info works, waterGEMS and SewerGEMS etc.

It was an online CBT

Q1. What is the ratio of M30 grade
Ans. 
The ratio of M30 grade concrete is 1:1:2 (cement:sand:aggregate).
• The ratio of M30 grade concrete is 1:1:2, which means for every part of cement, we need one part of sand and two parts of aggregate.

• This ratio is commonly used in construction for structures requiring high strength and durability.

• For example, to make 1 cubic meter of M30 grade concrete, we would need 360 kg of cement, 360 kg of sand, and 720 kg of aggrega
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Q2. Tool used in surveying
Ans. 
Total Station is a commonly used tool in surveying.
• Total Station combines the functions of a theodolite and electronic distance meter to measure angles and distances.

• It is used to determine coordinates, heights, distances, and angles of points on the earth's surface.

• Total Station is essential for construction projects, land surveying, and mapping.

• Examples of Total Station brands include Leica, Trimble, and Topcon.
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Q1. Ok good best excellent
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Q2. Ok good outstanding fantastic
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Q1. What is the reason for using I-section in the design of girders?
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Medium leetcode question related to dp.

LLD round to create a cache library

Q1. Design Paytm like system
Ans. 
Design a system similar to Paytm for online payments and transactions.
• Implement user authentication and authorization for secure transactions

• Develop a user-friendly interface for easy navigation and transactions

• Integrate various payment options like credit/debit cards, net banking, UPI, and wallets

• Implement a robust backend system to handle transactions and store user data securely
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Q2. Design Url Shortner
Ans. 
Design a URL shortener service to generate short URLs for long URLs.
• Use a unique identifier for each long URL to generate a short URL.

• Implement a mapping system to map short URLs to long URLs.

• Consider implementing features like custom short URLs, expiration dates, and analytics.

• Ensure the short URLs are unique and not easily guessable.

• Optimize the service for performance and scalability.
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Q1. Basic beaviour question.
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Q2. Design Notification Service.
Ans. 
Design a Notification Service for sending alerts to users.
• Define types of notifications (email, SMS, push notifications)

• Implement a system for users to subscribe/unsubscribe from notifications

• Include a scheduling system for sending notifications at specific times

• Consider implementing a notification history for users to view past alerts
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