Nasser S. Al Hajri Corporation QA QC Engineer Interview Questions and Answers

The test is very difficult you have to complete all 20 questions which consist GC , subject related

Q1. What is the wave trape?
Ans. 
A wave trap is a device used in electrical engineering to prevent unwanted signals or frequencies from entering a system.
• Wave traps are typically used in power systems to filter out specific frequencies that can cause interference.

• They are designed to allow only desired signals to pass through while blocking unwanted signals.

• Wave traps can be used in substations, transmission lines, and other electrical systems to impr...read more
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Q2. Which types of circuit breaker use in substation
Ans. 
Types of circuit breakers used in substations include air circuit breakers, oil circuit breakers, vacuum circuit breakers, and SF6 circuit breakers.
• Air circuit breakers are commonly used in low voltage applications.

• Oil circuit breakers are used in high voltage applications.

• Vacuum circuit breakers are compact and reliable, suitable for medium voltage applications.

• SF6 circuit breakers are used in high voltage substations
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Global warming ,covid-19, current affairs

H R manager and senior Electrical Engineer group interview

Q1. 240 KV to 13.8 KV transformer and 13.8 KV to 6.6 KV transformer Auxiliary technical questions
Ans. 
The question is about auxiliary technical aspects of transformers.
• Auxiliary technical aspects include cooling systems, protection devices, and control systems.

• Examples of auxiliary technical questions could be: What type of cooling system is used in the transformers? What protection devices are installed? How are the control systems designed?

• Answers should provide details about the specific auxiliary technical aspects
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Q2. Wate is the C T and P T and gokul Relay and over had Tank all transformer Auxiliary question
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Q1. What is the procedure for selection of material, calculations and realtime experience on projects.
Ans. 
The procedure for material selection, calculations, and real-time experience in projects involves thorough research, analysis, and testing.
• Research different materials based on project requirements and constraints

• Perform calculations to determine material properties, dimensions, and feasibility

• Conduct tests and simulations to validate material selection and design choices

• Gain real-time experience through hands-on proje...read more
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Q1. As per company policy requirement condition
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Q1. As per company policy requirement
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Q1. Pvsyst losses, cable sizing, fuse derating
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Q1. All basic instrumentation technical questions
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Q2. Introduce yourself and provide experience summary
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Q1. What's the alignment methods
Ans. 
Alignment methods are techniques used to ensure proper positioning and orientation of mechanical components.
• Common alignment methods include laser alignment, dial indicator alignment, and straight edge alignment.

• Laser alignment uses a laser beam to measure and adjust the alignment of components.

• Dial indicator alignment uses a dial gauge to measure the alignment of components.

• Straight edge alignment involves using a str...read more
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Q2. Vibration analysis basics
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Q1. Introduction, experience and brief explanation about the role in previous company/project
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Q2. Technical.knowledge and experience about some specific equipments to be handled within upcoming project, technical concern, lesson learn, etc.
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