Cotmac Electronics System Engineer Interview Questions and Answers

Q1. Subject questions related to work
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Q1. Preferred salary and notice period
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Q1. Ask questions on what is written in CV
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Q2. About the Degree final year project
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Q1. Why are u looking for new opportunity
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Q2. What is salary expectation
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Logical questions and questions based on comprehensive passage

Q1. Testing related question along with the language related question.
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Q1. Logical reasoning question.
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Q1. What do you know about the company?
Ans. 
The company is a leading technology firm specializing in system engineering solutions.
• The company has a strong reputation in the industry for its expertise in system engineering.

• They offer a wide range of services including system design, integration, and maintenance.

• They have worked with several high-profile clients in various industries such as aerospace, defense, and telecommunications.

• The company values innovation ...read more
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Q1. What are the types of AHU modes
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The types of AHU modes include cooling mode, heating mode, and ventilation mode.
• Cooling mode: AHU cools the air before circulating it throughout the building.

• Heating mode: AHU heats the air before circulating it throughout the building.

• Ventilation mode: AHU circulates fresh air throughout the building without heating or cooling.
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Q2. Difference between Heatwheel and Energy wheel
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Heatwheel and Energy wheel are both types of energy recovery ventilation systems used in HVAC systems, but they differ in their specific mechanisms and applications.
• Heatwheel uses a rotating wheel with a desiccant coating to transfer heat and moisture between incoming and outgoing air streams, while Energy wheel uses a rotating wheel with a matrix of heat-absorbing material to transfer heat only.

• Heatwheel is more effec...read more
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Q3. What to we use in primary pump systems if we don't have bypass valve
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In primary pump systems without a bypass valve, we can use a variable frequency drive (VFD) to control the pump speed.
• Use a variable frequency drive (VFD) to adjust the speed of the pump based on system demand

• VFDs can help maintain system pressure and flow without the need for a bypass valve

• VFDs can also improve energy efficiency by matching pump speed to actual system requirements
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Q4. Types of chiller operating mode
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Types of chiller operating modes include constant speed, variable speed, and hybrid mode.
• Constant speed mode: Chiller operates at a fixed speed regardless of load.

• Variable speed mode: Chiller adjusts speed based on load requirements for energy efficiency.

• Hybrid mode: Combines constant and variable speed modes for optimal performance.

• Examples: Centrifugal chillers often operate in variable speed mode for energy savings.
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Aptitude questions aswell as core subjects

Q1. Based on core subjects and projects
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Q1. Regarding location
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It was based on core knowledge

Q1. What is you name
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