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Enphase Energy Senior Mechanical Design Engineer Interview Questions and Answers
Enphase Energy Senior Mechanical Design Engineer Interview Experiences
1 interview found
I applied via LinkedIn and was interviewed in Jan 2024. There was 1 interview round.
(4 Questions)
- Q1. Explain product life cycle
- Ans.
Product life cycle refers to the stages a product goes through from introduction to withdrawal from the market.
Introduction stage - product is launched into the market
Growth stage - sales and profits increase as product gains popularity
Maturity stage - sales peak and competition increases
Decline stage - sales decrease and product may be discontinued
Examples: iPhone (introduction), Coca-Cola (maturity), VHS tapes (decli
- Q2. How do you select heatsink and fan
- Ans.
Heatsink and fan selection involves considering thermal requirements, size constraints, airflow needs, noise levels, and cost.
Consider the thermal requirements of the component being cooled
Take into account size constraints of the system
Evaluate airflow needs based on heat dissipation
Consider noise levels and select a fan with appropriate noise rating
Balance performance requirements with cost constraints
Examples: Selec...
- Q3. Explain about surface finishing implemented in your project
- Q4. Material selection process
- Ans.
Material selection process involves evaluating properties, cost, availability, and performance requirements.
Identify performance requirements such as strength, durability, and thermal conductivity
Consider cost and availability of materials
Evaluate properties like corrosion resistance, weight, and thermal expansion
Select materials based on compatibility with manufacturing processes and environmental factors
Examples: Ste...
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Mechanical Engineer Interview Questions & Answers
SAEL Industries Limited
IKKA Mishra
posted on 24 Dec 2024
(2 Questions)
- Q1. Tell me about your self
- Ans.
I am a dedicated Mechanical Engineer with a strong background in designing and implementing mechanical systems.
Graduated with a degree in Mechanical Engineering from XYZ University
Experienced in CAD software such as AutoCAD and SolidWorks
Worked on projects involving HVAC systems and industrial machinery
Skilled in analyzing and solving complex engineering problems
Strong communication and teamwork skills
- Q2. How many experience you have in Boiler Turbine,ESP,BAG FILTER EPCI
- Ans.
I have 5 years of experience in Boiler Turbine, ESP, and BAG FILTER EPCI projects.
5 years of experience in Boiler Turbine projects
Familiar with ESP (Electrostatic Precipitator) systems
Proficient in BAG FILTER EPCI (Engineering, Procurement, Construction, and Installation)
Managed various projects involving Boiler Turbine, ESP, and BAG FILTER systems
Implemented cost-effective solutions for improving efficiency
(3 Questions)
- Q1. ERECTION PROCESS OF BOILER ?
- Ans.
The erection process of a boiler involves assembling and installing all the components to create a functional boiler system.
Prepare the foundation for the boiler
Assemble the boiler components such as tubes, drums, and headers
Install the boiler on the foundation
Connect the necessary piping and valves
Test the boiler for proper functioning
- Q2. Material specification of all boiler pressure part.
- Ans.
Boiler pressure parts are typically made of carbon steel, alloy steel, or stainless steel to withstand high pressure and temperature.
Carbon steel is commonly used for lower pressure boilers
Alloy steel is used for higher pressure boilers
Stainless steel is used for corrosion resistance in boilers
Materials must meet specific standards like ASTM A516 for carbon steel
- Q3. Which welding process used in water wall panel
- Ans.
The welding process used in water wall panels is typically TIG welding.
TIG welding is commonly used for water wall panels due to its precision and clean welds
TIG welding helps prevent contamination in the weld area, which is crucial for water wall panels
Other welding processes like MIG welding or submerged arc welding may also be used depending on the specific requirements
(1 Question)
- Q1. Java question and core subject questions
(2 Questions)
- Q1. What is process gear oil replacement
- Ans.
Process gear oil replacement is the procedure of draining out old gear oil from a system and refilling it with fresh gear oil.
Drain out old gear oil from the system
Ensure proper disposal of the old gear oil
Refill the system with fresh gear oil
Follow manufacturer's guidelines for the type and amount of gear oil to be used
- Q2. What have you done major activity
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Mechanical Supervisor Interview Questions & Answers
Doosan Power Systems
Anonymous
posted on 29 Nov 2022
I applied via Walk-in and was interviewed in Oct 2022. There were 2 interview rounds.
(2 Questions)
- Q1. Esp system all activity, Maintanance activities
- Q2. Thermal powerplant Eraction Boiler maintanance
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Mechanical Maintenance Engineer Interview Questions & Answers
Steag Energy Services
Ravi Kumar
posted on 27 Jun 2022
(2 Questions)
- Q1. What is the process de-ashing the from esp to silo.
- Ans.
De-ashing process from ESP to silo involves several steps.
The ash is collected in hoppers located at the bottom of the ESP.
The ash is then transported to the silo using a pneumatic conveying system.
The ash is stored in the silo until it can be disposed of properly.
Regular maintenance of the ESP and pneumatic conveying system is necessary to ensure efficient de-ashing.
Proper safety measures must be taken during the de-a
- Q2. What is the capacity of esp hoppers.
- Ans.
The capacity of ESP hoppers varies depending on the size and model of the equipment.
ESP hoppers can range from a few hundred cubic feet to several thousand cubic feet in capacity.
The capacity can also depend on the type of material being collected in the hopper.
It is important to regularly monitor and maintain the hopper to prevent overfilling and potential equipment damage.
(1 Question)
- Q1. I will pay you only this.
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Senior Engineer Mechanical Interview Questions & Answers
Siemens Energy
Anonymous
posted on 7 Feb 2022
I applied via Referral and was interviewed in Aug 2021. There were 2 interview rounds.
(2 Questions)
- Q1. Based on project and basic fea questions.
- Q2. Fea, experiment data and root cause analysis question. Ex. If a blade of compressor fail. What could be reason and why.
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Mechanical Engineer Interview Questions & Answers
SAEL Industries Limited
Anonymous
posted on 2 Feb 2021
I applied via Referral and was interviewed in Jan 2021. There were 3 interview rounds.
Interview Questionnaire
2 Questions
- Q1. Types of Bearing & Coupling.
- Ans.
Bearings and couplings are essential components in mechanical systems.
Types of bearings: ball bearings, roller bearings, plain bearings, magnetic bearings, fluid bearings
Types of couplings: rigid couplings, flexible couplings, fluid couplings, magnetic couplings
Bearings support rotating shafts and reduce friction, while couplings connect two shafts together
Examples of bearings and couplings used in mechanical systems: ...
- Q2. Difference Between Chain Conveyor and Belt Conveyor.
- Ans.
Chain conveyors use chains to move products, while belt conveyors use belts.
Chain conveyors are more durable and can handle heavier loads than belt conveyors.
Belt conveyors are better suited for transporting smaller items and have a smoother operation.
Chain conveyors are commonly used in industries such as automotive and steel, while belt conveyors are used in industries such as food processing and packaging.
Chain conv...
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I applied via Referral and was interviewed in May 2020. There was 1 interview round.
Interview Questionnaire
2 Questions
- Q1. Explain all activities at site with following safety ruls
- Ans.
Activities at site with safety rules
Conducting regular safety inspections
Providing personal protective equipment (PPE) to workers
Ensuring proper training of workers on safety procedures
Maintaining proper signage and warnings
Implementing emergency response plans
Enforcing strict adherence to safety rules and regulations
Regularly reviewing and updating safety policies and procedures
- Q2. Handling off crains at site explain it
- Ans.
Handling off cranes at site involves proper planning, coordination and safety measures.
Ensure proper communication between crane operator and ground personnel
Inspect crane and rigging equipment before use
Ensure proper weight distribution and load capacity
Use proper hand signals and follow safety protocols
Train personnel on proper crane operation and safety measures
Examples: lifting heavy equipment, materials, or struct
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I applied via LinkedIn and was interviewed before Mar 2021. There were 3 interview rounds.
(1 Question)
- Q1. Testing Technical know-how based on your previous experience
(6 Questions)
- Q1. What are your salary expectations?
- Q2. What is your family background?
- Q3. Share details of your previous job.
- Q4. Why should we hire you?
- Q5. Why are you looking for a change?
- Q6. Tell me about yourself.
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