Cu Built Engineers Mechanical Engg. Design Interview Questions and Answers

Q1. Which oil use Hydraulic system ?
Ans. 
Various types of oils can be used in hydraulic systems, including mineral oil, synthetic oil, and biodegradable oil.
• Mineral oil is commonly used in hydraulic systems due to its cost-effectiveness and compatibility with most systems.

• Synthetic oil is used in high-performance hydraulic systems for better temperature resistance and longevity.

• Biodegradable oil is used in environmentally sensitive areas to reduce the impact
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Q2. Which valve use in hydraulic system ?
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Various types of valves are used in hydraulic systems, including directional control valves, pressure control valves, flow control valves, and check valves.
• Directional control valves are used to control the direction of fluid flow in the system.

• Pressure control valves are used to regulate the pressure within the system.

• Flow control valves are used to control the flow rate of the fluid in the system.

• Check valves are use...read more
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Q1. They asked about refrigeration principles
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Q2. They asked about reverse osmosis
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Reasoning, Maths qualities, General knowledge

Q1. Qualification and experience related questions
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Q2. Qualification related questions for freshers
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Q3. Experience related questions for experience
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Q1. 3D modelling related
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Q2. Past experience product related
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Q1. What lern from past job
Ans. 
Learned to effectively communicate and collaborate with cross-functional teams.
• Improved communication skills by regularly attending team meetings and providing updates on project progress.

• Developed strong collaboration skills by working closely with design engineers, project managers, and production teams.

• Learned to adapt to different work styles and effectively resolve conflicts within the team.

• Implemented a new commu...read more
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Q2. Why are you changing job
Ans. 
Seeking new challenges and opportunities for growth
• Looking for a more challenging role that allows me to utilize my skills and expertise

• Seeking a company with a strong focus on innovation and cutting-edge technology

• Wanting to expand my knowledge and experience in a different industry

• Desire for career advancement and professional development

• Seeking a better work-life balance or location change
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Q1. They ask questions related to SPM design, mostly focus on Jig-fixture design.
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Q2. Machining operation,
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Q3. Selection of material,
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Q4. Types of bearings, welding
Ans. 
Types of bearings include ball, roller, plain, and magnetic. Welding methods include MIG, TIG, and stick welding.
• Ball bearings use balls to reduce friction and support radial and axial loads.

• Roller bearings use cylindrical or tapered rollers to support heavy loads.

• Plain bearings have a sliding surface and are used for low-speed and high-load applications.

• Magnetic bearings use magnetic fields to support rotating shafts.

• ...read more
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Q5. Casting process and its types
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Casting is a manufacturing process in which a liquid material is poured into a mold and allowed to solidify.
• Types of casting include sand casting, investment casting, die casting, and continuous casting.

• Sand casting involves pouring molten metal into a sand mold.

• Investment casting involves creating a wax pattern and then coating it in ceramic before pouring in the molten metal.

• Die casting involves injecting molten meta...read more
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