Kellogg Brown and Root Mechanical Technician Interview Questions and Answers

Q1. CNC and automation assy
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Q1. What is Accenture
Ans. 
Accenture is a global professional services company providing strategy, consulting, digital, technology, and operations services.
• Global professional services company

• Offers strategy, consulting, digital, technology, and operations services

• Works with clients across various industries
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Q2. What is AutoCAD
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AutoCAD is a computer-aided design software used by engineers and architects to create 2D and 3D drawings and models.
• AutoCAD is widely used in various industries such as architecture, engineering, and construction.

• It allows users to create precise drawings and models with tools like lines, circles, and arcs.

• Users can also add dimensions, annotations, and text to their designs.

• AutoCAD supports both 2D and 3D design capa...read more
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Q3. What is contributing
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Contributing factors in mechanical engineering involve various elements that impact the design, development, and operation of mechanical systems.
• Materials used in construction

• Environmental conditions

• Budget constraints

• Regulatory requirements

• Technological advancements

• Safety considerations
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Q4. What is ambition
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Ambition is a strong desire to achieve something, often accompanied by determination and hard work.
• Ambition is the driving force behind setting and achieving goals.

• It involves a strong desire to succeed and willingness to put in the necessary effort.

• Ambition can lead to personal growth, career advancement, and overall success.

• Examples include striving for a promotion at work, starting a business, or pursuing higher edu...read more
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Q5. What is CATIA example briefly
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CATIA is a CAD software used for designing and engineering in various industries.
• CATIA is a powerful 3D modeling software used in industries like automotive, aerospace, and manufacturing.

• It allows engineers to design, simulate, and analyze products before they are physically created.

• CATIA can be used for creating complex surfaces, assemblies, and detailed drawings.

• It is commonly used for designing cars, airplanes, and ...read more
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Q1. Describe your most recent Projects.
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Designed and implemented a new cooling system for a manufacturing plant.
• Researched different cooling technologies and their efficiency

• Collaborated with a team of engineers to design the system layout

• Performed simulations to optimize the cooling system performance

• Managed the installation and testing of the new system
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Q2. Explain Design Methodology
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Design methodology is a systematic approach to solving engineering problems by following a series of steps.
• Design methodology involves defining the problem, researching, brainstorming solutions, selecting the best solution, prototyping, testing, and refining.

• It helps ensure that the final product meets the desired requirements and functions effectively.

• Examples of design methodologies include Six Sigma, Lean Manufactur
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Q3. Explain 3,2,1 principle of GD &t
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The 3,2,1 principle of GD&T is a method used to establish a datum reference frame for geometric dimensioning and tolerancing.
• 3 points are used to establish a datum plane, 2 points to establish a datum line, and 1 point to establish a datum point.

• The 3,2,1 principle ensures that the part is securely located and oriented in a consistent manner for measurement and manufacturing processes.

• Datum features are used as referen...read more
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Displacement velocity and acceleration diagram when the followers moves with simple harmonic motion

Q1. What is surface
Ans. 
Surface refers to the outermost layer or boundary of an object or material.
• Surface is the area that is exposed to the surrounding environment.

• It can be smooth, rough, porous, reflective, or absorbent.

• Examples include the surface of a table, the skin's surface, or the surface of a lake.
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Q2. What is hardness
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Hardness is a measure of a material's resistance to deformation, scratching, or abrasion.
• Hardness is a physical property of materials.

• It is typically measured using tests like the Mohs scale for minerals or the Rockwell scale for metals.

• Materials with higher hardness values are more resistant to wear and scratching.

• Hardness can be influenced by factors such as composition, microstructure, and processing.

• Examples of har...read more
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Q1. Affinity laws for pump
Ans. 
Affinity laws describe the relationship between pump performance and speed, flow rate, and head.
• Affinity laws state that if the speed of a pump is changed, the flow rate and head will also change proportionally.

• The laws can be used to predict the performance of a pump at different speeds without having to conduct actual tests.

• The three affinity laws are: 1) Flow rate is proportional to speed, 2) Head is proportional to...read more
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Q2. How to calculate NPSH
Ans. 
NPSH is calculated by subtracting the vapor pressure of the fluid from the absolute pressure at the pump suction.
• NPSH stands for Net Positive Suction Head.

• It is a measure of the pressure required at the suction of a pump to avoid cavitation.

• NPSH is calculated by subtracting the vapor pressure of the fluid from the absolute pressure at the pump suction.

• NPSH is important to ensure the pump operates efficiently and does n...read more
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Q3. How to calculate total head required for a pump
Ans. 
Total head required for a pump can be calculated using Bernoulli's equation
• Determine the flow rate required

• Calculate the friction loss in the piping system

• Determine the elevation difference between the pump and the discharge point

• Add the three values to get the total head required

• Consider any additional losses due to fittings or valves
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Q4. Standard oxygen transfer efficiency for fine bubble diffusers
Ans. 
Standard oxygen transfer efficiency for fine bubble diffusers is typically around 30-40%.
• Fine bubble diffusers are commonly used in wastewater treatment plants to transfer oxygen to the water.

• Factors that can affect oxygen transfer efficiency include bubble size, diffuser design, and water temperature.

• Efficiency can be improved by optimizing these factors and ensuring proper maintenance of the diffusers.

• Typical oxygen ...read more
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Q5. Pipe material for 48% NaOH
Ans. 
The recommended pipe material for 48% NaOH is high-density polyethylene (HDPE) or polyvinyl chloride (PVC).
• 48% NaOH is a highly corrosive substance that can cause damage to certain pipe materials.

• HDPE and PVC are resistant to the corrosive effects of NaOH and are commonly used for transporting this chemical.

• Other materials such as steel or copper should be avoided due to their susceptibility to corrosion.

• The temperatur...read more
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Q6. How to design a wet well pumping station
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Designing a wet well pumping station involves several steps and considerations.
• Determine the flow rate and head requirements

• Select appropriate pumps and piping

• Design the wet well and sump

• Include safety features such as alarms and backup power

• Consider maintenance and accessibility

• Ensure compliance with regulations and standards
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Q7. Accessories used in a pump suction and discharge line
Ans. 
Accessories used in a pump suction and discharge line
• Strainers or filters to prevent debris from entering the pump

• Valves to control the flow of fluid

• Pressure gauges to monitor the pressure

• Flanges to connect the pump to the piping system

• Flexible connectors to absorb vibrations

• Check valves to prevent backflow

• Expansion joints to compensate for thermal expansion

• Flow meters to measure the flow rate
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Q8. Which pipe material is good for NaCl 2500 ppm fluid and why?
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Duplex stainless steel is good for NaCl 2500 ppm fluid due to its high corrosion resistance and strength.
• Duplex stainless steel has a high resistance to corrosion and pitting

• It has a high strength and toughness

• Other materials like carbon steel and copper alloys may corrode in NaCl solutions
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Q9. Gradient required for free flow in a sewage pipe
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The gradient required for free flow in a sewage pipe depends on the pipe diameter, flow rate, and type of material used.
• The gradient should be steep enough to ensure that the sewage flows freely without any blockages or backups.

• The gradient is typically expressed as a percentage or ratio of the vertical drop to the horizontal distance.

• For example, a gradient of 1:100 means that for every 100 meters of horizontal distan...read more
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Engineering core sub

Q1. Stress and strain curve
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Q2. Material knowledge
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