Wipro PARI Control Engineer Interview Questions and Answers

Q1. General mechanical strength, gd&t, previous done project roles
Ans. Should have full knowledge on above
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Q1. Same as above, no change
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Q1. After shortlisting of resume, there was a technical interview -1 followed by an interview with manager for technical analysis Next was hr round.
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Q2. Design related questions on som, mechanical designs and the application of these concepts in your previous experience
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Application of technical knowledge in your previous experience

Q1. Engineering mechanics
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Q2. Strength of materials
Ans. 
Strength of materials refers to the ability of a material to withstand external forces without breaking or deforming.
• Strength of materials is an important concept in engineering and design.

• It involves analyzing the stresses and strains that a material may experience under different conditions.

• Factors that affect strength of materials include material properties, loading conditions, and geometry.

• Examples of materials wi...read more
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Q3. Previous projects
Ans. 
I have worked on various projects including designing automotive components and developing consumer electronics.
• Designed and developed a new suspension system for a sports car, improving handling and ride comfort.

• Collaborated with a team to design and prototype a smart home automation system, integrating various devices and sensors.

• Created 3D models and conducted simulations to optimize the aerodynamics of a commercial...read more
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Q4. Geometric dimension and tolerancing
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Q1. Previous experience
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Q2. Previous projects
Ans. 
Developed a smart home automation system
• Designed and implemented a user-friendly interface for controlling home appliances

• Integrated various sensors and devices to automate tasks such as turning off lights when no one is in the room

• Utilized machine learning algorithms to predict user behavior and adjust settings accordingly
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Q3. Communication skills
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Q1. Communication skills
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Q2. Relocation, salary negotiation
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Q1. Questions on achievements and past experience mentioned in resume
Ans. Explained what was my role and responsibilities. They check how your interest was into the projects you were involved.
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Q1. What is PLC (Programmable logic controller)?
Ans. 
PLC is a digital computer used for automation of electromechanical processes in industries.
• PLC is a hardware device that receives inputs from sensors and other devices, processes them using a program, and then generates outputs to control machines or processes.

• It is used in industries for automation of various processes such as assembly lines, packaging, and material handling.

• PLCs can be programmed using ladder logic, ...read more
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Q2. Programmable logic controller
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Q3. What are the different types of valves?
Ans. 
Valves are devices used to control the flow of fluids or gases. There are several types of valves used in different applications.
• Gate valves

• Globe valves

• Ball valves

• Butterfly valves

• Check valves

• Diaphragm valves

• Needle valves

• Pinch valves

• Pressure relief valves

• Solenoid valves
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Q1. Calculations for selecting the pneumatic cylinders, load withstand, bearings, gears, hydraulics and lm guides??
Ans. 
Calculations for selecting components like pneumatic cylinders, bearings, gears, hydraulics, and lm guides involve considering load requirements, operating conditions, and safety factors.
• Determine the load requirements for each component based on the application

• Consider the operating conditions such as speed, temperature, and environment

• Calculate the safety factors to ensure the components can withstand unexpected load...read more
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Q2. How do we select materials and on what basics??
Ans. 
Materials selection is based on factors like mechanical properties, cost, availability, and environmental impact.
• Consider the mechanical properties required for the application (e.g. strength, stiffness, toughness)

• Evaluate the cost of materials and compare it to the budget for the project

• Assess the availability of materials in the required quantity and timeframe

• Take into account the environmental impact of the material
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Q1. What is the current unit?
Ans. 
The current unit refers to the standard unit of measurement being used in a particular context.
• The current unit can vary depending on the field or industry, such as inches in construction or Celsius in weather forecasting.

• It is important to clarify the current unit to ensure accurate communication and data analysis.

• Examples of current units include meters for length, kilograms for weight, and seconds for time.
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Q2. What is the resistance unit?
Ans. 
The resistance unit is the ohm (Ω), which measures the opposition to the flow of electric current.
• The resistance unit is measured in ohms (Ω)

• It represents the opposition to the flow of electric current

• Resistance can be calculated using Ohm's Law: R = V/I, where R is resistance, V is voltage, and I is current
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Q1. Basic Self introduction
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