Atlas Copco Interview Questions, Process, and Tips

Q1. Basics of Engineering Mechanical concepts
Add your answer
Q2. Diploma Project
Add your answer

Q1. Different units of pressure
Ans. 
Units of pressure include pascal, bar, atmosphere, and psi.
• Pascal (Pa) is the SI unit of pressure

• Bar is commonly used in meteorology and scuba diving

• Atmosphere (atm) is the average pressure at sea level on Earth

• Pounds per square inch (psi) is used in engineering and automotive industries
Answered by AI
Add your answer
Q2. Failure stress for spring
Ans. 
Failure stress for spring is the maximum stress a spring can withstand before permanent deformation or breakage.
• Failure stress is determined by the material properties of the spring.

• Factors affecting failure stress include material type, manufacturing process, and design considerations.

• Examples of failure stress for springs include tensile strength, yield strength, and ultimate strength.
Answered by AI
Add your answer
Q3. Sub-type or specific failure stress for springs
Ans. 
Sub-type or specific failure stress for springs can include yield stress, ultimate tensile stress, fatigue stress, etc.
• Different types of springs may have different failure stresses

• Yield stress is the point at which a material begins to deform plastically

• Ultimate tensile stress is the maximum stress a material can withstand before failure

• Fatigue stress is the stress level at which a material fails after repeated loadin
Answered by AI
Add your answer
Q4. Synchronous speed defination and formula
Ans. 
Synchronous speed is the speed at which the magnetic field rotates in a synchronous motor.
• Synchronous speed is determined by the frequency of the power supply and the number of poles in the motor.

• Formula for synchronous speed: Ns = 120f / P, where Ns is synchronous speed in RPM, f is frequency in Hz, and P is number of poles.

• For example, a 4-pole motor connected to a 60 Hz power supply would have a synchronous speed of
Answered by AI
Add your answer
Q5. Types of stresses and examples of each
Ans. 
Types of stresses include tensile, compressive, shear, bending, and torsional.
• Tensile stress: pulling force that stretches material apart (e.g. stretching a rubber band)

• Compressive stress: pushing force that squeezes material together (e.g. pressing on a spring)

• Shear stress: force that causes layers of material to slide past each other (e.g. cutting paper with scissors)

• Bending stress: combination of tensile and compres...read more
Answered by AI
Add your answer
Q6. Difference between stress and pressure
Ans. 
Stress is internal resistance to deformation, while pressure is force applied over an area.
• Stress is a measure of the internal resistance of a material to deformation under an applied force.

• Pressure is the force applied perpendicular to the surface of an object per unit area.

• Stress is a tensor quantity, while pressure is a scalar quantity.

• Examples: A rubber band under tension experiences stress, while a balloon filled
Answered by AI
Add your answer

A general discussion focusing predominantly on current affairs.

Q1. Under which stress spring fails?
Ans. 
A spring fails under stress beyond its elastic limit.
• A spring fails when it is subjected to stress beyond its elastic limit.

• The elastic limit is the maximum stress a spring can withstand without permanent deformation.

• Factors affecting the failure of a spring include material properties, design, and operating conditions.

• Examples of spring failure include fracture, fatigue, and creep.

• Fracture occurs when the spring is su...read more
Answered by AI
Add your answer
Q2. What is synchronous speed of motor?
Ans. 
Synchronous speed of a motor is the speed at which the rotating magnetic field produced by the stator rotates.
• It is determined by the number of poles and frequency of the power supply.

• It is the speed at which the motor would run if there was no load or slip.

• It is expressed in revolutions per minute (RPM).
Answered by AI
Add your answer

MCQ of programming languages - c/c++/Python , basic DS and OS questions

Q1. DS and programming language questions
Add your answer

Q1. Project level discussion and questions
Add your answer

Q1. Tell me about yourself
Add your answer
Q2. What is mechanical design
Ans. 
Mechanical design is the process of creating physical products and systems using engineering principles and techniques.
• Involves designing components and assemblies for machines, vehicles, structures, etc.

• Requires knowledge of materials, manufacturing processes, and CAD software.

• Focuses on functionality, safety, and efficiency of the design.

• Examples include designing a car engine, a robotic arm, or a bridge structure.
Answered by AI
Add your answer
Q3. What is shear stress
Ans. 
Shear stress is a type of stress that acts parallel to a surface, causing layers of material to slide past each other.
• Shear stress is caused by forces applied parallel to a surface, leading to deformation.

• It is calculated as force divided by the area over which the force is applied.

• Shear stress is commonly seen in materials like fluids, where layers move at different speeds.

• Examples include cutting paper with scissors,...read more
Answered by AI
Add your answer
Q4. What are categories of strength in machine design
Ans. 
Categories of strength in machine design include static strength, fatigue strength, impact strength, and toughness.
• Static strength: Ability to withstand a constant load without breaking.

• Fatigue strength: Ability to withstand repeated loading over time.

• Impact strength: Ability to withstand sudden shocks or impacts.

• Toughness: Ability to absorb energy and deform without fracturing.
Answered by AI
Add your answer

Good question based on LR, DI, QA

Q1. Basic HR interview based on your previous experience
Add your answer
Q2. How will your expertise will help company, why you want to join AC
Add your answer