10+ Ambuja Cements Interview Questions and Answers

Designing a shaft under bending, torsion and axial loads using Tresca or Von-Mises theory for ductile material.

• Shaft design involves considering the effects of bending, torsion, and axial loads.

• Tresca theory assumes that yielding occurs when the maximum shear stress in a material reaches a critical value.

• Von-Mises theory assumes that yielding occurs when the equivalent stress in a material reaches a critical value.

• Ductile materials are those that can undergo significant plast...read more

Resultant stiffness of two equal parts of a cut spring attached in parallel is 4K.

• When two springs are attached in parallel, the resultant stiffness is the sum of their individual stiffness.

• The stiffness of a spring is directly proportional to its length and inversely proportional to its cross-sectional area.

• Therefore, when a spring of length L and stiffness K is cut into two equal parts, each part will have a length of L/2 and a stiffness of 2K.

• When these two parts are attac...read more

The natural frequency of a simple mass system with the mass of the spring considered.

• Natural frequency is the frequency at which a system oscillates without any external force.

• The formula for natural frequency is sqrt(k/m)

• Where k is the spring constant and m is the mass of the system.

• The mass of the spring is added to the total mass of the system.

• Example: A mass of 2 kg is attached to a spring with a spring constant of 10 N/m. The mass of the spring is 0.5 kg. The natural fre...read more

Different ways to operate a system above its natural frequency

• Adding mass to the system

• Changing the stiffness of the system

• Applying external force to the system

• Using active control techniques

• Using passive control techniques

• Using hybrid control techniques

The first natural frequency of a semi-definite system is zero, which represents rigid body motion.

• The first natural frequency of a system is the frequency at which it oscillates without any external force applied.

• A semi-definite system has one or more degrees of freedom that are constrained, resulting in rigid body motion.

• The first natural frequency of a semi-definite system is always zero, regardless of the number of degrees of freedom.

• Examples of semi-definite systems inclu...read more

Hydrostatic state of stress is when stress is applied uniformly in all directions. The theory of failure used is Maximum Shear Stress Theory.

• Hydrostatic state of stress occurs when stress is applied uniformly in all directions.

• It is characterized by a state of zero shear stress.

• The theory of failure used for hydrostatic stress is Maximum Shear Stress Theory.

• This theory states that failure occurs when the maximum shear stress in a material exceeds the shear strength of the mat...read more

ABC analysis is a material management technique that categorizes inventory items into three categories based on their importance.

• ABC analysis categorizes inventory items into A, B, and C categories based on their value and importance

• Category A items are high value items that require tight control and frequent monitoring

• Category C items are low value items that require less attention and can be ordered less frequently

• Example: A hospital using ABC analysis to prioritize medical...read more

I have experience in various utilities such as project management tools, communication software, and data analysis tools.

• Proficient in project management tools such as Asana and Trello

• Skilled in communication software such as Slack and Zoom

• Experienced in data analysis tools such as Excel and Tableau

• Familiar with programming languages such as Python and SQL

I have experience in general assembly work.

• I have worked in a factory assembling electronic components.

• I am familiar with using hand tools and power tools.

• I have experience working in a team to meet production goals.

I have experience in assembling automobile parts and components.

• Assembled engines, transmissions, and suspension systems.

• Followed blueprints and schematics to ensure proper assembly.

• Inspected finished products for quality assurance.

• Worked with a team to meet production goals and deadlines.

SFD and BMD are diagrams used to show the variation of shear force and bending moment along the length of a beam.

• SFD (Shear Force Diagram) shows the variation of shear force along the length of a beam.

• BMD (Bending Moment Diagram) shows the variation of bending moment along the length of a beam.

• SFD and BMD are essential for analyzing the internal forces in a beam and designing appropriate supports and reinforcements.

• Example: For a simply supported beam with a point load at the...read more

One lean methodology is 5S, which focuses on organizing the workplace for efficiency and effectiveness.

• 5S stands for Sort, Set in Order, Shine, Standardize, and Sustain.

• It involves organizing the workplace by removing unnecessary items, arranging necessary items for easy access, cleaning and maintaining the workspace, setting standards for organization, and sustaining the improvements.

• Example: Implementing 5S in a warehouse by decluttering, labeling storage areas, regularly c...read more

Find the largest sub string in a given string.

• Iterate through the string and check for all possible substrings

• Keep track of the length of each substring and update the maximum length found

• Return the largest substring found

P2P cycle stands for Procure to Pay cycle, which is the process of obtaining goods or services from a supplier to making payment for them.

• P2P cycle starts with the need for a product or service, followed by requisition, approval, purchase order creation, goods receipt, invoice receipt, and ends with payment to the supplier.

• It involves multiple steps such as supplier selection, negotiation, contract management, and invoice processing.

• Efficient P2P cycle helps in reducing costs...read more