ROCKWOOL Maintenance Manager Interview Questions and Answers

Level was good

Q1. Pyro process effecting factors Cost reduction ideas Losses reduction activity in process Excell based tricks
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Q1. About the structure design, RCC nd steel design
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Q2. About deck foundation
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Q3. About detalling of RCC beam nd slab
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Q4. About foundation design
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Q5. About steel truss design
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Q1. Question from law
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Q2. Question from Gst
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Q1. Brief about previous work experience
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Q2. Questions regarding technical knowledge
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Q1. Discussion regarding salary
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Q1. What is the concrete
Ans. 
Concrete is a strong and durable building material made from a mixture of cement, sand, gravel, and water.
• Concrete is commonly used in construction for buildings, roads, bridges, and more

• It is known for its strength, durability, and versatility

• The ingredients of concrete include cement, sand, gravel, and water

• Concrete can be poured into molds to create various shapes and structures
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Q2. How admixture work in concrete and different type of admixture and its uses.
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Admixtures are added to concrete to alter its properties or enhance its performance. They can improve workability, durability, and strength.
• Admixtures are added to concrete during mixing to modify its properties.

• Types of admixtures include water-reducing, air-entraining, accelerating, retarding, and plasticizers.

• Water-reducing admixtures improve workability and reduce water content.

• Air-entraining admixtures create smal...read more
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Q3. Properties of construction materials
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Construction materials have various properties that affect their performance and durability.
• Strength: Ability to withstand loads without breaking or deforming (e.g. concrete, steel)

• Durability: Resistance to wear, weathering, and deterioration over time (e.g. brick, stone)

• Density: Mass per unit volume, affects weight and insulation properties (e.g. wood, foam)

• Thermal conductivity: Ability to conduct heat, important for ...read more
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Q4. How to do mix design for different grade.
Ans. 
Mix design for different grade involves determining the proportions of materials to achieve desired concrete properties.
• Identify the required grade of concrete based on project specifications.

• Select suitable materials such as cement, aggregates, and water.

• Calculate the mix proportions based on desired strength and workability.

• Perform trial mixes and adjust proportions as needed.

• Test the concrete for desired properties ...read more
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Q1. Tell me about yourself and your experience. And your roles and responsiblity
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Q1. Technical question related to our operations and our B.tech basis like how to identify the problems and how to improve our process
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Q1. Department head disscussion and knowing aboit our KPI & KRA and our last year implementatiin and achievement
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Q1. Again HR round will disscution aboit salary and our expectation
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