Orient Cement Technical Engineer Interview Questions and Answers

Technical questions related to domain.

Q1. What is carbonation.
Ans. 
Carbonation is the process of dissolving carbon dioxide gas in a liquid.
• Occurs naturally in carbonated mineral water

• Used in the production of carbonated beverages

• Can affect the pH of a liquid

• Can cause corrosion in concrete structures
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Q1. What is your family background?
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Q2. What are your salary expectations?
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Q3. Why should we hire you?
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Q4. Why are you looking for a change?
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Q5. What are your strengths and weaknesses?
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Q6. Tell me about yourself.
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Pratical test by Auto level.

Q1. Cement type and physical properties
Ans. 
Cement types vary based on physical properties such as strength, setting time, and composition.
• There are different types of cement such as Portland cement, slag cement, and fly ash cement.

• Physical properties include compressive strength, setting time, and fineness.

• Composition of cement includes clinker, gypsum, and other additives.

• Different types of cement are used for specific applications such as construction, road b...read more
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Q2. Concrete technology
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Q1. About cement Properties
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Q1. What is Heat of hydration?
Ans. 
Heat of hydration is the heat released during the chemical reaction when water is added to cement or concrete.
• Exothermic Reaction: The hydration of cement is an exothermic process, meaning it releases heat as the chemical bonds form.

• Temperature Rise: The heat generated can lead to a significant temperature rise in large concrete pours, which can affect curing.

• Hydration Stages: The heat of hydration occurs in stages, wi...read more
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Q2. What are the implications of the heat of hydration in construction materials?
Ans. 
The heat of hydration affects the temperature, strength, and durability of concrete during curing, impacting construction performance.
• Temperature Rise: The heat generated during hydration can lead to thermal cracking in large concrete pours, necessitating temperature control measures.

• Strength Development: Proper management of hydration heat can enhance the early strength of concrete, which is crucial for construction s...read more
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Q3. What methods can be used to cure concrete without the use of water?
Ans. 
Concrete can be cured without water using methods like curing compounds, covering, and heat application to retain moisture.
• Curing Compounds: These are chemical solutions applied to the surface of concrete to form a membrane that retains moisture, such as curing agents containing wax or resins.

• Covering with Blankets: Using wet burlap or plastic sheeting can help retain moisture and prevent evaporation, ensuring proper c...read more
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Q1. About my self and Expectations!
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Q1. Previous working experience, and all about your working related in previous company,
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Q1. Negotiation on Salary.
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