LCC Projects QC Engineer Interview Questions and Answers

Q1. Railway formation ,Field drain and structural
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Q2. Privious company job detail
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Medium range tough questions were asked

Q1. What is HIRA and types of fires
Ans. 
HIRA stands for Hazard Identification and Risk Assessment. There are four types of fires: Class A, B, C, and D.
• HIRA is a process of identifying potential hazards and assessing the risks associated with them.

• It involves identifying the hazards, evaluating the risks, and implementing control measures to mitigate the risks.

• Class A fires involve ordinary combustibles like wood, paper, and cloth.

• Class B fires involve flamma...read more
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Q2. Different types of acts used in safety
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Acts used in safety include preventive, corrective, detective, and compensatory measures.
• Preventive measures aim to avoid accidents or incidents from happening, such as safety training, equipment maintenance, and hazard identification.

• Corrective measures are taken after an accident or incident has occurred, such as first aid, repairs, and investigations.

• Detective measures involve monitoring and identifying potential ha...read more
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Q1. Manufacturing of cement, Durability of concrete, Chemical reaction of cement with water.
Ans. 
The manufacturing of cement involves chemical reactions with water, resulting in the durability of concrete.
• Cement is made by heating limestone, clay, and other materials in a kiln

• The chemical reaction between cement and water, known as hydration, results in the hardening of concrete

• The durability of concrete depends on factors such as the water-cement ratio, curing time, and quality of materials used
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Q2. Why LnT, Where do you see yourself after 5 years, SWOT analysis, About LnT
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Q3. Calculate deflection at the free end of a cantilever beam with a point load at the end
Ans. 
Calculate deflection at free end of cantilever beam with point load at end
• Use the formula: δ = (PL³)/(3EI)

• P is the point load at the end

• L is the length of the cantilever beam

• E is the modulus of elasticity of the beam material

• I is the moment of inertia of the beam's cross-sectional area

• Example: A steel cantilever beam with a length of 2 meters and a point load of 500 N at the end has a deflection of 0.104 mm
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Q4. What is camber, How do we provide camber, Steps for the construction of a Road
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Camber is the slope provided to the road surface to drain off rainwater. It is achieved by raising the center of the road surface.
• Camber is the curvature provided to the road surface to ensure proper drainage of rainwater.

• It is achieved by raising the center of the road surface.

• The amount of camber depends on the width of the road and the expected rainfall.

• The steps for the construction of a road include surveying, cle...read more
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Q5. What is an admixture, How do they affect the concrete, name various admixtures.
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Admixtures are chemicals added to concrete to enhance its properties. They affect the workability, strength, and durability of concrete.
• Admixtures are added to concrete to improve its quality and performance.

• They can affect the setting time, workability, strength, and durability of concrete.

• Examples of admixtures include water reducers, accelerators, retarders, air-entraining agents, and superplasticizers.
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Q6. What is hoop stress, How to provide reinforcement in a dome
Ans. 
Hoop stress is the stress exerted circumferentially in a cylindrical or spherical object. Reinforcement in a dome can be provided by using steel bars or mesh.
• Hoop stress is caused by the pressure inside the object and is calculated using the formula P*r/t, where P is the pressure, r is the radius, and t is the thickness of the object.

• In a dome, reinforcement can be provided by using steel bars or mesh that are placed i...read more
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Q7. What is estimation and costing, No. of bricks required in 1 m3 of brickwork, various types of contracts
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Estimation and costing involves calculating the expenses of a project. No. of bricks required in 1 m3 of brickwork depends on the size of the bricks. There are various types of contracts in construction.
• Estimation and costing involves calculating the expenses of a project, including materials, labor, and other costs.

• No. of bricks required in 1 m3 of brickwork depends on the size of the bricks used. For example, if stan...read more
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