BIL Infratech QC Engineer Interview Questions and Answers

Q1. Soil & concrete
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Q2. What is the 20mm nominal size
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The 20mm nominal size refers to the designated size of a component or object.
• Nominal size is a standard size used for identification and classification purposes.

• In this case, the 20mm nominal size indicates that the component or object is intended to have a size of 20mm.

• It is important to note that the actual size may vary slightly due to manufacturing tolerances.

• The nominal size helps in ensuring compatibility and int...read more
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Q1. Previous experience
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Q1. 1. What is Concrete Mix Design?
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Concrete mix design is the process of determining the proportions of cement, water, aggregates, and admixtures to produce concrete with desired properties.
• Concrete mix design involves selecting the appropriate materials and determining their proportions to achieve the desired strength, workability, and durability of the concrete.

• Factors such as the type of cement, aggregate gradation, water-cement ratio, and admixtures...read more
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Q2. What is the maximum Liquid Limit & Plasticity Index allowed in earth work in embankment/subgrade soil ?
Ans. 
Liquid limit should not exceed 40% and Plasticity Index should not exceed 20% for earth work in embankment/subgrade soil.
• Liquid limit and Plasticity Index are important parameters to determine the suitability of soil for construction purposes.

• Higher values of Liquid limit and Plasticity Index indicate that the soil is more susceptible to deformation and settlement.

• For earth work in embankment/subgrade soil, the maximum...read more
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Condition monitoring engineer

Q1. Condition monitoring engineer vibration analyst
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Q2. Machinery health vibration analyst
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Q3. Vibration analysis service
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Q4. Balancing and alignment equipment health according
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Q5. Mechanical maintenance
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Q6. Rotrey equipment analysis report
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Q1. What is diesel generator, transformer & HVAC
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Diesel generator is a backup power source using diesel fuel, transformer is a device that transfers electrical energy between circuits, and HVAC is a system for heating, ventilation, and air conditioning.
• Diesel generator: provides backup power using diesel fuel, commonly used in areas with frequent power outages

• Transformer: transfers electrical energy between circuits, stepping up or down voltage levels as needed

• HVAC: ...read more
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Q2. Operation & maintenance LT pannel & HT pannel
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Q3. What is fire fighting system
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A fire fighting system is a set of equipment and procedures designed to detect, control, and extinguish fires in a building or area.
• Includes fire alarms, sprinkler systems, fire extinguishers, and fire hoses

• May also involve fire suppression systems like foam or gas

• Designed to protect lives and property in the event of a fire

• Regular maintenance and testing are crucial to ensure effectiveness
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Q4. What is DM plant
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DM plant stands for Demineralization plant, used to remove minerals and salts from water.
• DM plant is used in industries to produce demineralized water for various processes.

• It consists of ion exchange resins to remove minerals like calcium, magnesium, and salts from water.

• The process involves passing water through cation and anion exchange columns to remove ions.

• DM plant is essential in power plants, pharmaceutical ind...read more
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Q5. What is acb,vcb,mccb, mcb
Ans. 
ACB, VCB, MCCB, MCB are types of circuit breakers used in electrical systems.
• ACB stands for Air Circuit Breaker, used for high voltage applications.

• VCB stands for Vacuum Circuit Breaker, used for medium voltage applications.

• MCCB stands for Molded Case Circuit Breaker, used for low voltage applications.

• MCB stands for Miniature Circuit Breaker, used for residential and commercial applications.
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Q6. Fire fighting system
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Q7. ACB,VCB,MCCB,MCB,OCB etc
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Q1. What is the mechanism?
Ans. 
The mechanism refers to the physical or mechanical system that performs a specific function or task.
• Mechanisms are often made up of various components such as gears, levers, pulleys, and linkages.

• They are designed to convert input forces and motion into desired output forces and motion.

• Examples include a car engine, a door lock, a bicycle chain, and a robotic arm.
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Q2. What is the structure of an assembly?
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An assembly is a collection of parts or components put together to form a complete structure or machine.
• An assembly typically consists of multiple parts or components that are designed to fit together in a specific way.

• Each part in an assembly has a specific function and contributes to the overall functionality of the structure.

• Assemblies can range from simple structures like a chair to complex machines like a car or a...read more
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C6h12o6 what's this is

Q1. Root 3 what is this
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Q2. 66 conversation for Roman number
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Q1. Auxin what is theis
Ans. 
Auxin is a plant hormone that regulates growth and development.
• Auxin is responsible for cell elongation and division in plants.

• It plays a role in phototropism, gravitropism, and apical dominance.

• Examples of auxin include indole-3-acetic acid (IAA) and synthetic auxins like 2,4-D.
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Q2. Iaa what is this
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