10+ Interview Questions and Answers

LT line refers to Low Tension line while HT line refers to High Tension line.

• LT line carries low voltage and is used for domestic and small-scale commercial purposes.

• HT line carries high voltage and is used for industrial and large-scale commercial purposes.

• LT line voltage is typically up to 440 volts, while HT line voltage is above 440 volts.

• LT lines are usually overhead lines, while HT lines can be both overhead and underground.

• Examples of LT lines include household electri...read more

We used different types of circuit breakers at the site depending on the specific requirements.

• We used air circuit breakers (ACBs) for low voltage applications.

• For medium voltage applications, we used vacuum circuit breakers (VCBs) or oil circuit breakers (OCBs).

• In high voltage installations, we used sulfur hexafluoride (SF6) circuit breakers.

• For specialized applications like generator protection, we used differential circuit breakers.

• We also employed electronic circuit break...read more

We used a stationary type batching plant at the site.

• We used a stationary type batching plant for our construction project.

• The stationary batching plant had a higher production capacity compared to mobile plants.

• It was equipped with multiple storage bins for different types of aggregates.

• The plant had a conveyor belt system to transfer the aggregates to the mixer.

• We used this type of batching plant because it provided consistent and high-quality concrete.

Earthing is the process of connecting electrical equipment or installations to the earth to prevent electric shock and protect against electrical faults.

• Earthing involves creating a connection between the electrical system and the earth.

• It is done by burying a metal conductor, such as a copper rod, in the ground.

• The metal conductor is connected to the electrical system using a wire or cable.

• Earthing provides a path for the flow of excess electrical current to the ground, prev...read more

The type of DGs used at our site are diesel generators.

• Diesel generators are commonly used as backup power sources in various industries.

• They are reliable and can provide a continuous power supply during electrical outages.

• DGs are often used in remote locations or areas with unreliable grid power.

• They require regular maintenance and fuel supply to operate efficiently.

• Examples of DGs used at our site include Cummins, Caterpillar, and Kirloskar.

The size of transformers used at the site varied depending on the specific requirements of the project.

• Transformers used at the site were of different sizes based on the power demand of the electrical system.

• For smaller projects, transformers with a capacity of around 100 kVA were used.

• For medium-sized projects, transformers with a capacity ranging from 250 kVA to 500 kVA were used.

• For larger projects, transformers with a capacity exceeding 1000 kVA were used.

• The size of the ...read more

Various instruments are used in tunnel excavation, including drilling machines, blasting equipment, and tunnel boring machines.

• Drilling machines are used to create holes in the rock or soil for explosives.

• Blasting equipment is used to break up the rock or soil.

• Tunnel boring machines are used to excavate tunnels without the need for explosives.

• Surveying instruments are used to ensure the tunnel is being excavated in the correct direction and at the correct angle.

• Monitoring ins...read more

The weight of a full length 12 mm TMT bar depends on its specific density and length.

• The weight of a TMT bar can be calculated using its density and length.

• The density of a 12 mm TMT bar is typically around 0.89 kg/m.

• To calculate the weight, multiply the density by the length of the bar in meters.

• For example, a 12 mm TMT bar with a length of 6 meters would weigh approximately 5.34 kg.

Quantity survey involves estimating and managing costs of construction projects while billing is the process of invoicing clients for work done.

• Quantity survey involves cost estimation, cost control, and cost management of construction projects.

• Billing is the process of invoicing clients for work done on a project.

• Quantity surveyors work closely with architects, engineers, and contractors to ensure that projects are completed within budget.

• Billing is a crucial part of project...read more

FIFO and LIFO are inventory management methods. FIFO stands for First In, First Out, while LIFO stands for Last In, First Out.

• FIFO means that the oldest inventory items are sold first, while LIFO means that the newest inventory items are sold first.

• FIFO is commonly used in industries with perishable goods, such as food, while LIFO is more suitable for industries with non-perishable goods.

• FIFO results in lower tax liabilities as it matches revenue with older, lower-cost invent...read more

RMR value is calculated by assigning scores to various parameters related to rock mass characteristics.

• RMR stands for Rock Mass Rating.

• It is calculated by assigning scores to six parameters: uniaxial compressive strength, rock quality designation, spacing of discontinuities, condition of discontinuities, groundwater conditions, and orientation of discontinuities.

• The scores for each parameter are added up to get the RMR value, which ranges from 0 to 100.

• RMR value is used to as...read more

M/C stands for Machine Control and is used in tunneling for precision and accuracy in excavation.

• M/C technology helps in reducing the risk of accidents and errors during excavation.

• It allows for real-time monitoring and adjustment of the excavation process.

• Examples of M/C used in tunneling include laser-guided systems and GPS-based systems.

• M/C can also be used for tunnel boring machines to ensure accurate and efficient excavation.

• Proper training and maintenance of M/C is cruc...read more

RQD stands for Rock Quality Designation, a measure of rock mass quality used in geology and engineering.

• RQD is calculated by measuring the percentage of intact rock pieces longer than 10 cm in a drill core sample.

• It is used to assess the strength and stability of rock masses for engineering projects such as tunnels, dams, and foundations.

• Higher RQD values indicate better rock quality and greater potential for stability.

• RQD values can range from 0 to 100, with 100 indicating a...read more

HR life cycle refers to the stages of an employee's journey within an organization, from recruitment to exit.

• The HR life cycle includes stages such as recruitment, onboarding, performance management, career development, and exit

• Recruitment involves sourcing, screening, and selecting candidates for open positions

• Onboarding includes orientation, training, and integration into the company culture

• Performance management involves setting goals, providing feedback, and evaluating em...read more

Types of ledger include general ledger, subsidiary ledger, and control ledger.

• General ledger contains all financial transactions of a business.

• Subsidiary ledger provides detailed information on specific accounts.

• Control ledger summarizes information from subsidiary ledgers.

• Examples: Sales ledger, Purchase ledger, Cash ledger.

Concrete mix design is the process of selecting suitable ingredients and determining their proportions to produce concrete with desired properties.

• Involves selecting the right combination of materials like cement, aggregates, water, and admixtures

• Proportions are determined based on desired strength, workability, durability, and other properties

• Testing and adjusting the mix to meet specific project requirements

• Examples of factors considered: strength requirements, exposure con...read more