Mecon Interview Questions, Process, and Tips for Experienced

Motor bearings can be damaged due to various reasons such as lack of lubrication, contamination, overloading, misalignment, or improper installation.

• Lack of lubrication can cause increased friction and heat, leading to bearing failure.

• Contamination from dirt, dust, or moisture can accelerate wear and tear on the bearings.

• Overloading the motor can put excessive stress on the bearings, causing them to fail prematurely.

• Mi...read more

VFD controls motor speed by varying frequency, while soft starter reduces voltage during motor start to limit current.

• VFD adjusts motor speed by changing frequency of input power

• Soft starter limits current during motor start by reducing voltage

• VFD provides precise control over motor speed and torque

• Soft starter is simpler and cheaper option for reducing motor start-up current

• VFD is more energy efficient compared to sof

Electrostatic Tar Precipitator uses electrostatic forces to remove tar particles from gas streams.

• Uses high voltage to ionize gas particles

• Charged particles are attracted to oppositely charged plates

• Tar particles stick to plates and are removed

• Commonly used in industrial applications like power plants and refineries

Earthing is the process of connecting the non-current carrying part of electrical equipment to the earth, while grounding is the process of connecting the current carrying part of electrical equipment to the earth.

• Earthing is used to protect against electrical shock by providing a path for fault currents to flow safely into the ground.

• Grounding is used to ensure proper functioning of electrical systems by providing a r...read more

Main causes of communication failure in DCS include network issues, hardware failures, software glitches, and human error.

• Network issues such as poor connectivity or network congestion can lead to communication failure.

• Hardware failures like malfunctioning cables, routers, or switches can disrupt communication.

• Software glitches in the DCS system can cause communication breakdowns.

• Human error, such as incorrect configur...read more

HV transmission lines are not grounded to prevent unwanted current flow and ensure safety.

• HV transmission lines operate at high voltages, typically above 69 kV, to efficiently transmit electricity over long distances.

• Grounding HV transmission lines can lead to unwanted current flow, power losses, and safety hazards.

• Insulation and proper design of HV transmission lines help prevent electrical faults and ensure reliable ...read more

Amendment bill is a change or addition to an existing bill, while supply and adjust bill is a bill that authorizes the government to spend money.

• Amendment bill involves making changes or additions to an existing bill, while supply and adjust bill authorizes government spending.

• Amendment bill typically revises specific provisions of a bill, while supply and adjust bill deals with budget allocations.

• Basic parameters to c...read more

Proprietary indent is for specific brand products while single tender indent is for any brand products.

• Proprietary indent is used when a specific brand or product is required for a project.

• Single tender indent allows for multiple brands or products to be considered for the project.

• Proprietary indent may limit competition and increase costs, while single tender indent promotes competition and potentially lowers costs.

• Ex...read more

AutoCAD is a computer-aided design software used for creating 2D and 3D drawings, while SofiCAD is a plugin for AutoCAD specifically designed for civil engineering tasks.

• AutoCAD is a widely used CAD software for creating precise 2D and 3D drawings in various industries.

• SofiCAD is a plugin for AutoCAD that provides additional tools and features specifically tailored for civil engineering tasks such as designing roads, p...read more