Mecon Interview Questions, Process, and Tips

To reduce deformation in a beam hinged on both ends with a load applied in between, additional measures can be taken.

• Increase the beam's cross-sectional area to improve stiffness

• Use materials with higher modulus of elasticity

• Add support columns or braces to reduce bending

• Distribute the load more evenly along the beam

• Reduce the span length of the beam for better support

Types of gears include spur gears, helical gears, bevel gears, worm gears, and rack and pinion gears.

• Spur gears have straight teeth and are the most common type of gear.

• Helical gears have angled teeth for smoother and quieter operation.

• Bevel gears have cone-shaped teeth and are used to change the direction of rotation.

• Worm gears have a screw-like appearance and provide high gear reduction ratios.

• Rack and pinion gears c

Routes for making steel include the blast furnace route and the electric arc furnace route.

• Blast furnace route involves the use of iron ore, coke, and limestone to produce steel.

• Electric arc furnace route involves melting scrap steel in an electric arc furnace to produce new steel.

• Other routes include the direct reduced iron (DRI) route and the smelting reduction route.

• Each route has its own advantages and disadvantage...read more

A blast furnace is a type of metallurgical furnace used for smelting to produce industrial metals, generally iron.

• Used for smelting industrial metals

• Commonly used for producing iron

• Involves the combustion of fuel and the introduction of ore, air, and limestone

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