10+ MRK Furniture and Interior Interview Questions and Answers

Surging and choking are two common operating conditions in centrifugal compressors.

• Surging occurs when the flow rate through the compressor is reduced to the point where the compressor cannot maintain a stable flow and pressure. This leads to a pulsating flow and can cause damage to the compressor.

• Choking happens when the flow rate through the compressor is increased to the point where the compressor cannot handle the volume of gas being fed into it. This results in a decreas...read more

Deaerator is placed at higher elevation to create a pressure difference for efficient removal of dissolved gases from feedwater.

• Higher elevation creates a pressure difference which aids in the removal of dissolved gases from feedwater

• This helps in preventing corrosion in the boiler system

• It also improves the efficiency of the boiler by reducing the amount of oxygen in the feedwater

Stroke length of a reciprocating compressor is the distance the piston travels from top dead center to bottom dead center.

• Stroke length is an important parameter in determining the displacement volume of the compressor.

• It is typically measured in inches or millimeters.

• For example, a reciprocating compressor with a stroke length of 4 inches will have a piston that travels 4 inches up and down within the cylinder.

• Stroke length affects the compression ratio and efficiency of the...read more

Various types of pumps with characteristics curves

• Centrifugal pumps: high flow rates, low pressure, used in HVAC systems

• Reciprocating pumps: high pressure, low flow rates, used in hydraulic systems

• Diaphragm pumps: positive displacement, used for metering and dosing applications

• Gear pumps: used for lubrication systems, constant flow rate

• Axial flow pumps: high flow rates, low head, used in irrigation systems

The range of a cooling tower typically varies based on the size and capacity of the unit.

• The range of a cooling tower can vary from small residential units to large industrial units.

• Smaller cooling towers may have a range of a few tons of cooling capacity, while larger industrial cooling towers can have a range of hundreds or even thousands of tons.

• The range of a cooling tower is typically measured in terms of cooling capacity, which is the amount of heat that can be removed ...read more

Cooling towers are heat rejection devices that use water to transfer heat from a system into the atmosphere.

• Cooling towers work on the principle of evaporation to remove heat from the water being circulated through the tower.

• The hot water is pumped to the top of the tower and distributed over the fill or packing, where it is exposed to air.

• As the water flows over the fill, some of it evaporates, which removes heat from the remaining water.

• The cooled water is then collected at...read more

Skilled maintenance requires knowledge of equipment, troubleshooting, and safety protocols.

• Knowledge of equipment and machinery

• Ability to troubleshoot and diagnose problems

• Understanding of safety protocols and regulations

• Attention to detail and ability to follow instructions

• Good communication and teamwork skills

LP dosing refers to the process of injecting a low pressure chemical solution into a system or process.

• LP dosing is commonly used in water treatment plants to add chemicals such as chlorine or coagulants to the water supply.

• It is also used in industrial processes to introduce additives or inhibitors into pipelines or equipment.

• LP dosing systems typically consist of a pump, piping, and injection point where the chemical is introduced into the system.

• The dosing rate is carefull...read more

Refrigeration cycle is a process in which refrigerant absorbs heat from a low-temperature space and rejects it in a high-temperature space.

• Refrigerant absorbs heat from the low-temperature space (evaporator)

• Refrigerant is compressed to increase its temperature and pressure

• High-temperature refrigerant releases heat in the condenser

• Refrigerant expands in the expansion valve to lower its temperature and pressure

• Cycle repeats to maintain desired temperature in the space

Transformer oil should be tested for dielectric strength, acidity, water content, and dissolved gas analysis. Significant out gases include methane, ethylene, and acetylene.

• Dielectric strength test measures the ability of the oil to withstand electric stress without breaking down.

• Acidity test determines the level of acidic compounds present in the oil, which can degrade insulation.

• Water content test checks for moisture that can reduce the dielectric strength of the oil.

• Dissol...read more

Yes, I have worked with bell curve system for PMS and believe it can be effective if implemented correctly.

• I have used the bell curve system in my previous organization for performance management.

• I believe that the bell curve system can be effective in identifying top performers and underperformers.

• However, it is important to ensure that the system is implemented fairly and transparently.

• It is also important to communicate the system clearly to employees and provide them with...read more

I tend to overthink things at times.

• I can sometimes get caught up in the details and lose sight of the bigger picture.

• I am working on improving my ability to prioritize tasks and make decisions more efficiently.

• For example, in the past, I have spent too much time researching a particular issue instead of moving forward with a solution.

A signal line diagram of a substation is a schematic representation of the electrical connections and components within the substation.

• It shows the interconnection between various devices such as transformers, circuit breakers, relays, and meters.

• The diagram includes details of control circuits, protection systems, and communication networks within the substation.

• Signal line diagrams help in understanding the flow of signals and control commands within the substation.

• They are...read more

5S activity is a systematic approach to workplace organization involving Sort, Set in order, Shine, Standardize, and Sustain.

• Sort - Remove unnecessary items from the workplace

• Set in order - Organize remaining items in a logical manner

• Shine - Clean and maintain the workplace regularly

• Standardize - Establish standards and procedures for maintaining the workplace

• Sustain - Ensure the 5S practices are consistently followed over time