
Kirloskar Pneumatic


40+ Kirloskar Pneumatic Interview Questions and Answers
Q1. If we give Kirloskar airend to assemble in different make of machine then tell us is it possible and if yes or no, justify your answer.
Yes, it is possible to assemble Kirloskar airend in different make of machine with certain modifications.
Modifications may be required to fit the airend properly in the machine.
The performance of the machine may be affected by the compatibility of the airend.
The warranty of the machine may be voided if the airend is not recommended by the manufacturer.
Examples of compatible machines include those from Atlas Copco, Ingersoll Rand, and Sullair.
Q2. How VFD works in in compressor and on references to take to work VFD smoothly?
VFD stands for Variable Frequency Drive and it is used in compressors to control the speed of the motor and optimize energy consumption.
VFD controls the frequency and voltage supplied to the motor, allowing it to operate at different speeds.
By adjusting the speed of the motor, VFD can match the compressor's output to the demand, resulting in energy savings.
VFD can also provide soft start and stop functions, reducing mechanical stress on the compressor.
References to take to wo...read more
Q3. How much gap you maintain between airend and housing and screw elements?
The gap between the airend and housing and screw elements should be minimal to ensure efficient operation.
The gap is typically maintained within a few micrometers to prevent air leakage.
A smaller gap ensures better compression and reduces energy losses.
Proper alignment and precision manufacturing are crucial to achieve the desired gap.
Examples of gap specifications can vary depending on the specific compressor model and manufacturer.
Regular maintenance and inspection are nece...read more
Q4. Have you handled SPM and for what purpose we use the same?
Yes, I have handled SPM (Sales Performance Management).
SPM is used to track and manage the performance of sales teams.
It helps in setting sales targets, monitoring progress, and incentivizing sales representatives.
SPM software provides tools for sales forecasting, territory management, and commission calculations.
By using SPM, organizations can improve sales effectiveness and drive revenue growth.
Example: I have used SPM to analyze sales data, identify top performers, and cre...read more
Q5. What are the recommendations and activities has to be done in pre commissioning visit?
Pre-commissioning visit requires thorough planning and execution to ensure smooth commissioning of the project.
Review project specifications and requirements
Inspect equipment and systems for compliance
Verify installation and alignment of equipment
Perform functional testing of equipment and systems
Ensure safety measures are in place
Train personnel on equipment operation and maintenance
Prepare commissioning report
Q6. What is warranty management and what do you do in warranty support?
Warranty management involves handling customer claims for repairs or replacements of products covered under warranty.
Maintaining records of warranty claims and repairs
Coordinating with service centers for repairs or replacements
Communicating with customers regarding the status of their claims
Ensuring compliance with warranty policies and procedures
Analyzing warranty data to identify trends and areas for improvement
Q7. What is your target spares sales and service for current year?
My target for spares sales and service for the current year is to increase it by 15% compared to the previous year.
My target is to increase spares sales and service by 15% compared to the previous year
I plan to achieve this by implementing targeted marketing strategies and improving customer service
I will also focus on building strong relationships with existing customers and expanding our customer base
For example, I will introduce loyalty programs and offer discounts to cust...read more
Q8. How you manager your inventory and what is inventory turn?
Inventory management involves tracking and controlling the flow of goods to ensure optimal levels and minimize costs.
Inventory management involves monitoring stock levels, tracking sales and demand patterns, and placing orders to replenish inventory.
Effective inventory management helps prevent stockouts and overstocking, reducing costs and improving customer satisfaction.
Inventory turn, also known as inventory turnover, measures how quickly a company sells and replaces its in...read more
Q9. How do you check vibration of airend and at what points and also tell me its standard? How much vibration value should be allowable to run the machine.?
To check vibration of airend, use a vibration meter at specific points. Standard varies by manufacturer. Allowable vibration value depends on machine type and application.
Use a vibration meter to check vibration of airend
Check vibration at specific points as per manufacturer's instructions
Standard for allowable vibration varies by manufacturer
Allowable vibration value depends on machine type and application
Q10. What do you do during AMC service of air compressor?
During AMC service of air compressor, we perform routine maintenance and inspections to ensure optimal performance and prevent breakdowns.
Check and replace air filters
Inspect and clean cooling system
Check and adjust belts and pulleys
Inspect and replace worn out parts
Check and adjust oil levels
Perform performance tests
Provide necessary repairs and replacements
Ensure compliance with safety regulations
Q11. What are the power calculation in air compressor?
Power calculation in air compressors involves determining the input power and the output power.
The input power is the electrical power required to run the air compressor.
The output power is the mechanical power produced by the air compressor.
The power calculation can be done using the formula: Power = Pressure x Flow Rate / Efficiency.
Pressure is measured in pounds per square inch (psi) or bar.
Flow rate is measured in cubic feet per minute (cfm) or liters per minute (lpm).
Eff...read more
Q12. How you plan your inventory for machine installed across India?
I plan inventory based on demand forecasting, lead time, and safety stock.
Analyze historical sales data and market trends to forecast demand
Consider lead time for procurement and delivery of machines
Maintain safety stock to avoid stockouts and meet unexpected demand
Collaborate with sales team to understand customer requirements and plan inventory accordingly
Use inventory management software to track inventory levels and optimize replenishment
Regularly review and adjust invent...read more
Q13. what are different measuring instruments their least count? how to use, hands-on experience on instruments
Different measuring instruments and their least count, along with hands-on experience.
Vernier caliper - 0.02 mm
Micrometer screw gauge - 0.01 mm
Dial gauge - 0.01 mm
Height gauge - 0.02 mm
Thread pitch gauge - 0.01 mm
Using instruments requires proper calibration and handling
Hands-on experience can be gained through practice and training
Q14. How will you manage inventory for After sales support of 100% imported product?
I will implement a robust inventory management system with real-time tracking and forecasting.
Implement a centralized inventory management system
Track inventory levels in real-time
Forecast demand and adjust inventory levels accordingly
Maintain good relationships with suppliers to ensure timely delivery
Regularly review inventory data to identify trends and make informed decisions
Implement a system for returns and exchanges
Train staff on inventory management best practices
Q15. What is the Compressor installation and commissioning procedure?
The compressor installation and commissioning procedure involves several steps to ensure proper functioning and efficiency.
Prepare the site for installation by ensuring a suitable foundation and proper ventilation.
Position the compressor unit and connect it to the power supply.
Install the necessary piping and connections for air intake and discharge.
Check and adjust the oil level and ensure proper lubrication.
Perform a thorough inspection of all components and connections for...read more
Q16. Commissioning and installation procedure of screw air compressor
Commissioning and installation of screw air compressor involves several steps.
Inspect the site and ensure proper foundation and ventilation
Check electrical connections and ensure proper grounding
Install air and oil piping and connect to the compressor
Fill the oil and coolant and check for leaks
Start the compressor and check for proper operation
Adjust the pressure and perform a load test
Train the operators on proper usage and maintenance
Provide a maintenance schedule and check...read more
Q17. What are the key elements of airend and how much gap should be there in screw elements?
The key elements of airend are rotors, bearings, seals, and housing. The gap between screw elements should be 0.1-0.3mm.
Airend consists of rotors, bearings, seals, and housing.
Rotors are the main components that compress the air.
Bearings support the rotors and reduce friction.
Seals prevent air leakage and maintain efficiency.
Housing encloses the airend and provides structural support.
The gap between screw elements should be 0.1-0.3mm for optimal performance.
Q18. If compressor trips with high temperature then what will be check points to resolve the issue?
Check refrigerant level, condenser coil, fan motor, and thermostat.
Check refrigerant level and add if necessary.
Clean condenser coil and ensure proper airflow.
Check fan motor for proper functioning.
Check thermostat and adjust if necessary.
Q19. If compressor trips with high ampere then what will be check points to resolve the issue?
The check points to resolve the issue of a compressor tripping with high ampere.
Check the electrical connections for loose or damaged wires
Inspect the compressor motor for any signs of overheating or damage
Verify that the compressor is receiving the correct voltage
Check the refrigerant levels and ensure they are within the specified range
Inspect the condenser coils for any blockages or dirt buildup
Check the compressor's overload protection device
Inspect the compressor's start...read more
Q20. What is CSI and you calculate the same?
CSI stands for Customer Satisfaction Index. It is a measure of how satisfied customers are with a product or service.
CSI is a metric used to assess customer satisfaction.
It helps businesses understand how well they are meeting customer expectations.
CSI can be calculated by conducting surveys or using feedback forms.
The formula for calculating CSI is: (Number of satisfied customers / Total number of customers) x 100.
For example, if a company has 500 customers and 400 of them a...read more
Q21. What are the parameters should be checked during testing of the compressor?
Parameters to check during compressor testing
Check the suction and discharge pressure
Check the oil level and quality
Check the motor amperage and voltage
Check for any abnormal noise or vibration
Check the refrigerant charge level
Check the condenser and evaporator coils for cleanliness
Check the compressor's temperature
Check the compressor's oil pressure
Check the compressor's discharge temperature
Q22. what type of welding defects are seen? measures for reducing welding defects
Welding defects include porosity, cracks, incomplete fusion, and distortion. Measures to reduce defects include proper training, inspection, and maintenance.
Porosity: caused by gas entrapment, can be reduced by proper shielding gas and electrode selection
Cracks: caused by high stress or improper cooling, can be reduced by preheating and controlling cooling rate
Incomplete fusion: caused by insufficient heat or improper technique, can be reduced by proper technique and inspecti...read more
Q23. Check point if you face high pressure alarm in compressor
Check oil level, check for leaks, check for clogged filters, check for overheating
Check the oil level in the compressor
Check for any leaks in the system
Check for clogged filters that may be restricting airflow
Check for overheating of the compressor
Inspect the pressure relief valve
Check the pressure switch settings
Inspect the cooling system
Check the drive belt tension and condition
Q24. Check points if you face high temperature alarm in compressor
Check oil level, condenser cleanliness, refrigerant charge, and fan operation.
Check the oil level in the compressor.
Ensure the condenser is clean and free of debris.
Check the refrigerant charge to ensure it is at the correct level.
Verify that the fan is operating properly.
Inspect the compressor for any signs of damage or wear.
Q25. Check point if you face high current alarm in compressor
Check for the cause of high current and take necessary actions to prevent damage to the compressor.
Check for any blockages in the suction or discharge lines
Check for any leaks in the system
Check for proper lubrication of the compressor
Check for proper voltage and amperage of the electrical supply
Check for any mechanical issues with the compressor
Take necessary actions to prevent damage to the compressor
Q26. What are the checkpoints before first start of machine?
Checkpoints before first start of machine
Inspect machine for any damage or missing parts
Ensure all safety guards and devices are in place and functioning properly
Check oil and fluid levels and fill as necessary
Verify proper electrical connections and grounding
Perform a test run to ensure proper operation
Train operators on safe and proper use of the machine
Q27. what are the principles of 5s & the importance of quality
5S principles are Sort, Set in order, Shine, Standardize, and Sustain. Quality is important to ensure customer satisfaction and business success.
Sort - eliminate unnecessary items to improve efficiency
Set in order - organize items for easy access and productivity
Shine - maintain cleanliness and prevent defects
Standardize - establish consistent processes for quality control
Sustain - continuously improve and maintain the 5S principles
Quality is important to meet customer expect...read more
Q28. What are the compressor testing standards?
Compressor testing standards ensure the quality and performance of compressors.
Compressor testing standards vary depending on the type of compressor and its intended use.
Some common testing standards include ASME PTC 10 for centrifugal compressors and API 617 for axial and centrifugal compressors.
Testing may include performance testing, vibration testing, and noise testing.
Compressor manufacturers may also have their own internal testing standards.
Testing is important to ensu...read more
Q29. Check points before fist start of air compressor
Before starting an air compressor, certain checkpoints need to be followed.
Check the oil level and add if necessary
Check the air filter and clean or replace if necessary
Check the belts and tighten if necessary
Check the drain valve and ensure it is closed
Check the pressure relief valve and ensure it is working properly
Check the electrical connections and ensure they are secure
Check the hoses and fittings for any leaks or damage
Q30. 2. How will you compare and select vendor quotation. What are their criteria.?
Vendor quotation selection involves comparing and evaluating criteria such as price, quality, delivery time, and vendor reputation.
Compare vendor quotes based on price, quality, delivery time, and vendor reputation
Evaluate vendor's past performance and customer feedback
Consider vendor's financial stability and ability to meet production demands
Assess vendor's technical capabilities and compliance with industry standards
Negotiate terms and conditions to ensure a mutually benef...read more
Q31. What is warranty claim procedure?
Warranty claim procedure is the process of making a claim for repair or replacement of a product covered under warranty.
The customer contacts the manufacturer or seller to initiate the claim process.
The customer provides proof of purchase and details of the issue with the product.
The manufacturer or seller may request additional information or inspection of the product.
If the claim is approved, the manufacturer or seller will repair or replace the product.
If the claim is deni...read more
Q32. why is spatter formed while welding
Spatter is formed while welding due to the expulsion of molten metal from the weld pool.
Spatter is caused by the high temperature of the welding process.
It can be reduced by adjusting the welding parameters such as voltage, current, and wire feed speed.
Using a welding gun with a shorter nozzle can also help reduce spatter.
Spatter can cause defects in the weld and may need to be removed before finishing.
It can also be a safety hazard if it lands on skin or clothing.
Q33. Calculate departmental objectives and how to obtain targets
To calculate departmental objectives and targets, a thorough analysis of past performance and future projections is necessary.
Review past performance data to identify areas of improvement
Set specific, measurable, achievable, relevant, and time-bound (SMART) objectives
Identify key performance indicators (KPIs) to track progress towards objectives
Develop action plans to achieve objectives and targets
Regularly monitor and evaluate progress towards objectives and adjust plans as ...read more
Q34. its importance in mechanical engineering
QA QC is crucial in ensuring the quality and reliability of mechanical engineering products and processes.
QA QC helps identify and prevent defects in mechanical engineering products and processes.
It ensures compliance with industry standards and regulations.
It helps improve efficiency and reduce costs by identifying areas for improvement.
Examples include testing and inspecting mechanical components, monitoring production processes, and conducting audits.
QA QC also plays a cri...read more
Q35. whats GD&T?
GD&T stands for Geometric Dimensioning and Tolerancing.
GD&T is a system used to define and communicate engineering tolerances.
It provides a standardized language for specifying the form, size, orientation, and location of features on a part.
GD&T uses symbols, feature control frames, and datums to convey the desired tolerances and requirements.
It ensures that parts are manufactured and inspected consistently, leading to improved quality and interchangeability.
For example, GD&T...read more
Q36. How do we calculate landed cost for import items?
Landed cost for import items is calculated by adding the cost of goods, freight charges, insurance, customs duties, and other expenses incurred until the goods reach the final destination.
Calculate the cost of goods including the purchase price, packaging, and any other related costs.
Add the freight charges, which include the cost of shipping, handling, and any other transportation costs.
Include the cost of insurance, which is usually a percentage of the total value of the go...read more
Q37. What do u know about CNC turning?
CNC turning is a machining process where a cutting tool is used to remove material from a rotating workpiece to create cylindrical parts.
CNC turning is a subtractive manufacturing process used to create cylindrical parts.
It involves a cutting tool that removes material from a rotating workpiece.
The process is controlled by a computer program that dictates the toolpath and cutting parameters.
CNC turning is commonly used in industries such as automotive, aerospace, and manufact...read more
Q38. types of welding
There are several types of welding, including MIG, TIG, Stick, and Flux-Cored welding.
MIG (Metal Inert Gas) welding uses a wire electrode and a shielding gas to join two pieces of metal together.
TIG (Tungsten Inert Gas) welding uses a tungsten electrode and a shielding gas to create a precise and clean weld.
Stick welding (also known as Shielded Metal Arc Welding) uses a consumable electrode coated in flux to create a strong bond between two pieces of metal.
Flux-Cored welding ...read more
Q39. types of fit
Types of fit include clearance fit, interference fit, and transition fit.
Clearance fit: parts have a gap between them
Interference fit: parts are pressed or forced together
Transition fit: parts have both clearance and interference
Examples: piston and cylinder, gears and shafts
Q40. What is refrigeration?
Refrigeration is the process of removing heat from a substance or space to lower its temperature.
Refrigeration is used in various industries such as food preservation, medicine, and air conditioning.
It involves the use of refrigerants, which are substances that can absorb and release heat.
The process of refrigeration involves compressing the refrigerant, condensing it into a liquid, and then expanding it to evaporate and absorb heat.
Refrigeration systems can be classified int...read more
Q41. Refrigeration cycle ?
Refrigeration cycle is a thermodynamic cycle used in refrigerators and air conditioning systems to transfer heat from a low temperature reservoir to a high temperature reservoir.
Consists of four main components: compressor, condenser, expansion valve, and evaporator
Refrigerant is compressed in the compressor, then condensed in the condenser, expanded in the expansion valve, and evaporated in the evaporator
Heat is absorbed from the space being cooled in the evaporator and rele...read more
Q42. Our idea of positive thinking
Positive thinking is the mindset of focusing on the good and optimistic aspects of a situation.
Positive thinking involves having a positive attitude and outlook on life.
It is about finding the silver lining in difficult situations.
Positive thinking helps in maintaining motivation and resilience.
It involves reframing negative thoughts into positive ones.
Positive thinking can lead to improved mental and physical well-being.
Example: Instead of dwelling on a mistake, focus on the...read more
Q43. Theory on refrigeration
Refrigeration theory involves the transfer of heat from a low temperature region to a high temperature region using a refrigerant.
Refrigeration is based on the principles of thermodynamics, specifically the second law which states that heat naturally flows from a higher temperature to a lower temperature.
The refrigeration cycle consists of four main components: compressor, condenser, expansion valve, and evaporator.
The compressor compresses the refrigerant gas, raising its te...read more
Q44. Explain Refrigeration cycle
Refrigeration cycle is a thermodynamic process used to remove heat from a low-temperature reservoir and transfer it to a high-temperature reservoir.
The cycle consists of four main components: compressor, condenser, expansion valve, and evaporator.
The refrigerant is compressed by the compressor and then condensed in the condenser, releasing heat to the surroundings.
The high-pressure liquid refrigerant then passes through the expansion valve, where it undergoes a pressure drop ...read more
Q45. Compressor types and operations
Compressors are devices that increase the pressure of a gas or vapor.
Positive displacement compressors
Dynamic compressors
Reciprocating compressors
Centrifugal compressors
Axial compressors
Compressors can be powered by electric motors, gas turbines, or diesel engines.
Q46. Explain 1 ton refrigeration.?
1 ton refrigeration is the amount of heat required to melt one ton of ice in 24 hours.
1 ton refrigeration is equal to 12,000 BTU/hr or 3.517 kW.
It is a unit of measurement used to describe the cooling capacity of a refrigeration system.
For example, a 2 ton refrigeration system can remove twice as much heat as a 1 ton system.
The term 'ton' in 1 ton refrigeration refers to the amount of heat required to melt one ton of ice in 24 hours.
It is important to properly size a refriger...read more
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