Schindler
40+ Sewa Grih Rin Interview Questions and Answers
Q1. Difference between Low carbon steel, Medium and High carbon steel?
Low carbon steel has the lowest carbon content, medium carbon steel has a moderate carbon content, and high carbon steel has the highest carbon content.
Low carbon steel contains less than 0.25% carbon.
Medium carbon steel contains 0.25% to 0.60% carbon.
High carbon steel contains more than 0.60% carbon.
Low carbon steel is easily weldable and has good ductility.
Medium carbon steel is stronger and harder than low carbon steel.
High carbon steel is extremely strong and hard, but le...read more
Q2. What is Press Tool / Punch / Die and how to calculate capacity of Press Tool
Press Tool / Punch / Die is a tool used in manufacturing to cut, shape, or form materials.
Press Tool / Punch / Die is used in metalworking, woodworking, and plastics manufacturing.
The capacity of a Press Tool is calculated based on the tonnage of the press and the material being worked on.
The tonnage required for a Press Tool can be calculated using the formula: Tonnage = (Material Thickness x Material Strength) / (Die Width x 2).
Q3. Tell me about types of motor yo had worked
I have worked with various types of motors including AC motors, DC motors, stepper motors, and servo motors.
AC motors: Used in household appliances and industrial applications.
DC motors: Commonly found in electric vehicles and robotics.
Stepper motors: Used in precision positioning systems and 3D printers.
Servo motors: Found in robotics and automation for precise control.
Q4. how many elevator portfolio you are handling right now?
I am currently handling a portfolio of 15 elevators.
Currently managing 15 elevators in various buildings
Responsible for maintenance, repairs, and upgrades
Regularly communicate with building owners and tenants
Provide technical support and troubleshooting services
Track performance metrics and ensure compliance with safety regulations
Q5. Working principle of transformer
A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction.
Transformers work on the principle of electromagnetic induction.
They consist of two or more coils of wire, known as windings, which are wound around a common magnetic core.
The primary winding is connected to the input voltage source, while the secondary winding is connected to the load.
When an alternating current flows through the primary winding, it creat...read more
Q6. Do you know about safety policy
Yes, I am familiar with safety policies.
I have a strong understanding of safety policies and procedures.
I am knowledgeable about industry-specific safety regulations.
I have experience implementing safety measures in previous roles.
I prioritize the safety of customers and colleagues in my work.
I am familiar with conducting safety audits and inspections.
Q7. Customer is highly sensitive how to handler
Handle with care and attention to detail.
Listen actively to their concerns and needs.
Communicate clearly and regularly.
Provide frequent updates and progress reports.
Be responsive and available for questions or issues.
Ensure quality and accuracy in all deliverables.
Establish trust and build a strong relationship.
Address any issues or concerns promptly and professionally.
Q8. Draw down the symbol of pnp,npn transistor
A PNP transistor symbol consists of an arrow pointing inward, while an NPN transistor symbol consists of an arrow pointing outward.
PNP transistor symbol has an arrow pointing inward
NPN transistor symbol has an arrow pointing outward
Q9. What is your elevator safety component, layout refer etc
Elevator safety components include door sensors, emergency stop buttons, and overload sensors.
Door sensors detect obstructions and prevent doors from closing on objects or people.
Emergency stop buttons allow passengers to halt the elevator in case of an emergency.
Overload sensors prevent the elevator from moving if it exceeds its weight capacity.
Layout refers to the physical arrangement of these safety components within the elevator system.
Q10. Function and working of bride rectifire
A bridge rectifier is an electronic circuit that converts alternating current (AC) to direct current (DC).
A bridge rectifier consists of four diodes arranged in a bridge configuration.
It rectifies the AC input voltage by allowing current to flow in only one direction.
During the positive half-cycle of the AC input, two diodes conduct and during the negative half-cycle, the other two diodes conduct.
This results in a pulsating DC output that is then filtered to obtain a smoother...read more
Q11. Rectifier working in detail
A rectifier is an electrical device that converts alternating current (AC) to direct current (DC).
Rectifiers are commonly used in power supplies and electronic devices.
They consist of diodes that allow current to flow in only one direction.
Half-wave and full-wave rectifiers are two common types of rectifiers.
Rectifiers can be used to convert AC power from the mains to DC power for electronic devices.
They are also used in battery charging circuits and in converting AC power to...read more
Q12. Manufacturing method of T guide rail for Elevator
T guide rails for elevators are typically manufactured using extrusion or roll forming methods.
Extrusion involves pushing a heated metal billet through a die to create the desired shape.
Roll forming involves passing a metal strip through a series of rollers to gradually form the shape.
The manufacturing method used may depend on factors such as the desired material, tolerances, and production volume.
Quality control measures such as inspection and testing are important to ensur...read more
Q13. How to manage customer / manpower / management when everything is falling apart.?
To manage customer/manpower/management during a crisis, communication, empathy, and problem-solving skills are key.
Maintain open and honest communication with customers, employees, and management to address concerns and provide updates.
Show empathy towards customers and employees by listening to their needs and offering support.
Utilize problem-solving skills to identify the root cause of the issues and develop effective solutions.
Prioritize tasks and delegate responsibilities...read more
Q14. Which type of motor use in elevator & disscrive drive.
Elevators typically use AC induction motors with variable frequency drives for smooth and efficient operation.
AC induction motors are commonly used in elevators due to their reliability and ability to provide smooth and quiet operation.
Variable frequency drives are used to control the speed and torque of the motor, allowing for precise movement and energy efficiency.
The drive system in an elevator is responsible for controlling the motor's speed, direction, and braking, ensur...read more
Q15. What's safety circuit,u have know seeing drawing
A safety circuit is an electrical circuit designed to protect people and equipment from potential hazards.
A safety circuit typically includes components such as emergency stop buttons, safety switches, and safety relays.
It is used to monitor and control the operation of machinery or equipment to ensure safe operation.
When a safety hazard is detected, the safety circuit will activate protective measures, such as stopping the machinery or isolating power.
Safety circuits are com...read more
Q16. Welding method used for SS material
TIG welding is commonly used for SS material due to its precision and clean finish.
TIG welding is a popular method for SS material due to its ability to produce high-quality welds with minimal distortion.
It uses a tungsten electrode to create an arc that melts the metal and filler material, which is then cooled to form a strong bond.
Other welding methods like MIG and Stick welding can also be used for SS material, but TIG is preferred for its precision and clean finish.
Proper...read more
Q17. Market knowledge and market expansion status in the teritory
I have extensive market knowledge and have successfully expanded territories in my previous roles.
I have researched and analyzed market trends and competition to develop effective strategies for expansion.
In my previous role as Accounts Manager at XYZ Company, I successfully expanded our market share by 20% in the first year.
I have also established strong relationships with key stakeholders and clients to ensure long-term success in the market.
I am constantly staying up-to-da...read more
Q18. What is ac and dc
AC and DC are types of electrical current.
AC stands for alternating current and changes direction periodically.
DC stands for direct current and flows in one direction only.
AC is used in household appliances and power grids while DC is used in batteries and electronic devices.
AC voltage can be easily transformed using a transformer while DC voltage cannot be transformed without a converter.
Q19. Operation of solenoid coil
The operation of a solenoid coil involves the conversion of electrical energy into mechanical motion.
A solenoid coil consists of a wire wound into a tightly packed helix.
When an electric current passes through the coil, a magnetic field is generated.
This magnetic field attracts or repels a movable ferromagnetic core, resulting in mechanical motion.
The direction of the motion depends on the polarity of the current and the design of the solenoid.
Solenoid coils are commonly used...read more
Q20. 1cm= ???, what is the tool, chezal,
1cm = 10mm, chezal is likely a misspelling of chisel
1cm is equal to 10mm
Chezal is likely a misspelling of chisel, a tool used for cutting and shaping wood, stone, or metal
Q21. What is the over load and full load?
Overload is when a device is being operated beyond its rated capacity, while full load is the maximum capacity at which a device can operate.
Overload is a temporary condition that can cause damage to the device if it persists.
Full load is the maximum capacity at which a device can operate without causing damage.
Overload can be caused by excessive current, voltage, or power.
Full load is typically specified by the manufacturer and is used to determine the appropriate size of th...read more
Q22. Advantages and Disadvantage of traction elevators
Traction elevators offer advantages such as smooth ride and energy efficiency, but have disadvantages like higher initial cost and complex maintenance.
Advantages of traction elevators:
- Smooth and comfortable ride for passengers
- Energy efficient operation
- Ability to travel longer distances
- Higher weight capacity compared to hydraulic elevators
- Suitable for high-rise buildings
Disadvantages of traction elevators:
- Higher initial cost for installation
- Complex maintenance an...read more
Q23. Troubleshooting shooting method
Troubleshooting shooting method involves identifying and resolving issues in a systematic manner.
Start by gathering information about the issue and its symptoms
Identify possible causes and narrow down the root cause
Develop a plan to address the issue step by step
Test solutions and verify if the issue is resolved
Document the troubleshooting process for future reference
Q24. Planning of daily activities
Planning of daily activities involves prioritizing tasks and allocating time efficiently.
Create a to-do list for the day
Prioritize tasks based on urgency and importance
Allocate time for each task and stick to the schedule
Be flexible and adjust the plan as needed
Use tools like calendars and reminders to stay organized
Q25. What is the mcb, elcb
MCB stands for Miniature Circuit Breaker and ELCB stands for Earth Leakage Circuit Breaker.
MCB is a type of circuit breaker that automatically switches off electrical circuits during abnormal conditions.
ELCB is a safety device used in electrical installations with high earth impedance to prevent electric shock.
MCB protects against overloads and short circuits, while ELCB protects against earth faults.
Examples: Schneider Electric MCB, Siemens ELCB.
Q26. Full form of MCB
MCB stands for Miniature Circuit Breaker.
MCB is an electrical switch that automatically interrupts the flow of current in an electrical circuit during an overload or short circuit.
It is a type of circuit breaker that is commonly used in residential and commercial buildings to protect electrical circuits from damage.
MCBs are designed to trip and disconnect the circuit when excessive current flows through it, preventing overheating and potential fire hazards.
They are compact in...read more
Q27. Operation of VFD's
VFD's (Variable Frequency Drives) are electronic devices used to control the speed and torque of electric motors.
VFD's convert fixed frequency AC power to variable frequency power, allowing precise control of motor speed.
They are commonly used in industrial applications to save energy, improve motor performance, and reduce wear and tear.
VFD's consist of three main components: rectifier, DC bus, and inverter.
The rectifier converts AC power to DC power, the DC bus stores the co...read more
Q28. What is the AC current and DC current.
AC current alternates direction periodically while DC current flows in one direction only.
AC current changes direction periodically, typically used for power transmission
DC current flows in one direction only, typically used for electronic devices
AC current is measured in Hertz (Hz) while DC current is measured in Amperes (A)
Examples of AC sources include power outlets and generators, while examples of DC sources include batteries and solar cells
Q29. Which type of safety used in elevator industry
Elevators use various safety mechanisms to prevent accidents.
Emergency brakes are installed to stop the elevator in case of a malfunction.
Door interlocks prevent the doors from opening unless the elevator is at a stop.
Overload sensors prevent the elevator from moving if it exceeds its weight limit.
Safety edges on the doors detect obstructions and stop the doors from closing.
Firefighters' emergency operation allows firefighters to take control of the elevator during an emergen...read more
Q30. What is motor and working principle ?
A motor is a device that converts electrical energy into mechanical energy. Its working principle is based on the interaction between a magnetic field and an electric current.
Motors can be classified into different types such as DC motors, AC motors, stepper motors, etc.
The working principle of a DC motor is based on the interaction between a magnetic field and an electric current, which produces a rotational motion.
AC motors work on the principle of electromagnetic induction...read more
Q31. How you will tackle 3000 customers
To tackle 3000 customers, I would implement efficient customer service strategies and utilize technology to streamline processes.
Implement a customer service team with well-defined roles and responsibilities
Utilize technology such as customer relationship management (CRM) software to manage customer interactions and data
Implement self-service options like online ordering or automated phone systems to handle routine inquiries
Train and empower employees to handle customer issue...read more
Q32. Types of Welding Gases
Welding gases are used to protect the weld area from atmospheric gases and to provide heat for welding.
Common welding gases include argon, helium, carbon dioxide, and oxygen.
Argon is used for TIG welding, while helium is used for welding aluminum.
Carbon dioxide is used for MIG welding, and oxygen is used for cutting and welding.
Gas mixtures like argon and carbon dioxide are also used for welding.
The choice of welding gas depends on the type of metal being welded and the weldi...read more
Q33. What is traction elevators
Traction elevators are a type of elevator system that use cables and a counterweight to move the elevator car.
Traction elevators are commonly used in high-rise buildings.
They operate by using an electric motor to drive a sheave (pulley) system.
The elevator car is attached to a set of steel cables, which are connected to a counterweight.
As the motor turns the sheave, the cables move the elevator car up or down.
The counterweight helps to balance the weight of the car and reduce...read more
Q34. Design inputs to mass production, End to end solution
Design inputs for mass production require a comprehensive end-to-end solution.
Identify the target market and their needs
Determine the production volume and manufacturing process
Develop a detailed design and prototype
Conduct testing and validation
Implement quality control measures
Establish supply chain and logistics
Ensure regulatory compliance
Provide ongoing support and maintenance
Q35. How many teyps of sefty gare
There are several types of safety gear depending on the industry and job requirements.
Safety harnesses for construction workers
Hard hats for industrial workers
Safety goggles for laboratory technicians
Earplugs for factory workers
Steel-toed boots for warehouse workers
Life jackets for boaters
Fire extinguishers for office buildings
Q36. What is Net working capital
Net working capital is the difference between a company's current assets and current liabilities.
Net working capital measures a company's liquidity and ability to meet short-term obligations.
It is calculated by subtracting current liabilities from current assets.
A positive net working capital indicates that a company has enough current assets to cover its current liabilities.
A negative net working capital suggests that a company may have difficulty meeting its short-term obli...read more
Q37. How to you handle customer.
I handle customers with patience, empathy, and effective communication.
Listen actively to understand their concerns
Show empathy and understanding towards their situation
Communicate clearly and effectively to address their needs
Provide timely updates and follow-ups on their service requests
Q38. What is the O.S.G ?
O.S.G stands for Operating System Group, a team responsible for developing and maintaining operating systems.
The O.S.G is responsible for developing and maintaining operating systems.
The team works on improving the performance and security of the operating systems.
Examples of operating systems developed by O.S.G include Windows, macOS, and Linux.
Q39. How maney teyps of baffuer
There are different types of buffers used in various fields such as computer science, chemistry, and biology.
Buffers are solutions that resist changes in pH when an acid or base is added.
In computer science, a buffer is a temporary storage area for data.
In chemistry, there are three types of buffers: acidic, basic, and universal.
In biology, buffers are used to maintain the pH of biological fluids such as blood and cellular fluids.
Q40. Function of osg & safety gear
OSG stands for Occupational Safety and Health Gear. It includes equipment and clothing designed to protect workers from workplace hazards.
OSG includes items such as helmets, gloves, safety goggles, ear protection, and safety harnesses.
The function of OSG is to minimize the risk of injury or illness in the workplace.
Safety gear is essential for workers in industries such as construction, manufacturing, and mining.
Proper training on how to use safety gear is also important to e...read more
Q41. What is elevator?
An elevator is a vertical transportation device that moves people or goods between floors in a building.
Elevators are powered by electric motors and typically consist of a cab or platform that moves along a fixed track within a shaft.
They are essential in tall buildings to efficiently transport people and goods to different levels.
Elevators can be hydraulic, traction, or pneumatic, depending on the mechanism used to move the cab.
Safety features such as emergency brakes and ba...read more
Q42. Final decision after joine
The final decision after joining depends on various factors.
The employee's performance and attitude
The company's financial situation
The employee's fit with the company culture
The availability of opportunities for growth and advancement
The employee's willingness to learn and adapt
The company's overall goals and objectives
Q43. Tension 20mm in aliment
The question is unclear and lacks context.
Please provide more information about the context of the question.
What is the purpose of the aliment and what type of tension is required?
Without additional information, it is difficult to provide a specific answer.
Q44. harness explain
A harness is a collection of wires or cables that are bound together to transmit electrical signals or power.
Used to organize and protect wires in electrical systems
Can be used in automotive, aerospace, or industrial applications
May include connectors, terminals, and insulation materials
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