20+ Veltris Interview Questions and Answers

The types of motors used for lift installation include AC motors, DC motors, and gearless motors.

• AC motors are commonly used in lifts due to their reliability and ability to handle heavy loads.

• DC motors are used in lifts that require precise control and smooth operation.

• Gearless motors are used in high-rise buildings as they provide high torque and require less maintenance.

• Examples of AC motor brands used in lifts include Siemens, Otis, and Kone.

• Examples of DC motor brands us...read more

Elevator breakdown refers to the malfunction or failure of an elevator system.

• Elevator breakdown can occur due to various reasons such as mechanical issues, power failure, or sensor malfunction.

• When an elevator breaks down, it may get stuck between floors, preventing people from using it.

• In such situations, technicians are called to diagnose and fix the problem to restore the elevator's functionality.

• Regular maintenance and inspections can help prevent elevator breakdowns and...read more

Running clearance refers to the minimum distance required between the elevator car and the hoistway walls or other components.

• Running clearance is important to ensure safe and smooth operation of the elevator.

• It is typically specified by elevator manufacturers and may vary depending on the type and size of the elevator.

• The running clearance is necessary to prevent any contact or interference between the elevator car and the hoistway walls, guide rails, or other components.

• It ...read more

Environmental Compliance refers to the adherence to environmental laws, regulations, and standards to minimize negative impacts on the environment.

• Environmental Compliance involves ensuring that an organization's activities, products, and services comply with environmental laws and regulations.

• It includes monitoring and managing environmental aspects such as air and water pollution, waste management, and energy consumption.

• Compliance with environmental regulations helps prote...read more

Object is an instance of a class while class is a blueprint for creating objects.

• Class is a template or blueprint for creating objects

• Object is an instance of a class

• Class defines the properties and methods that an object will have

• Object is created from a class using the 'new' keyword

• Multiple objects can be created from a single class

Elevator control system is responsible for managing the movement and operation of elevators.

• Elevator control system coordinates the movement of multiple elevators in a building.

• It ensures efficient and safe transportation of passengers or goods between different floors.

• The system includes components like buttons, sensors, motors, and a central control unit.

• It uses algorithms to optimize elevator routes and minimize waiting and travel times.

• Emergency features like fire service...read more

Normalization is the process of organizing data in a database while denormalization is the process of intentionally introducing redundancy into a database.

• Normalization is used to minimize data redundancy and improve data integrity.

• Denormalization is used to improve query performance by reducing the number of joins needed.

• Normalization involves breaking down a table into smaller tables and establishing relationships between them.

• Denormalization involves combining tables to re...read more

Types of inheritance include single, multiple, multilevel, hierarchical, hybrid, and multipath inheritance.

• Single inheritance: A child class inherits from a single parent class.

• Multiple inheritance: A child class inherits from multiple parent classes.

• Multilevel inheritance: A child class inherits from a parent class, which in turn inherits from another parent class.

• Hierarchical inheritance: Multiple child classes inherit from a single parent class.

• Hybrid inheritance: A combin...read more

There are several types of elevator controllers used in different elevator systems.

• Relay-based controllers: These controllers use relays to control the movement of the elevator car.

• Microprocessor-based controllers: These controllers use microprocessors to control the elevator's operation.

• Hydraulic controllers: These controllers are specifically designed for hydraulic elevator systems.

• Traction controllers: These controllers are used in traction elevator systems.

• Machine-room-le...read more

Fibonacci series is a sequence of numbers where each number is the sum of the two preceding ones.

• Declare variables for first two numbers of the series

• Loop through the series and calculate the next number by adding the previous two

• Store the result in an array or print it

• Repeat until desired number of terms is reached

I ensure safety protocols by implementing a comprehensive plan and training workers on safety measures.

• Develop a safety plan specific to the job site

• Train workers on safety procedures and provide necessary safety equipment

• Conduct regular safety inspections and address any hazards immediately

• Ensure compliance with all relevant safety regulations and standards

• Encourage workers to report any safety concerns or incidents

• Hold regular safety meetings to discuss any updates or chang...read more

I track the work using a combination of project management tools, task tracking software, and regular communication with team members.

• Utilize project management tools like Jira or Trello to create and assign tasks

• Use task tracking software to monitor progress and track completion of tasks

• Regularly communicate with team members to get updates on their work

• Hold regular team meetings or stand-ups to discuss progress and address any issues

• Maintain a centralized document or spread...read more

To measure current device's other voltages and electromotive force, use a multimeter set to the appropriate range.

• Set the multimeter to the voltage or electromotive force setting depending on what you want to measure.

• Connect the multimeter leads to the appropriate terminals of the device being measured.

• Read the measurement displayed on the multimeter.

• Ensure the multimeter is set to the correct range to avoid damaging the device or the multimeter.

• For example, to measure the vo...read more

I have managed delays in materials by communicating with suppliers and customers, finding alternative sources, and adjusting timelines.

• Communicated with suppliers and customers to understand the cause of the delay

• Explored alternative sources for materials

• Adjusted timelines and delivery schedules accordingly

• Prioritized critical orders and managed customer expectations

• Worked with cross-functional teams to find solutions

• Implemented process improvements to prevent future delays

A multimeter is a versatile tool used to measure voltage, current, and resistance in electrical circuits. Calibration ensures accuracy of measurements.

• Multimeters are used to measure voltage, current, and resistance in electrical circuits

• Calibration involves adjusting the multimeter to ensure accurate readings

• Regular calibration is important to maintain the accuracy of the instrument

• Examples of calibration methods include adjusting the zero point and checking against known st...read more

Pointers are variables that store memory addresses. They are used to manipulate data and improve performance.

• Pointers allow us to access and modify data directly in memory

• They can be used to pass data between functions efficiently

• Pointers are essential for dynamic memory allocation

• Examples: int* ptr = # char* str = "hello";

• Arrays are implemented using pointers

Job switching can be due to various reasons such as career growth, better salary, work-life balance, and job dissatisfaction.

• Career growth opportunities are limited in the current organization

• Better salary and benefits offered by a new company

• Poor work-life balance in the current job

• Job dissatisfaction due to lack of challenges or recognition

• Relocation to a new city or country

• Company downsizing or restructuring

• To pursue a different career path or industry

Program to find greatest of 3 numbers

• Take input of 3 numbers from user

• Compare the first two numbers and store the greater one

• Compare the stored number with the third number and store the greatest one

• Print the greatest number

Balancing an elevator involves adjusting the counterweights and the tension of the cables to ensure smooth and safe operation.

• The counterweights must be adjusted to match the weight of the elevator car and its occupants.

• The tension of the cables must be adjusted to prevent the car from bouncing or jerking during operation.

• Balancing should be done periodically to ensure continued safe and efficient operation.

• Failure to properly balance an elevator can result in excessive wear ...read more

SAP T-codes are used to access various functions and transactions in SAP software.

• T-codes are shortcuts to access specific functions in SAP software.

• They are used to perform various transactions such as creating invoices, posting journal entries, etc.

• Examples of T-codes include FB01 for creating a financial document, MM01 for creating a material master record, etc.

The lift purpose is to vertically transport people or goods between different levels of a building.

• Lifts are commonly used in buildings with multiple floors to provide convenient and efficient transportation.

• They can be used for transporting people, furniture, equipment, or any other goods between floors.

• Lifts are equipped with safety features such as emergency stop buttons and sensors to prevent accidents.

• Modern lifts may also have features like voice announcements, touchles...read more

Main components in an elevator include the hoist mechanism, control system, and safety devices.

• Hoist mechanism: motor, cables, pulleys

• Control system: buttons, sensors, microprocessor

• Safety devices: emergency brakes, door sensors, overload sensors