100+ DXC Technology Interview Questions and Answers

Renewable energy sources are sources of energy that are replenished naturally and can be used without depleting their reserves.

• Solar energy: energy from the sun that can be converted into electricity through solar panels

• Wind energy: energy generated from wind turbines that convert wind into electricity

• Hydropower: energy generated from flowing water, such as rivers or dams

• Geothermal energy: energy from the heat within the Earth's crust

• Biomass: energy from organic materials lik...read more

Callback is a function passed as an argument to another function to be executed later, while a promise is an object representing the eventual completion or failure of an asynchronous operation.

• Callback is used in traditional asynchronous programming, while promises are used in modern asynchronous programming.

• Callbacks can lead to callback hell or pyramid of doom, while promises provide better readability and error handling.

• Promises can be chained using .then() to handle multi...read more

Electronics is the branch of physics and engineering that deals with the behavior and effects of electrons and with electronic devices.

• Electronics involves the study of electronic components, circuits, and systems.

• It deals with the design, development, and application of electronic devices and systems.

• Examples of electronic devices include computers, smartphones, televisions, and radios.

• Electronics has revolutionized the way we communicate, work, and live.

• It has also led to t...read more

Improving quality involves implementing processes to ensure products or services meet or exceed customer expectations.

• Implement quality control measures to identify and address defects early on

• Provide training and resources to employees to ensure they understand quality standards

• Regularly review and analyze customer feedback to identify areas for improvement

• Utilize technology and automation to streamline processes and reduce errors

My current salary is $8,000 per month.

• My current salary is $8,000 per month

• I am currently earning $8,000 monthly

• My monthly salary is $8,000

A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction.

• Transformers are used to increase or decrease voltage levels in electrical circuits.

• They consist of two coils of wire, known as the primary and secondary coils.

• The primary coil is connected to the input voltage source, while the secondary coil is connected to the output load.

• Transformers are commonly used in power distribution systems to step up voltage fo...read more

Switch gear is a combination of electrical disconnect switches, fuses or circuit breakers used to control, protect and isolate electrical equipment.

• Switch gear is used to control the flow of electricity in a power system.

• It includes devices like circuit breakers, fuses, disconnect switches, etc.

• Switch gear helps in protecting electrical equipment from overloads and short circuits.

• It is essential for the safe operation of electrical systems.

• Examples of switch gear manufacturer...read more

The expense of a solar plant in 2 years depends on various factors such as size, location, and maintenance.

• The size of the solar plant will determine the amount of energy it can produce and the cost of installation.

• The location of the solar plant will determine the amount of sunlight it receives and the cost of land.

• The maintenance cost of the solar plant will depend on the type of technology used and the frequency of maintenance required.

• Other factors such as government ince...read more

PPE stands for Personal Protective Equipment.

• PPE is equipment worn to minimize exposure to hazards that can cause injuries or illnesses.

• It includes items such as helmets, gloves, goggles, masks, and protective clothing.

• PPE is used in various industries like construction, healthcare, manufacturing, etc.

• Its purpose is to protect the wearer from physical, chemical, biological, or radiological hazards.

• Examples of PPE include hard hats to protect against falling objects, safety go...read more

A stringer is a machine used in manufacturing to feed materials such as wires, cables, or threads in a controlled manner.

• A stringer is typically used in industries like aerospace, automotive, and electronics for precise placement of materials.

• Stringers can be automated machines or manual tools depending on the application.

• Examples of stringer machines include wire bonding machines in semiconductor manufacturing and stringing machines in solar panel production.

Coal pillars are left in underground mines to support the roof and prevent collapse.

• Pillar height is determined by the depth of the mine and the strength of the surrounding rock.

• Higher pillars provide more support but also leave less coal to be extracted.

• Pillar failure can lead to roof collapse and endanger miners.

• Proper pillar design and maintenance is crucial for safe and efficient mining operations.

Tests were performed on a sample roof to assess its quality and durability.

• Tests included checking for leaks or water damage

• Assessment of structural integrity

• Evaluation of material quality and condition

• Analysis of insulation effectiveness

• Measurement of overall durability and lifespan expectancy

ESP stands for Electrical Submersible Pump, which is a type of artificial lift system used in oil and gas production.

• ESP consists of a series of centrifugal pumps, a motor, and a seal section.

• The pumps are stacked on top of each other and are connected to a power cable that runs down the wellbore.

• The motor drives the pumps, which push the fluid to the surface.

• ESP is commonly used in high-volume, high-rate wells with low reservoir pressure.

• ESP can handle a wide range of fluid ...read more

Vibration time of concrete is the duration for which concrete is vibrated to remove air bubbles and ensure proper compaction.

• Vibration time varies based on factors like mix design, slump, size of pour, and type of vibrator used.

• Typically, vibration time ranges from 10-30 seconds per foot of concrete thickness.

• Over-vibration can lead to segregation of aggregates, while under-vibration can result in honeycombing.

• Proper vibration ensures strength, durability, and aesthetics of t...read more

The equipment refers to the tools and machinery used in a furnace to facilitate the heating process.

• Includes items such as burners, heat exchangers, control panels, and fuel supply systems

• Equipment must be properly maintained and calibrated for efficient operation

• Examples: combustion air blowers, temperature sensors, refractory materials

Node.js is a runtime environment that allows you to run JavaScript code outside of a web browser.

• Node.js is built on Chrome's V8 JavaScript engine.

• It uses an event-driven, non-blocking I/O model.

• Node.js is commonly used for building server-side applications.

• It has a large ecosystem of open-source libraries and frameworks like Express.js.

Event loop is a mechanism that allows a program to efficiently handle multiple events or tasks concurrently.

• Event loop is commonly used in asynchronous programming to manage tasks that may take varying amounts of time to complete.

• It continuously checks for events or tasks in a queue and executes them one by one.

• Event loop helps prevent blocking of the main thread by allowing non-blocking execution of tasks.

• Popular examples of event loop implementations include Node.js event l...read more

A fire protection system that uses water mist to suppress fires

• Spray system uses fine water droplets to extinguish fires

• It is effective in suppressing fires in enclosed spaces

• Commonly used in areas where traditional sprinkler systems may cause water damage

• Examples include high-pressure water mist systems and low-pressure water mist systems

Solar refers to the energy that is harnessed from the sun and converted into usable electricity.

• Solar energy is renewable and sustainable

• It is generated through the use of solar panels

• Solar power can be used for residential, commercial, and industrial purposes

• Solar energy is a clean source of energy that does not produce harmful emissions

• Countries like Germany, China, and the United States are leading producers of solar energy

Backlash of gear refers to the clearance between mating gear teeth, causing noise and reduced efficiency.

• Backlash can lead to noise and vibration during gear operation

• Excessive backlash can result in reduced efficiency and accuracy of gear transmission

• Proper maintenance and adjustment can help minimize backlash issues

The module of gear refers to the number of teeth on the gear divided by the pitch diameter.

• Module is a unit of measurement for gear teeth size and spacing

• It is calculated by dividing the number of teeth on the gear by the pitch diameter

• Common modules include 1.0, 1.25, 1.5, etc.

Common way of demolition is through controlled implosion.

• Controlled implosion is a method where explosives are strategically placed to bring down a structure in a controlled manner.

• Another common method is mechanical demolition using equipment like wrecking balls, excavators, or bulldozers.

• Selective demolition involves dismantling specific parts of a structure while leaving the rest intact.

• Deconstruction is a sustainable method where materials are carefully disassembled and s...read more

The principle of a transformer is based on electromagnetic induction, where a changing current in one coil induces a voltage in another coil.

• Transformers work on the principle of mutual induction between two coils.

• The primary coil carries the input current and creates a changing magnetic field.

• This changing magnetic field induces a voltage in the secondary coil, which produces the output current.

• Transformers are used to step up or step down voltage levels in electrical system...read more

Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points.

• Ohm's law is represented by the equation I = V/R, where I is the current, V is the voltage, and R is the resistance.

• It is applicable to all types of circuits, including DC and AC circuits.

• Ohm's law is used to calculate the current, voltage, or resistance in a circuit.

• For example, if the voltage across a resistor is 10 volts and the resistance ...read more

The 5 core tools refer to a set of quality control tools used in manufacturing and production processes.

• 1. Process Flow Diagrams

• 2. Control Charts

• 3. Pareto Charts

• 4. Histograms

• 5. Scatter Diagrams

Bachelor's degree in Human Resources Management

• Bachelor's degree in HRM from a reputable university

• Specialized coursework in employee relations and labor laws

• Hands-on experience in handling employee grievances and conflicts

• Certifications in conflict resolution and mediation

• Continuous learning and professional development in the field

Unit weight of steel is calculated using a simple formula based on the density of steel.

• Unit weight of steel = Density of steel * Volume

• Density of steel is typically around 7850 kg/m^3

• Volume can be calculated based on the dimensions of the steel component

A machine is a combination of electrical components that work together to perform a specific function.

• Machines can range from simple devices like a toaster to complex systems like a computer.

• They typically consist of power sources, input/output components, control systems, and mechanical parts.

• Examples include washing machines, refrigerators, and electric motors.

Recent amendments in TDS aim to simplify the tax deduction process and increase compliance.

• The threshold for TDS on interest income has been raised from Rs. 10,000 to Rs. 40,000.

• TDS on rent has been reduced from 10% to 5%.

• TDS on payments made to professionals and contractors has been increased from 10% to 20%.

• The due date for filing TDS returns has been extended to 31st July.

• The penalty for late filing of TDS returns has been increased to Rs. 200 per day.

• The TDS provisions fo...read more

Recent amendments in GST aim to simplify compliance and increase revenue collection.

• The GST Council has introduced a new return filing system to reduce the compliance burden on taxpayers.

• The threshold for GST registration has been increased from Rs. 20 lakhs to Rs. 40 lakhs for small businesses.

• The GST rates on several goods and services have been revised, such as reducing the tax on electric vehicles from 12% to 5%.

• The government has also introduced measures to curb tax evas...read more

My current CTC is $50,000 per year.

• My current CTC is $50,000 per year

• I am currently earning $50,000 annually

• My current salary package is $50,000 per annum

RFID module process involves using radio frequency identification technology to track and manage inventory or assets.

• RFID module consists of a tag or label, reader, and antenna.

• Tags are attached to items and contain electronically stored information.

• Reader sends radio waves to the tag and reads the information stored on it.

• RFID technology is commonly used in industries like retail, logistics, and manufacturing.

• RFID can improve inventory accuracy, reduce theft, and streamline ...read more

MS safety valve is a device used to prevent overpressure in a system.

• MS safety valve is typically installed in pipelines, vessels, or equipment to protect against excessive pressure.

• When the pressure exceeds the set limit, the valve opens to release the excess pressure and prevent damage to the system.

• The valve is designed to automatically close once the pressure returns to a safe level.

• MS safety valves are commonly used in industries such as oil and gas, chemical, and power ...read more

I switched over to explore new opportunities and challenges.

• I wanted to broaden my skill set and gain new experiences.

• I was looking for a company with a better work-life balance.

• I wanted to work in a more collaborative and innovative environment.

• I was seeking a position with more growth potential and career advancement opportunities.

• I was attracted to the company's mission and values.

• For example, my previous company was focused solely on software development, but I wanted to ...read more

Concrete final setting time is the time taken for concrete to completely set and harden.

• Concrete final setting time is influenced by factors like temperature, humidity, and mix design.

• The final setting time of concrete is typically around 6-10 hours, but can vary based on the aforementioned factors.

• Accelerators or retarders can be added to adjust the setting time of concrete as needed.

1m3 of concrete requires approximately 7-8 bags of cement.

• 1m3 of concrete typically requires 7-8 bags of cement

• The exact amount may vary based on the mix design and strength requirements

• For example, for a standard mix of 1:2:4 (cement:sand:aggregate), 1m3 would require around 7 bags of cement

PV call stands for Pharmacovigilance call, which involves reporting adverse drug reactions and safety concerns related to medications.

• PV call is a process where healthcare professionals or patients report any adverse drug reactions or safety concerns related to medications.

• These reports are crucial for monitoring the safety of medications and identifying any potential risks.

• Pharmacovigilance calls are typically made to drug safety hotlines or reporting systems established by ...read more

Practical implementation involves applying theoretical knowledge to real-world situations to achieve desired outcomes.

• Identify the problem or goal

• Develop a plan or strategy

• Allocate resources and assign tasks

• Monitor progress and make adjustments as needed

• Evaluate results and make improvements