100+ Service Engineer Interview Questions and Answers for Freshers

The compulsory policy excess in four wheeler private vehicles varies based on the vehicle's engine capacity.

• For vehicles with engine capacity less than 1500cc, the compulsory policy excess is Rs. 1000

• For vehicles with engine capacity between 1500cc and 2000cc, the compulsory policy excess is Rs. 2000

• For vehicles with engine capacity above 2000cc, the compulsory policy excess is Rs. 7500

The body panels in a car that can be seen from outside include the hood, doors, fenders, roof, trunk, and bumpers.

• Hood: Covers the engine compartment

• Doors: Provide access to the interior

• Fenders: Located above the wheels

• Roof: Covers the passenger compartment

• Trunk: Provides storage space

• Bumpers: Protect the front and rear of the car

AC and DC differ in the direction of electron flow. DC flows steadily in one direction while AC switches direction.

• AC stands for alternating current while DC stands for direct current

• AC is commonly used in household appliances while DC is used in batteries and electronic devices

• AC can travel long distances without losing much energy while DC cannot

• Examples of AC sources include power grids and generators while examples of DC sources include batteries and solar cells

Questions related to tyres, wear, and pressure for a Service Engineer position.

• Tyres are made of rubber and provide traction for vehicles

• There are two types of wear: normal wear and irregular wear

• NSD stands for 'Newly Standardized Dimension'

• Wear is the gradual loss of material from the surface of an object

• PSI stands for 'Pounds per Square Inch'

• Types of tyres include: summer, winter, all-season, performance, and off-road

• Types of tyre structure include: bias-ply, radial, and be...read more

I communicate openly with the manufacturer or client to understand the discrepancies and work towards finding a resolution.

• Openly communicate with the manufacturer or client to discuss the discrepancies

• Provide detailed explanations of your inspection findings and listen to their perspective

• Work collaboratively to find a resolution that satisfies both parties

• Refer to any relevant documentation or standards to support your findings

• Seek guidance from senior engineers or experts ...read more

A radar system is used to measure water level depth and display the value.

• Radar technology is used to send and receive signals to measure the distance to the water surface.

• The time taken for the signal to bounce back is used to calculate the water level depth.

• The radar system then displays the measured water level value.

• Examples of radar systems used for water level measurement include ultrasonic radar and microwave radar.

I am familiar with standards such as ISO 9001, IATF 16949, and regulations like FMVSS and ECE. I ensure compliance through regular training, audits, and documentation.

• Familiar with ISO 9001 for quality management systems

• Knowledge of IATF 16949 for automotive quality management

• Understanding of regulations such as FMVSS (Federal Motor Vehicle Safety Standards) and ECE (Economic Commission for Europe)

• Regular training sessions to keep up-to-date with industry standards

• Conducting ...read more

Patents protect an entrepreneur's intellectual property and provide a competitive advantage.

• Patents prevent others from copying an entrepreneur's invention or idea.

• Patents provide legal protection and can be used to sue infringers.

• Patents can increase the value of a company and attract investors.

• Patents can also be licensed or sold for profit.

• Examples include the patent for the iPhone's touch screen technology and the patent for the first successful polio vaccine.

Customers should follow safety norms for EVs and dealerships must implement measures to ensure safe usage and maintenance.

• Regularly check battery health to prevent overheating or failure.

• Ensure proper charging practices, using only certified chargers.

• Educate customers on emergency procedures in case of an accident.

• Implement fire safety measures, such as fire extinguishers near charging stations.

• Conduct routine inspections of electrical systems to identify potential hazards.

A hydraulic circuit diagram is a schematic representation of a hydraulic system, showing the flow of fluid and the various components involved.

• A hydraulic circuit typically consists of a pump, valves, actuators, and fluid lines.

• The pump is responsible for generating hydraulic pressure by converting mechanical energy into fluid flow.

• Valves control the direction, flow rate, and pressure of the hydraulic fluid.

• Actuators, such as cylinders or motors, convert hydraulic energy into...read more

Applying DC current to a transformer will cause the transformer to saturate, leading to overheating and potential damage.

• DC current does not alternate direction like AC current, causing a build-up of magnetic flux in the transformer core

• This leads to saturation of the core, increasing losses and heat generation

• Over time, the transformer may overheat and potentially suffer damage

• Example: Applying DC current to a power transformer meant for AC current can lead to overheating an...read more

Electric vehicles primarily use lithium-ion batteries, which may require replacement due to various issues.

• Lithium-ion batteries are the most common type used in electric vehicles due to their high energy density and efficiency.

• Battery degradation over time can lead to reduced range and performance, often requiring replacement after several years.

• Temperature extremes can affect battery life; for example, excessive heat can accelerate degradation.

• Physical damage from accidents...read more

Use a tire gauge to measure the pressure and depth of the tire tread to determine the tire number.

• Use a tire gauge to measure the pressure of the tire.

• Measure the depth of the tire tread using a tread depth gauge.

• Refer to the tire manufacturer's guide to determine the tire number based on the pressure and tread depth measurements.

• Alternatively, take a picture of the tire number and use it for reference.

1k, 2k, and 3k paints are used in cars.

• 1k paint is a single-component paint that dries quickly and is easy to apply.

• 2k paint is a two-component paint that requires a hardener to be added before application.

• 3k paint is a three-component paint that requires a hardener and a clear coat to be added before application.

• The type of paint used depends on the desired finish and level of durability.

• For example, 1k paint may be used for touch-ups, while 3k paint is typically used for hi...read more

CCTV stands for Closed Circuit Television. There are various types of CCTV systems, IP address is used for online configuration, and a network adapter is a hardware device for connecting a computer to a network.

• CCTV is a video surveillance system used for monitoring and recording activities in a specific area.

• Types of CCTV include analog, digital, wireless, and network-based systems.

• IP address is essential for configuring CCTV cameras to be accessible online.

• A network adapter...read more

I document defects by taking detailed notes and photos, then report them through a formal report or database entry.

• Take detailed notes of the defect including location, description, and severity

• Take photos or videos to provide visual evidence of the defect

• Report defects through a formal report or database entry

• Include any relevant information such as date, time, and any corrective actions taken

• Follow up on the defect to ensure it has been addressed properly

Common tools and equipment used during inspections include multimeters, pressure gauges, thermal imaging cameras, and diagnostic software.

• Multimeters for electrical testing

• Pressure gauges for measuring pressure levels

• Thermal imaging cameras for detecting heat anomalies

• Diagnostic software for analyzing system performance

AC drives are used for controlling the speed of AC motors, while DC drives are used for controlling the speed of DC motors.

• AC drives are used for controlling the speed of AC motors by varying the frequency of the input power.

• DC drives are used for controlling the speed of DC motors by varying the voltage supplied to the motor.

• AC drives are more commonly used in industrial applications due to the prevalence of AC power sources.

• DC drives are often used in applications where pre...read more

Root cause analysis is crucial in quality control to identify and address the underlying reasons for issues, rather than just treating symptoms.

• Identifying the root cause helps prevent recurrence of the issue.

• It involves gathering data, analyzing the information, and determining the primary cause of the problem.

• Tools like fishbone diagrams, 5 Whys, and fault tree analysis are commonly used in root cause analysis.

• Example: If a machine keeps breaking down, the root cause could ...read more

To connect 3 batteries in series with 36vdc capacity UPS, connect the positive terminal of the first battery to the negative terminal of the second battery, and so on.

• Connect the positive terminal of the first battery to the negative terminal of the second battery

• Connect the positive terminal of the second battery to the negative terminal of the third battery

• Connect the positive terminal of the third battery to the UPS

EV batteries face challenges like limited range, charging infrastructure, recycling, and raw material sourcing.

• Limited Range: Many EVs struggle with range anxiety, as some models only offer 150-250 miles on a single charge.

• Charging Infrastructure: Insufficient charging stations can deter potential EV buyers, especially in rural areas.

• Battery Degradation: Over time, EV batteries lose capacity, affecting performance and requiring costly replacements.

• Recycling Challenges: Curren...read more

The best handling capacity to tolerate diplomacy is to have strong communication skills, empathy, and the ability to remain calm and composed in difficult situations.

• Strong communication skills are essential for understanding and conveying messages effectively.

• Empathy helps in understanding different perspectives and finding common ground.

• Remaining calm and composed allows for rational thinking and problem-solving.

• Being open-minded and flexible helps in adapting to different ...read more

Load test of a transformer involves applying a load to the transformer and measuring its performance, while no load test involves measuring the transformer's performance without any load.

• Load test determines the efficiency and voltage regulation of the transformer under load conditions.

• No load test measures the core losses and magnetizing current of the transformer without any load connected.

• Load test helps in determining the actual power output of the transformer under speci...read more

Enrolling biometric attendance system involves registering employees' biometric data and linking it to their unique identification number.

• Collect biometric data of employees such as fingerprints, iris scans, or facial recognition.

• Create a database to store the biometric data and link it to each employee's identification number.

• Train employees on how to use the biometric attendance system.

• Test the system to ensure accuracy and reliability.

• Regularly update and maintain the syst...read more

Learned about power transmission and distribution, substation equipment and maintenance.

• Acquired knowledge about the functioning of 132kv substation equipment

• Learned about power transmission and distribution systems

• Gained experience in substation maintenance and troubleshooting

• Understood the importance of safety measures in substation operations

BIOS stands for Basic Input/Output System. It is firmware that initializes hardware during the boot process and provides runtime services.

• BIOS is a firmware that is stored on a chip on the computer's motherboard.

• It is responsible for initializing and testing hardware components during the boot process.

• BIOS provides runtime services like managing system configuration settings and controlling input/output operations.

• It is the first software that runs when a computer is powered ...read more

Smoke detectors and fire alarm systems work by detecting smoke or heat and alerting occupants of a potential fire.

• Smoke detectors use sensors to detect smoke particles in the air.

• Fire alarm systems can be connected to smoke detectors and other sensors, such as heat detectors and carbon monoxide detectors.

• When smoke or heat is detected, the alarm system sounds an alarm and may also trigger sprinklers or other fire suppression systems.

• Regular maintenance and testing of smoke de...read more