30+ Field Engineer Interview Questions and Answers for Freshers

A thermocouple is a temperature sensor that works on the principle of the Seebeck effect. It consists of two dissimilar metals.

• Thermocouples generate a voltage when there is a temperature difference between the two junctions.

• The voltage generated is proportional to the temperature difference.

• Common types of thermocouples include Type K, Type J, and Type T.

• Type K thermocouples are made of chromel and alumel and can measure temperatures up to 1,372°C.

• Type J thermocouples are ma...read more

A pyrometer is a device used to measure high temperatures without making physical contact with the object being measured.

• Pyrometers use the principle of thermal radiation to measure temperature.

• They are commonly used in industrial settings to monitor and control temperature in processes such as metalworking, glass manufacturing, and furnace operation.

• Pyrometers can measure temperatures ranging from a few hundred degrees Celsius to several thousand degrees Celsius.

• They are non...read more

Various types of conductors include copper, aluminum, and steel.

• Copper: highly conductive, commonly used in electrical wiring

• Aluminum: lighter and cheaper than copper, used in power lines

• Steel: used in overhead transmission lines for strength and durability

LAN stands for Local Area Network. It is a network that connects computers and devices within a limited area, such as a home, office, or building.

• LAN is a network that allows computers and devices to communicate with each other within a small geographic area.

• It is typically used in homes, offices, schools, and other small-scale environments.

• LANs can be wired or wireless, using technologies like Ethernet or Wi-Fi.

• LANs provide high-speed data transfer and resource sharing among...read more

Transformers, CTs, PTs, and surge arrestors are electrical components used in power systems to regulate voltage and protect equipment.

• Transformers are used to step up or step down voltage levels in power systems.

• CTs (Current Transformers) are used to measure current in power systems.

• PTs (Potential Transformers) are used to measure voltage in power systems.

• Surge arrestors are used to protect equipment from voltage spikes and surges.

Ladder logic programming is a graphical programming language used in industrial automation to create logic circuits.

• Ladder logic programming is based on the concept of relay logic, where electrical circuits are represented using ladder diagrams.

• It is commonly used in programmable logic controllers (PLCs) to control and automate industrial processes.

• Ladder logic programming uses a set of symbols and contacts to represent inputs, outputs, and logic functions.

• The logic circuits ...read more

Different types of transformers and their ratings in kV. Explanation of LV and HV sides.

• Transformers: Power, Distribution, Auto, Isolation, Instrument, etc.

• Ratings: 1 kV, 11 kV, 33 kV, 66 kV, 132 kV, 220 kV, 400 kV, etc.

• LV side: Low Voltage side of transformer, typically below 1 kV.

• HV side: High Voltage side of transformer, typically above 1 kV.

• LV side is used for distribution while HV side is used for transmission.

• LV side has more turns in the winding while HV side has fewer...read more

Manpower output varies depending on the type of work, with factors such as skill level, equipment availability, and project timeline playing a role.

• Manpower output for shuttering can range from 10-20 sqm per day depending on complexity

• Steelwork output can vary from 50-100 kg per worker per day

• Blockwork output can range from 50-100 blocks per worker per day

• Plastering output can vary from 10-20 sqm per worker per day

• Factors such as skill level, equipment availability, and proje...read more

The question is about symbols, types of pole, principle of rectifier and its working.

• Symbols used in electrical engineering include resistor, capacitor, inductor, etc.

• Types of poles include north and south poles in magnets and positive and negative poles in batteries.

• The principle of rectifier is to convert AC to DC.

• Rectifiers can be half-wave or full-wave.

• Working of rectifier involves the use of diodes to allow current flow in one direction only.

Code 1200 is not specifically for billing purposes.

• Code 1200 is typically used in reference to a specific task or action, not billing.

• It could be related to a specific product, service, or process within a company.

• For example, code 1200 might indicate a specific troubleshooting step in a technical manual.

RRU stands for Remote Radio Unit, a component of a base station used in wireless communication networks.

• RRU is responsible for transmitting and receiving radio signals to and from the antenna.

• It is usually located at the top of a cell tower or on a rooftop.

• RRUs are used in technologies such as 4G LTE and 5G.

• They are designed to be compact and energy-efficient.

• RRUs can be easily replaced or upgraded without affecting the rest of the base station.

• Examples of RRU manufacturers i...read more

Yes, I am familiar with weblct login.

• I have experience logging into weblct for various projects.

• I am comfortable navigating the weblct interface.

• I am able to troubleshoot any login issues that may arise.

WAN stands for Wide Area Network. It is a network that spans a large geographical area, connecting multiple local area networks (LANs) together.

• WAN is used to connect computers and devices over long distances, such as different offices or cities.

• It utilizes various technologies like leased lines, satellite links, and internet connections.

• WAN allows for the sharing of resources and data between connected LANs.

• Examples of WAN technologies include MPLS (Multiprotocol Label Switc...read more

A DCS (Distributed Control System) is a computerized control system used to monitor and control industrial processes.

• DCS is commonly used in industries such as oil and gas, power generation, and manufacturing.

• It consists of a network of controllers and operator stations that communicate with each other to monitor and control various processes.

• DCS provides real-time data, alarms, and control functions to ensure efficient and safe operation of industrial processes.

• Examples of D...read more

VSWR stands for Voltage Standing Wave Ratio. It is a measure of how well the impedance of a transmission line matches the input/output impedance of the connected device.

• VSWR is a ratio of the maximum voltage to the minimum voltage in a standing wave pattern along a transmission line.

• It is used to measure the efficiency of power transfer between a device and a transmission line.

• A VSWR of 1:1 indicates perfect impedance matching, while higher ratios indicate poor matching.

• VSWR ...read more

Job skills should be decided based on the job requirements and the candidate's qualifications.

• Analyze the job description and identify the required skills

• Assess the candidate's qualifications and experience

• Consider the company culture and values

• Prioritize essential skills and qualifications

• Provide training and development opportunities for desired skills

A drive is a device or mechanism used to store and retrieve data or information.

• Drives can be physical devices like hard disk drives (HDD) or solid-state drives (SSD).

• They can also be virtual drives created by software, such as network drives or cloud storage.

• Drives are used to store various types of data, including files, documents, programs, and operating systems.

• Examples of drives include C: drive, D: drive, USB drives, and DVD drives.

SCR stands for Silicon Controlled Rectifier.

• SCR is a type of semiconductor device used for controlling high power electrical circuits.

• It is a four-layer, three-terminal device that can switch and control high currents.

• SCRs are commonly used in applications such as motor control, power supplies, and lighting control.

• They can handle high voltage and current levels and are known for their robustness and reliability.

• SCRs are triggered into conduction by a small control current ap...read more

LAN is a local area network that connects devices within a limited area. MAN is a metropolitan area network that connects devices within a city or town.

• LAN is used in homes, schools, and small businesses.

• MAN is used in larger organizations and cities.

• LAN has a limited range and is usually wired.

• MAN can be wired or wireless and covers a larger area.

• LAN is easier to set up and maintain than MAN.

CPU ebruvation refers to the process of CPU overheating and subsequent shutdown to prevent damage.

• CPU ebruvation occurs when the CPU temperature exceeds its safe operating limit.

• It is a protective mechanism to prevent damage to the CPU.

• During ebruvation, the CPU shuts down to cool down and avoid overheating.

• Common causes of CPU ebruvation include inadequate cooling, dust accumulation, or overclocking.

• Monitoring CPU temperature and ensuring proper cooling can help prevent ebru...read more

No, I am not familiar with login TN.

• I am not sure what login TN refers to.

• Can you provide more context or information about login TN?

• I am willing to learn and adapt to new technologies and systems.

ODU stands for Outdoor Unit. It is a component of a wireless communication system that is installed outside a building or structure.

• ODU is responsible for transmitting and receiving signals between the indoor unit and the base station.

• It is designed to withstand harsh weather conditions and is usually mounted on a rooftop or a pole.

• ODUs are commonly used in microwave and satellite communication systems.

• Examples of ODU manufacturers include Cambium Networks, Huawei, and Ubiqui...read more

RSL stands for Received Signal Level, which is a measure of the strength of a received radio signal.

• RSL is commonly used in the telecommunications industry to measure the strength of a signal received by a device.

• It is usually measured in decibels (dB) and can be used to determine the quality of a signal.

• RSL can be affected by various factors such as distance, obstacles, and interference.

• For example, a weak RSL may indicate poor signal quality and result in dropped calls or s...read more

Optical fiber works on the principle of total internal reflection of light.

• Light is transmitted through a core made of glass or plastic

• The core is surrounded by a cladding layer with a lower refractive index

• When light enters the core at an angle greater than the critical angle, it reflects off the cladding and stays within the core

• This allows for high-speed data transmission over long distances

• Examples include fiber optic cables used in telecommunications and internet connect...read more

HDD stands for Hard Disk Drive.

• HDD is a data storage device used in computers and other electronic devices.

• It uses magnetic storage to store and retrieve digital information.

• HDDs are commonly used for long-term storage of files, programs, and operating systems.

• They have spinning disks called platters that store data using read/write heads.

• HDDs are slower than solid-state drives (SSDs) but offer larger storage capacities at a lower cost.

A water supply scheme project involves designing and implementing a system to provide clean water to a community.

• Identify the water source and assess its quality

• Design a treatment system to remove impurities

• Construct pipelines and storage tanks

• Implement a distribution system to deliver water to households

• Train community members on maintenance and operation of the system

Acceptance criteria of cube includes dimensions, material, weight, and quality standards.

• Dimensions must meet specified measurements (e.g. 10cm x 10cm x 10cm)

• Material should be durable and suitable for intended use (e.g. plastic, wood, metal)

• Weight should be within acceptable range based on material and size

• Quality standards must be met in terms of finish, edges, and overall construction

Stripping time of shutterings refers to the time required for removing the formwork from concrete structures.

• Stripping time depends on factors like type of formwork material, concrete mix design, ambient temperature, and curing method.

• For example, timber formwork may require longer stripping time compared to steel formwork.

• In hot weather, concrete may set faster, reducing the stripping time.

• Proper curing can also affect the stripping time by ensuring the concrete reaches suff...read more

Routers configuration involves setting up network protocols, security measures, and IP addresses.

• Access the router's web interface through a browser

• Configure network protocols such as DHCP, NAT, and VLANs

• Set up security measures such as firewalls and access control lists

• Assign IP addresses to devices on the network

• Examples of router brands include Cisco, Netgear, and TP-Link

VSAT link network issue

• Check for any physical damage to the VSAT equipment

• Ensure proper alignment of the VSAT dish

• Check for any interference from nearby structures or equipment

• Verify the configuration settings of the VSAT modem

Troubleshooting in a plant involves identifying and resolving issues that affect production and efficiency.

• Start by gathering information about the problem and its symptoms

• Use diagnostic tools and techniques to identify the root cause

• Develop and implement a plan to address the issue

• Monitor the situation to ensure the solution is effective

• Document the problem and solution for future reference

Router configuration involves setting up and managing network settings on a router.

• Access the router's web interface by entering its IP address in a web browser

• Configure network settings such as SSID, password, and security type

• Set up port forwarding to allow access to specific devices or services

• Update firmware to ensure the router is running the latest software

• Enable or disable features such as guest networks or parental controls