10+ Field Service Engineer Interview Questions and Answers for Freshers

A step-up transformer increases voltage while a step-down transformer decreases voltage.

• Step-up transformer has more turns in the secondary coil than in the primary coil

• Step-down transformer has fewer turns in the secondary coil than in the primary coil

• Step-up transformers are used in power transmission lines to increase voltage for long-distance transmission

• Step-down transformers are used in household appliances to decrease voltage for safe use

AC is converted to DC using a rectifier, which changes the flow of current from bidirectional to unidirectional.

• Use a rectifier to convert AC to DC

• Rectifiers can be half-wave or full-wave

• Examples of rectifiers include diodes and thyristors

DC to AC conversion is done using an inverter, while AC to DC conversion is done using a rectifier.

• DC to AC conversion involves using an inverter to convert the steady flow of direct current into a fluctuating flow of alternating current.

• AC to DC conversion involves using a rectifier to convert the alternating current into direct current.

• Inverters use electronic components like transistors and capacitors to switch the polarity of the DC input to create an AC output.

• Rectifiers...read more

An RLC circuit is a circuit composed of a resistor, inductor, and capacitor, used in electrical engineering for various applications.

• An RLC circuit can be used in filters, oscillators, tuners, and frequency mixers.

• The behavior of an RLC circuit is governed by the values of resistance, inductance, and capacitance.

• The impedance of an RLC circuit varies with frequency, leading to different responses in AC circuits.

• Examples of RLC circuits include bandpass filters, low-pass filte...read more

Various issues can occur with HPLC systems, affecting performance and results.

• Column blockage or clogging

• Leakage in the system

• Pump malfunction

• Detector signal instability

• Gradient formation problems

• Baseline noise or drift

• Sample contamination

• Injection problems

• Software or data analysis issues

To resolve product issues, identify the root cause and provide a solution to prevent future occurrences.

• Gather information about the issue from the customer and analyze the product

• Identify the root cause of the issue

• Provide a solution to fix the issue and prevent future occurrences

• Communicate the solution to the customer and ensure their satisfaction

Managing customers onsite requires effective communication, problem-solving skills, and a customer-centric approach.

• Establish clear communication channels with the customer

• Listen actively to their concerns and needs

• Provide timely updates on the progress of the service

• Be proactive in identifying and addressing potential issues

• Maintain a positive and professional attitude

• Ensure customer satisfaction before leaving the site

Carestream Dental offers a wide range of dental products for various dental procedures.

• Carestream Dental provides digital imaging solutions such as intraoral cameras, digital radiography systems, and 3D imaging systems.

• They also offer software solutions for practice management, image analysis, and patient communication.

• Their product portfolio includes dental equipment such as chairs, lights, and delivery systems.

• Carestream Dental's products are designed to improve patient car...read more

Router configuration varies based on the network requirements and devices connected.

• Determine the network requirements and devices to be connected

• Choose the appropriate router model and firmware version

• Configure the WAN and LAN settings

• Set up security features such as firewalls and VPNs

• Enable remote access and management if required

Kirchhoff's law states that the total current entering a junction is equal to the total current leaving the junction.

• Kirchhoff's current law (KCL) is based on the principle of conservation of charge.

• It is used to analyze electrical circuits and determine unknown currents.

• KCL is often applied to nodes in a circuit where multiple branches meet.

• An example of KCL in action is when analyzing a circuit with multiple resistors in parallel.

Yes, CCTV cameras often have self-diagnostic capabilities to detect and report issues.

• CCTV cameras can perform self-checks to ensure they are functioning properly

• Some CCTV cameras have built-in diagnostic tools to detect issues like lens obstruction or connectivity problems

• Self-diagnostic features can help in troubleshooting and maintenance of CCTV systems