10+ Trainee Engineer In Production Interview Questions and Answers

Improving company growth can be achieved through various strategies.

• Developing new products or services

• Expanding into new markets

• Investing in research and development

• Improving operational efficiency

• Building a strong brand image

• Fostering a culture of innovation

• Acquiring or merging with other companies

• Providing excellent customer service

• Hiring and retaining top talent

• Implementing effective marketing strategies

Electromechanical relays are commonly used in transformers for protection and control purposes.

• Electromechanical relays are commonly used in transformer protection schemes to detect faults and isolate the transformer from the system.

• Different types of relays used in transformers include overcurrent relays, differential relays, and distance relays.

• Solid-state relays are also gaining popularity due to their faster response times and higher reliability.

• Examples of relay manufact...read more

Categories of defects include dimensional, cosmetic, functional, and safety-related defects.

• Dimensional defects: Variations in size or shape that affect the product's performance.

• Cosmetic defects: Surface imperfections that do not impact functionality but affect appearance.

• Functional defects: Issues that prevent the product from performing its intended purpose.

• Safety-related defects: Flaws that pose a risk to the user's safety.

• Examples: scratches on a phone screen (cosmetic),...read more

Transformer rating in kVA is used instead of kW due to the presence of reactive power.

• kVA takes into account both active power (kW) and reactive power, providing a more accurate representation of the transformer's capacity.

• Reactive power is necessary for the magnetic field in transformers and does not perform useful work like active power.

• Using kVA allows for better sizing and selection of transformers to handle both active and reactive power components.

• For example, a transfo...read more

Types of reboilers include kettle reboilers, thermosiphon reboilers, forced circulation reboilers, and plate-fin reboilers. NPSH stands for Net Positive Suction Head and is a measure of a pump's ability to prevent cavitation. Cavitation is the formation and collapse of vapor bubbles in a liquid due to low pressure.

• Types of reboilers: kettle reboilers, thermosiphon reboilers, forced circulation reboilers, plate-fin reboilers

• NPSH: Net Positive Suction Head, measures pump's abil...read more

QC tools are used to ensure quality of products. Types include statistical process control, Pareto charts, fishbone diagrams, and more.

• Statistical process control (SPC)

• Pareto charts

• Fishbone diagrams

• Control charts

• Histograms

• Scatter diagrams

• Check sheets

• Flowcharts

• Cause-and-effect diagrams

• Six Sigma

• Lean manufacturing

PLC stands for Programmable Logic Controller, which is a digital computer used for automation of electromechanical processes.

• PLC is used to control machinery in manufacturing processes.

• It uses a programmable memory to store instructions and specific functions.

• PLCs are commonly used in industries like automotive, food processing, and packaging.

• They can be programmed using ladder logic, function block diagrams, or structured text.

• PLCs help in improving efficiency, reducing down...read more

Types of pumps include centrifugal, reciprocating, and rotary pumps. Types of columns include packed columns and tray columns.

• Centrifugal pump: uses centrifugal force to move fluid through the pump

• Reciprocating pump: uses a piston to move fluid through the pump

• Rotary pump: uses rotating mechanisms to move fluid through the pump

• Packed column: filled with packing material to increase surface area for separation processes

• Tray column: contains trays or plates to facilitate vapor-...read more

PDCA cycle is a continuous improvement method consisting of Plan, Do, Check, and Act stages.

• Plan: Identify the problem and plan a solution.

• Do: Implement the plan on a small scale.

• Check: Evaluate the results and compare them to the expected outcomes.

• Act: Take necessary actions based on the evaluation to improve the process.

• Example: A production team uses PDCA cycle to reduce defects in a manufacturing process.

Types of LAN cabling include twisted pair, coaxial, and fiber optic cables.

• Twisted pair cables: Most common type, with variations like Cat5, Cat6, and Cat7.

• Coaxial cables: Used for cable television and networking.

• Fiber optic cables: Transmit data using light pulses, offering high speed and long distance capabilities.