10+ zenda Interview Questions and Answers

MTTR (Mean Time to Repair) and MTRF (Mean Time to Repair Failure) are key metrics in industrial maintenance and reliability.

• MTTR measures the average time taken to repair a failed system or component, impacting downtime.

• MTRF indicates the average time between failures, helping assess reliability and maintenance needs.

• For example, a manufacturing plant with a low MTTR can quickly resume production after equipment failure.

• High MTRF suggests a reliable system, reducing the frequ...read more

Slip ring motors allow for variable speed and torque, while squirrel cage motors are simpler and more robust for fixed speed applications.

• Slip ring induction motors have external resistors for speed control, while squirrel cage motors do not.

• Slip ring motors are used in applications requiring high starting torque, like cranes and elevators.

• Squirrel cage motors are more common in household appliances and fans due to their simplicity and reliability.

• Slip ring motors can handle ...read more

Implementing safety protocols, training, and regular inspections can significantly reduce accidents in electrical workplaces.

• Conduct regular safety training sessions for all employees to ensure they understand electrical hazards and safety practices.

• Use personal protective equipment (PPE) such as insulated gloves, helmets, and safety goggles to protect workers from electrical shocks.

• Implement lockout/tagout (LOTO) procedures to ensure that electrical systems are properly shut...read more

Power factor measures the efficiency of electrical power usage, impacting energy costs and system performance.

• Power factor (PF) is the ratio of real power (kW) to apparent power (kVA) in a circuit.

• A PF of 1 indicates all power is effectively used; lower PF means wasted energy.

• Utilities may charge higher rates for low PF, as it requires more capacity to deliver the same real power.

• For example, a factory with a PF of 0.7 may pay more than one with a PF of 0.9 for the same energ...read more

Preventive maintenance is essential to ensure equipment reliability, reduce downtime, and extend asset lifespan.

• Reduces unexpected breakdowns: Regular checks can identify issues before they escalate, like replacing worn-out parts.

• Increases equipment lifespan: Scheduled maintenance helps maintain optimal performance, such as lubricating machinery to prevent wear.

• Enhances safety: Regular inspections can prevent accidents, like checking safety equipment in a factory.

• Improves eff...read more

Stainless steel has higher corrosion resistance and contains more chromium than mild steel.

• Stainless steel has a higher percentage of chromium than mild steel

• Stainless steel is more corrosion-resistant than mild steel

• Stainless steel is more expensive than mild steel

• Mild steel is easier to weld than stainless steel

• Stainless steel is commonly used in food processing and medical equipment

Yes, production planning software can work with MS Excel.

• Production planning software can be integrated with MS Excel to create spreadsheets for tracking production schedules and inventory levels.

• Excel can be used to create Gantt charts and other visual aids for production planning.

• Data from production planning software can be exported to Excel for further analysis and reporting.

• Examples of production planning software that work with Excel include SAP, Oracle, and Microsoft D...read more

KPI (Key Performance Indicator) measures success, while KRA (Key Result Area) defines specific responsibilities for achieving goals.

• KPI: Quantifiable metrics to evaluate performance, e.g., sales growth rate.

• KRA: Specific areas of responsibility, e.g., customer satisfaction management.

• KPIs help track progress towards goals, while KRAs outline what needs to be achieved.

• Example of KPI: Number of defects in a product; Example of KRA: Quality assurance.

AC and DC are two types of electrical current. AC changes direction periodically while DC flows in one direction only.

• AC stands for Alternating Current and DC stands for Direct Current

• AC changes direction periodically while DC flows in one direction only

• AC is used for power transmission over long distances while DC is used for electronic devices

• AC voltage can be easily changed using a transformer while DC voltage cannot be changed easily

• Examples of AC devices include househol...read more

Peeling operation is a process of removing the outer layer of a material using a cutting tool or chemical solution.

• Peeling operation is commonly used in the food industry to remove the skin of fruits and vegetables.

• It is also used in the manufacturing of electronic components to remove the outer layer of insulation from wires.

• Chemical peeling is a cosmetic procedure used to improve the appearance of skin by removing the outer layer of dead skin cells.

• Peeling can be done manua...read more

Procurement is the process of finding, acquiring, and buying goods, services, or works from an external source.

• Involves sourcing and selecting suppliers

• Negotiating contracts and prices

• Managing supplier relationships

• Ensuring timely delivery of goods/services

• Strategic procurement focuses on long-term partnerships and value creation

Negotiation involves preparation, active listening, building relationships, and finding win-win solutions.

• Prepare by researching the market, knowing your goals and limits, and understanding the other party's needs.

• Listen actively to understand the other party's perspective and concerns.

• Build relationships by being respectful, honest, and transparent.

• Focus on finding win-win solutions that benefit both parties.

• Use negotiation tactics like anchoring, mirroring, and framing to i...read more