Wheels
Vijay Sales Interview Questions and Answers
Q1. Difference between RCCB and MCB
RCCB is a Residual Current Circuit Breaker that trips when it detects a leakage current, while MCB is a Miniature Circuit Breaker that trips when there is an overload or short circuit.
RCCB protects against electric shock by detecting imbalance in current flow, commonly used in wet areas like bathrooms.
MCB protects against overloads and short circuits, commonly used in residential and commercial buildings.
RCCB has a sensitivity to detect small leakage currents, while MCB has a...read more
Q2. Do you know Hydralic circuits
Yes, I have knowledge of hydraulic circuits.
I have experience in designing and troubleshooting hydraulic circuits
I am familiar with hydraulic components such as pumps, valves, and actuators
I have worked with hydraulic systems in various industries including manufacturing and construction
I understand the principles of fluid mechanics and how they apply to hydraulic systems
Q3. Vccb work principle an
Vccb stands for Vacuum Circuit Breaker. It works on the principle of extinguishing the arc in a vacuum environment.
VCCB uses a vacuum as the arc quenching medium instead of air or oil.
When the contacts of the breaker open, the arc is drawn into the vacuum and extinguished.
This method ensures faster arc extinction and reduces the risk of fire hazards.
VCCBs are commonly used in high voltage applications where quick and reliable arc extinction is crucial.
Q4. Maintenance work with planing
Maintenance work with planning involves creating a schedule and strategy for upkeep and repairs.
Developing a maintenance plan based on equipment needs and usage
Scheduling regular inspections and preventative maintenance
Coordinating with other departments to minimize downtime
Tracking maintenance history and identifying areas for improvement
Using data analysis to optimize maintenance processes
Example: Creating a weekly schedule for equipment checks and repairs
Example: Implement...read more
Q5. Transformers working principle
Transformers work on the principle of electromagnetic induction to transfer electrical energy between two or more circuits.
Transformers have two coils of wire, known as primary and secondary coils.
When an alternating current flows through the primary coil, it creates a changing magnetic field.
This changing magnetic field induces a voltage in the secondary coil, transferring electrical energy.
Transformers can step up or step down voltage levels depending on the number of turns...read more
Q6. Type of MCB and relay
Miniature Circuit Breakers (MCBs) and relays are commonly used in electrical systems for protection and control.
MCBs are used to protect electrical circuits from overloads and short circuits by automatically switching off the circuit when a fault is detected.
Relays are used to control the operation of electrical circuits by opening or closing contacts based on input signals.
Common types of MCBs include single-pole, double-pole, and triple-pole configurations.
Examples of relay...read more
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