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SHYAM METALICS AND ENERGY
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SHYAM METALICS AND ENERGY Electrician Interview Questions and Answers
SHYAM METALICS AND ENERGY Electrician Interview Experiences
1 interview found
Anonymous
(4 Questions)
- Q1. What methods can be used to determine the RPM of a motor?
- Ans.
Various methods exist to measure motor RPM, including tachometers, frequency counters, and optical sensors.
Tachometer: A device that directly measures the rotational speed of the motor shaft.
Frequency Counter: Measures the frequency of the motor's output signal, which can be converted to RPM.
Optical Sensor: Uses light beams to detect the rotation of a marked disk attached to the motor.
Stroboscope: A flashing light that...
- Q2. What are the safety device system of a conveyor line?
- Ans.
Safety devices in conveyor systems prevent accidents and ensure smooth operation, protecting both workers and equipment.
Emergency Stop Buttons: Allow immediate shutdown of the conveyor in case of an emergency.
Safety Guards: Physical barriers that prevent access to moving parts, reducing the risk of injury.
Photoelectric Sensors: Detect objects or personnel in the conveyor's path, stopping operation if necessary.
Overload...
- Q3. What is negative charge of Esp system electrode?
- Q4. What is colour of healthy and unhealthy silica gel?
- Ans.
Healthy silica gel is typically blue or orange, while unhealthy silica gel turns pink or green, indicating moisture absorption.
Healthy silica gel is often blue or orange, indicating it is dry.
Unhealthy silica gel turns pink or green when it absorbs moisture.
Blue silica gel contains cobalt chloride, which changes color when wet.
Orange silica gel is a safer alternative that changes from orange to green when saturated.
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I applied via Walk-in and was interviewed before Apr 2020. There was 1 interview round.
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4 Questions
- Q1. What is transformer
- Ans.
A transformer is an electrical device that transfers electrical energy from one circuit to another through electromagnetic induction.
Transformers are used to increase or decrease the voltage of an alternating current (AC) power supply.
They consist of two coils of wire, known as the primary and secondary coils, which are wrapped around a magnetic core.
When an AC voltage is applied to the primary coil, it creates a magne...
- Q2. And type of breker
- Ans.
The type of breaker used depends on the electrical load and the circuit requirements.
The most common types of breakers are standard, AFCI, GFCI, and dual-function.
Standard breakers are used for general-purpose circuits.
AFCI breakers are used for circuits that power bedrooms and living rooms.
GFCI breakers are used for circuits that power bathrooms, kitchens, and outdoor areas.
Dual-function breakers combine AFCI and GFCI...
- Q3. Type of conductor
- Ans.
Conductors are materials that allow electricity to flow through them. There are different types of conductors used in electrical systems.
Copper is the most commonly used conductor in electrical wiring
Aluminum is also used as a conductor, especially in high voltage power transmission
Silver is the best conductor, but it is too expensive for most applications
Gold is also a good conductor, but it is even more expensive tha...
- Q4. Difference of mcb and mccb
- Ans.
MCB is a miniature circuit breaker while MCCB is a molded case circuit breaker.
MCB is used for low current applications while MCCB is used for high current applications.
MCB is rated up to 100 amps while MCCB can be rated up to 2500 amps.
MCCB has adjustable trip settings while MCB does not.
MCCB is more expensive than MCB.
Examples of MCB brands include Legrand and Schneider while examples of MCCB brands include Siemens a
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I applied via Naukri.com and was interviewed before Mar 2021. There were 2 interview rounds.
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Study high school and iti electricians
I applied via Naukri.com and was interviewed before May 2021. There were 2 interview rounds.
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Interview Questionnaire
3 Questions
- Q1. What is contractor.?
- Ans.
A contractor is a person or company hired to perform a specific task or project for a client.
Contractors are often hired for construction projects, electrical work, plumbing, and other specialized tasks.
They are typically paid on a project-by-project basis, rather than receiving a salary or hourly wage.
Contractors may work independently or as part of a larger company.
They are responsible for providing their own tools, ...
- Q2. What is rectifier.?
- Ans.
A rectifier is an electrical device that converts alternating current (AC) to direct current (DC).
Rectifiers are commonly used in power supplies for electronic devices.
They can be made using diodes or other semiconductor devices.
Rectifiers are essential for many electronic devices to function properly.
Examples of rectifiers include bridge rectifiers, half-wave rectifiers, and full-wave rectifiers.
- Q3. What is vvF...?
- Ans.
vvF is not a recognized term in the field of electrical engineering.
vvF is not a standard unit of measurement or abbreviation in the electrical field.
It is possible that the interviewer made a mistake or was testing the candidate's ability to admit when they don't know something.
The candidate could respond by politely asking for clarification or admitting that they are not familiar with the term.
Selected
I applied via Walk-in and was interviewed in Dec 2024. There were 2 interview rounds.
A tool that measures a person's abilities, skills, and potential to succeed in a given activity
Coding tests are typically programming challenges that help technical recruiters test programming skills and competencies of a developer or programmer.
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- Transformers
- Substation
Selected
I applied via Campus Placement and was interviewed in Feb 2024. There were 2 interview rounds.
(1 Question)
- Q1. Tell me about yourself I am Ashutosh Singh
I am Ashutosh Singh
Experience 9 years
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Interview Questionnaire
1 Question
- Q1. How many distance between core and armature in ht motor
- Ans.
The distance between the core and armature in an HT motor varies depending on the specific motor design.
The distance between the core and armature is determined by the motor manufacturer and can vary based on factors such as motor size, voltage rating, and application.
In general, the core and armature are designed to be close enough to ensure efficient magnetic coupling but far enough to prevent physical contact and fr...
I applied via Job Fair and was interviewed in Jan 2023. There were 3 interview rounds.
(3 Questions)
- Q1. Tum is company main q kam karna chahta ho
- Q2. Tum is company kye liye kay kar sakte ho
- Q3. Kay tum is company ko or aage le ja sakte ho
(2 Questions)
- Q1. Aap adani group ko kaha tak pohca sakte ho?
- Q2. Jaha tak pohce jaye
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(11 Questions)
- Q1. Electrical motor, lights, panel maintenance
- Q2. What is different between MCB and DOL starter ?
- Ans.
MCB and DOL starter are both electrical devices used for protection and control, but they have different functions and applications.
MCB stands for Miniature Circuit Breaker and is used for circuit protection against overcurrents and short circuits.
DOL starter stands for Direct-On-Line starter and is used for starting and stopping motors.
MCB is a switch that automatically trips and disconnects the circuit when an overcu...
- Q3. What is electrical motor ?
- Ans.
An electrical motor is a device that converts electrical energy into mechanical energy to perform work.
Electrical motors are used in various applications such as industrial machinery, household appliances, and vehicles.
They work on the principle of electromagnetic induction, where a current-carrying conductor experiences a force in the presence of a magnetic field.
There are different types of electrical motors, includi...
- Q4. What is power factor?
- Ans.
Power factor is a measure of how effectively electrical power is being used in a circuit.
Power factor is the ratio of real power (in watts) to apparent power (in volt-amperes).
It indicates the efficiency of electrical power consumption in a circuit.
A power factor of 1 means all the power is being used effectively, while a power factor less than 1 indicates wastage of power.
Inductive loads like motors and transformers h...
- Q5. Make a DOL starter circuit diagram?
- Ans.
A DOL starter circuit diagram is used to control the starting and stopping of an electric motor.
DOL stands for Direct-On-Line.
The circuit consists of a contactor, overload relay, and start and stop buttons.
When the start button is pressed, the contactor closes and power is supplied directly to the motor.
The overload relay protects the motor from excessive current.
The stop button opens the contactor and stops the motor.
- Q6. What are the sources of electricity ?
- Ans.
The sources of electricity include fossil fuels, nuclear power, renewable energy sources, and batteries.
Fossil fuels such as coal, oil, and natural gas are commonly used to generate electricity in power plants.
Nuclear power plants use nuclear reactions to produce electricity.
Renewable energy sources like solar power, wind power, hydroelectric power, and geothermal power can generate electricity.
Batteries can store and
- Q7. What are insulators ?
- Ans.
Insulators are materials that do not conduct electricity.
Insulators are substances that prevent the flow of electric current.
They have high resistance to the flow of electrons.
Insulators are used to protect against electric shocks and to prevent short circuits.
Examples of insulators include rubber, plastic, glass, and ceramic.
Insulators are commonly used in electrical wiring, circuit boards, and electrical equipment.
- Q8. Where are semiconductors used ?
- Ans.
Semiconductors are used in various electronic devices and systems.
Semiconductors are used in computers and other digital devices for processing and memory.
They are used in telecommunication systems for signal amplification and transmission.
Semiconductors are used in power electronics for controlling and converting electrical energy.
They are used in lighting systems such as LEDs and OLEDs.
Semiconductors are used in sens...
- Q9. What is resistance ?
- Ans.
Resistance is the measure of opposition to the flow of electric current in a material.
Resistance is measured in ohms (Ω).
It is caused by the collisions of electrons with atoms and other electrons in the material.
Resistance can be influenced by factors such as temperature, length, and cross-sectional area of the material.
Ohm's Law states that the current flowing through a conductor is directly proportional to the voltag...
- Q10. What is the unit of resistance ?
- Ans.
The unit of resistance is ohm (Ω).
The unit of resistance is named after the German physicist Georg Simon Ohm.
Resistance is a measure of how much a material or device opposes the flow of electric current.
The symbol for ohm is the Greek letter omega (Ω).
Resistance can be calculated using Ohm's Law: R = V/I, where R is resistance, V is voltage, and I is current.
Common examples of resistance include resistors, light bulbs,
- Q11. Which is more dangerous-shock due to AC or DC?
- Ans.
AC and DC shocks can both be dangerous, but AC shocks are generally considered more dangerous.
AC shocks can cause muscle contractions, making it difficult to let go of the source of the shock.
AC shocks can also cause ventricular fibrillation, a potentially fatal condition where the heart's rhythm becomes irregular.
DC shocks are more likely to cause burns and tissue damage at the point of contact.
However, the severity o...
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