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Voltech Electrical Engineer Interview Questions and Answers
Voltech Electrical Engineer Interview Experiences
1 interview found
(2 Questions)
- Q1. What is Transformer?
- Ans.
A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction.
Consists of two coils of wire, known as primary and secondary coils
Works on the principle of electromagnetic induction
Used to step up or step down voltage levels in electrical circuits
Commonly used in power distribution systems
- Q2. What is transformer Protection
- Ans.
Transformer protection refers to the measures taken to prevent damage to transformers from faults or abnormal operating conditions.
Transformer protection devices include overcurrent relays, differential relays, and Buchholz relays.
Overcurrent relays protect against overloads and short circuits.
Differential relays compare the current entering and leaving the transformer to detect internal faults.
Buchholz relays detect g...
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Electrical Site Engineer Interview Questions & Answers
Polycab Wires
Anonymous
posted on 15 Jun 2021
I applied via Referral and was interviewed before Jun 2020. There was 1 interview round.
Interview Questionnaire
10 Questions
- Q1. Transmission voltage of 11 kv is normally used for distances up to...km
- Q2. What is the maximum range of voltage rating for belted cables are in used?
- Ans.
The maximum range of voltage rating for belted cables varies depending on the specific application and industry standards.
The voltage rating of belted cables can range from low voltage (LV) to high voltage (HV).
LV belted cables typically have a voltage rating of up to 1 kV.
HV belted cables can have voltage ratings ranging from 1 kV to several hundred kilovolts (kV).
The exact voltage rating of belted cables is determine...
- Q3. The distribution systems are mostly used in India
- Q4. Conventional flow assumes charges flow from
- Ans.
Conventional flow assumes charges flow from positive to negative terminals.
Conventional flow is based on the assumption that current flows from positive to negative terminals.
This convention is used in electrical engineering and circuit analysis.
For example, in a battery-powered circuit, conventional flow assumes that electrons flow from the positive terminal of the battery to the negative terminal.
- Q5. How much torque a synchronous motor can develop?
- Ans.
The torque a synchronous motor can develop depends on its size and design.
The torque is directly proportional to the current supplied to the motor.
The torque also depends on the strength of the magnetic field produced by the rotor.
Larger synchronous motors can develop higher torque than smaller ones.
For example, a 500 kW synchronous motor can develop a torque of around 1500 Nm.
The torque can also be affected by factors
- Q6. An underground system cannot be operated above
- Q7. What can protect a cable against mechanical enjury?
- Ans.
Cable protectors can safeguard cables against mechanical injury.
Cable protectors can be used to cover and shield cables from physical damage.
Flexible conduits or cable trays can be installed to provide a protective pathway for cables.
Using cable ties or clamps to secure cables in place can prevent them from being accidentally pulled or strained.
Applying cable armor or armored cables can provide additional protection ag...
- Q8. Earth wire or ground wire is made of
- Ans.
The earth wire or ground wire is typically made of copper or aluminum.
The earth wire is an essential safety component in electrical systems.
It is used to provide a path for electrical current to safely discharge into the ground.
Copper is commonly used for earth wires due to its excellent conductivity and corrosion resistance.
Aluminum is also used in some cases, especially for overhead power lines.
The earth wire is usua...
- Q9. Average resistance of a human body is
- Ans.
The average resistance of a human body is approximately 1,000 ohms.
The resistance of a human body can vary depending on factors such as skin moisture, contact area, and voltage applied.
Dry skin has higher resistance compared to moist skin.
The resistance can be affected by the presence of sweat, water, or other conductive substances on the skin.
The resistance decreases when the contact area between the body and a conduc...
- Q10. The main function of fuse is to
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Electrical Site Engineer Interview Questions & Answers
KEI Industries
BHARATENDU DIXIT
posted on 8 Nov 2023
Selected
I applied via Naukri.com and was interviewed in May 2023. There were 4 interview rounds.
About your work style and work management
(4 Questions)
- Q1. Test your deep technical knowledge of your work
- Q2. Transformer working principle.
- Ans.
Transformer works 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 are used to st...
- Q3. Proses of new meter installation.
- Ans.
The process of new meter installation involves site survey, meter selection, installation, testing, and commissioning.
Site survey to determine the location and requirements for the new meter
Meter selection based on the specific needs and specifications of the site
Installation of the new meter by qualified electricians or engineers
Testing the meter to ensure accurate readings and proper functionality
Commissioning the me...
- Q4. What is the Proses of LOTO? How it's works?
- Ans.
LOTO stands for Lockout/Tagout. It is a safety procedure used to ensure that dangerous machines are properly shut off and not started up again prior to the completion of maintenance or servicing work.
LOTO involves isolating energy sources, locking them out, and tagging them to indicate that maintenance work is being performed.
Workers involved in the maintenance work are the ones who apply the locks and tags, ensuring t...
(4 Questions)
- Q1. Discussed about your salary
- Q2. Why you want this job?
- Q3. Why we hire you?
- Q4. Why are you leaving your previous company?
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I applied via Naukri.com and was interviewed before Jun 2020. There was 1 interview round.
Interview Questionnaire
3 Questions
- Q1. Material used in mcb components
- Ans.
MCB components are typically made of materials such as copper, silver, thermoplastics, and ceramics.
Copper is commonly used for conducting electricity in MCBs.
Silver is sometimes used as a contact material for better conductivity.
Thermoplastics like polyamide are used for insulation and housing of MCB components.
Ceramics are used for arc chutes to extinguish the arc when the MCB trips.
Other materials like steel, brass,...
- Q2. How many manpower you are handled
- Q3. I replied them 200
Interview Preparation Tips
I applied via Campus Placement and was interviewed before Apr 2019. There was 1 interview round.
Interview Questionnaire
4 Questions
- Q1. What is your key achievement ? Either your study or professional
- Q2. What you think about company ?
- Q3. Where you see yourself in company ?
- Q4. Why we select you?
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Opportunities never ends
Senior Engineer Interview Questions & Answers
CG Power and Industrial Solutions
posted on 24 Apr 2021
I applied via Naukri.com and was interviewed before Apr 2020. There were 3 interview rounds.
Interview Questionnaire
2 Questions
- Q1. About circuit breaker, transformer.
- Q2. Single line diagrams, layout, substation calculation.
Interview Preparation Tips
I applied via Company Website and was interviewed in Jul 2021. There were 3 interview rounds.
(1 Question)
- Q1. Tell me about yourself.
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(2 Questions)
- Q1. Questions about high voltage and high current components.
- Q2. Questions on different topologies used in power supplies
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Selected
I appeared for an interview in Dec 2022.
(6 Questions)
- Q1. How do u configure switch?
- Ans.
Switch configuration involves setting up VLANs, port security, QoS, and other settings to optimize network performance.
Access the switch's command line interface (CLI) using a console cable or remote access software
Configure VLANs to segment network traffic and improve security
Enable port security to prevent unauthorized access to the network
Set up Quality of Service (QoS) to prioritize network traffic and ensure criti...
- Q2. What is L2 and L3 Switch and it's differences
- Ans.
L2 and L3 switches are network devices used for packet switching. L2 operates at the data link layer and L3 at the network layer.
L2 switch operates at the data link layer and forwards packets based on MAC addresses
L3 switch operates at the network layer and forwards packets based on IP addresses
L2 switch is used for LAN networks while L3 switch is used for both LAN and WAN networks
L2 switch is faster than L3 switch as ...
- Q3. What is MPLS, where it is used
- Ans.
MPLS is a protocol used for efficient packet forwarding in a network. It is used in WANs and service provider networks.
MPLS stands for Multiprotocol Label Switching
It is used to improve the speed and efficiency of network traffic routing
MPLS uses labels to identify the path that packets should take through the network
It is commonly used in WANs and service provider networks to provide Quality of Service (QoS) and traff...
- Q4. Explain about VLANS and how do we create
- Ans.
VLANs are virtual LANs that allow network administrators to group devices together based on their functions or departments.
VLANs are used to segment a network into smaller, more manageable groups.
They can be created using network switches or routers.
Each VLAN has its own broadcast domain and can be configured with its own security policies.
VLANs can be created based on different criteria such as department, location, o...
- Q5. Why do we get hired
- Q6. What do u know about the company
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Skills evaluated in this interview
Selected
I applied via Naukri.com and was interviewed before Jan 2023. There were 4 interview rounds.
(2 Questions)
- Q1. Basic questions
- Q2. Previous employer related
(2 Questions)
- Q1. Technical questions
- Q2. Machine related
Over all plant related
(1 Question)
- Q1. Man power handle and previous employer related
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Voltech Electrical Engineer Interview Process
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Rating in categories
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Testing & Commissioning Engineer
188
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|  ₹1.1 L/yr - ₹8.5 L/yr |
|
Electrical Testing Commissioning Engineer
108
salaries
| ₹1.5 L/yr - ₹7 L/yr |
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Senior Testing Commissioning Engineer
79
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| ₹2 L/yr - ₹9.1 L/yr |
|
Senior Engineer
65
salaries
| ₹2.2 L/yr - ₹6 L/yr |
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Electrical Engineer
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| ₹1.5 L/yr - ₹6.2 L/yr |
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