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Chennai Radha Engineering Works
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I applied via Recruitment Consulltant and was interviewed before Apr 2022. There were 2 interview rounds.
Safety devices are mechanisms or equipment designed to prevent accidents or injuries in the workplace.
Safety devices can include things like emergency stop buttons, safety interlocks, guards, and protective barriers.
They are used to protect workers from hazards such as moving machinery, electrical shock, and chemical exposure.
Safety devices must be properly installed, maintained, and used in order to be effective.
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I applied via Company Website
Electrician test and all questions
posted on 14 Jan 2023
I applied via Indeed and was interviewed in Dec 2022. There were 2 interview rounds.
An electrical panel with a braking system is a safety feature that automatically stops the flow of electricity in case of an emergency or malfunction.
The braking system in an electrical panel is designed to prevent electrical accidents and protect both people and equipment.
It works by detecting abnormal conditions such as short circuits, overloads, or ground faults, and immediately cutting off the power supply.
This hel...
I applied via Recruitment Consultant and was interviewed in Dec 2021. There was 1 interview round.
I applied via Walk-in and was interviewed before Aug 2022. There were 2 interview rounds.
posted on 11 Mar 2022
I applied via Approached by Company and was interviewed before Mar 2021. There were 2 interview rounds.
CB operation and use refers to the operation and use of circuit breakers in electrical systems.
CBs are used to protect electrical systems from overloads and short circuits.
They work by interrupting the flow of current when a fault is detected.
CBs can be manually or automatically operated.
They come in different types, such as air, oil, vacuum, and SF6 CBs.
CBs are commonly used in residential, commercial, and industrial
posted on 29 Oct 2023
There are four types of DG (Diesel Generator) checks: daily, weekly, monthly, and annual.
Daily check involves inspecting fuel levels, oil levels, coolant levels, and battery condition.
Weekly check includes checking for any leaks, testing the battery, and verifying the operation of safety features.
Monthly check involves cleaning the air filter, checking the exhaust system, and testing the automatic transfer switch.
Annua...
There are many types of sensors used in electrical systems, including temperature sensors, pressure sensors, proximity sensors, etc.
Temperature sensors
Pressure sensors
Proximity sensors
Motion sensors
Light sensors
Single phase and three phase are two types of electrical power distribution systems.
Single phase has one live conductor and one neutral conductor, while three phase has three live conductors and one neutral conductor.
Single phase is commonly used in residential and small commercial applications, while three phase is used in industrial and large commercial applications.
Single phase power supply is suitable for low power...
R, Y, B phases are the three phases of AC power supply. They differ in their phase angle and voltage level.
R phase has a phase angle of 0 degrees and is usually connected to the red wire.
Y phase has a phase angle of 120 degrees and is usually connected to the yellow wire.
B phase has a phase angle of 240 degrees and is usually connected to the blue wire.
The voltage level of each phase is the same, but they are out of ph...
In series, voltage adds up while current remains the same. In parallel, voltage remains the same while current adds up.
In series, batteries are connected end-to-end, positive to negative. In parallel, batteries are connected positive to positive and negative to negative.
Series connection increases voltage but does not increase current. Parallel connection increases current but does not increase voltage.
Series connectio...
Periodic maintenance of batteries is crucial for their longevity and optimal performance.
Check the battery terminals for corrosion and clean them if necessary
Inspect the battery case for any cracks or damage
Ensure that the battery is securely fastened in place
Check the electrolyte level and top up with distilled water if required
Test the battery voltage and recharge if necessary
A faulty battery can be identified by checking its voltage, capacity, and physical appearance.
Check the voltage of the battery using a multimeter
Test the capacity of the battery using a battery tester
Inspect the physical appearance of the battery for any signs of damage or leakage
Check the battery terminals for corrosion or loose connections
Compare the battery's performance to its specifications
FUSE, MCB, ELCB, and RCCB are all electrical protection devices, but they differ in their functions and applications.
FUSE is a simple device that protects electrical circuits from overloading or short-circuiting by melting and breaking the circuit.
MCB (Miniature Circuit Breaker) is an automatic switch that trips and cuts off the power supply when there is an overload or short-circuit.
ELCB (Earth Leakage Circuit Breaker...
A DOL starter is a direct online motor starter that provides full voltage to the motor.
Consists of a contactor, overload relay, and start/stop buttons
The contactor connects the motor to the power supply
The overload relay protects the motor from overloading
The start/stop buttons control the on/off function of the motor
Used for small motors with low starting current
Not suitable for large motors or motors with high starti
posted on 26 Oct 2023
I appeared for an interview before Oct 2022.
AC and DC both have their own challenges, but AC is generally considered more difficult due to its changing voltage and frequency.
AC involves constantly changing voltage and frequency, which can be more challenging to work with compared to the steady flow of DC.
AC circuits require additional components like capacitors and inductors to manage voltage and current fluctuations.
DC circuits are simpler to understand and tro...
posted on 18 Oct 2021
I appeared for an interview before Oct 2020.
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Assistant Engineer
154
salaries
| ₹1.5 L/yr - ₹5.6 L/yr |
Engineer
87
salaries
| ₹2.4 L/yr - ₹6.6 L/yr |
Electrical Engineer
73
salaries
| ₹1.8 L/yr - ₹4.8 L/yr |
Junior Engineer
65
salaries
| ₹1.5 L/yr - ₹3.5 L/yr |
Shift Incharge
55
salaries
| ₹2 L/yr - ₹6.5 L/yr |
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