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To row solve sub contractors billing, ensure accurate tracking of work completed, materials used, and hours worked.
Maintain detailed records of work completed by each subcontractor
Verify invoices against work completed and materials used
Track hours worked by subcontractors to ensure accurate billing
Address any discrepancies or issues promptly to avoid delays in payment
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posted on 10 Oct 2024
I applied via Company Website and was interviewed in Sep 2024. There were 2 interview rounds.
RPM stands for Revolutions Per Minute.
RPM stands for Revolutions Per Minute
It is a unit of rotational speed
Commonly used in the context of engines, motors, and other rotating machinery
There are various types of motors including DC motors, AC motors, stepper motors, and servo motors.
DC motors: used in applications where speed control is important, such as in electric vehicles.
AC motors: commonly used in household appliances and industrial machinery.
Stepper motors: used in applications requiring precise position control, like 3D printers.
Servo motors: used in robotics and automation for accurate contr
Earthing is the process of connecting electrical systems to the ground to prevent electric shock and protect equipment.
Earthing provides a path for fault currents to flow safely into the ground.
It helps in stabilizing voltage levels and protecting against lightning strikes.
Earthing is essential for safety in electrical systems to prevent electric shocks.
Examples of earthing systems include grounding rods, grounding pla
Insulators are materials that do not conduct electricity and are used to prevent the flow of current.
Insulators are materials with high resistivity, such as rubber, glass, porcelain, and plastic.
They are used to separate conductors in electrical systems to prevent short circuits.
Insulators are crucial for safety in electrical installations to avoid electric shocks and fires.
I applied via Company Website
Electrician test and all questions
I applied via Company Website and was interviewed in Mar 2023. There were 3 interview rounds.
Normal introduction and interview
There are various types of electrical motors including AC motors, DC motors, synchronous motors, and induction motors.
AC motors: commonly used in household appliances and industrial applications
DC motors: used in applications where speed control is important, such as in electric vehicles
Synchronous motors: used in applications where precise speed control is required, such as in clocks and timers
Induction motors: widely...
Protection of transformer involves measures to prevent damage from overcurrent, overvoltage, and overheating.
Use overcurrent protection devices such as fuses and circuit breakers to prevent damage from excessive current flow.
Install overvoltage protection devices like surge arresters to safeguard against voltage spikes.
Implement temperature monitoring systems to prevent overheating, such as thermal sensors and cooling ...
DOL starter stands for Direct-On-Line starter, used to start motors by directly connecting them to the power supply.
DOL starter is the simplest and most common type of motor starter.
It directly connects the motor to the power supply without any intermediate starting method.
It provides full voltage to the motor during starting, which can cause high inrush current.
DOL starters are suitable for small to medium-sized motor...
APFC PANEL stands for Automatic Power Factor Correction Panel, used to maintain power factor in electrical systems.
APFC PANEL automatically monitors and corrects the power factor of electrical systems.
It helps in reducing electricity bills by maintaining a high power factor.
APFC PANELs are commonly used in industries and commercial buildings.
They consist of capacitors that are switched on and off based on the load requ...
posted on 25 Oct 2023
I was interviewed in Jul 2022.
HVDC is a technology used to transmit high voltage DC power over long distances. Offshore connections refer to power transmission from offshore wind farms.
HVDC is more efficient than AC transmission over long distances
Offshore connections require specialized equipment and installation techniques
HVDC is used for offshore connections to transmit power from offshore wind farms to the mainland
Examples of HVDC projects incl...
posted on 27 Jun 2022
I applied via Recruitment Consulltant
Electrical panels can be used by various types of contractors.
Electrical contractors are the most common type of contractors who use electrical panels.
General contractors may also use electrical panels for specific projects.
HVAC contractors may require electrical panels for their heating and cooling systems.
Plumbing contractors may need electrical panels for water heaters or pumps.
Fire protection contractors may use el...
Various types of MCBs are used in the panel.
Type B MCB for general purpose circuits
Type C MCB for circuits with inductive loads
Type D MCB for circuits with high inrush currents
Type K MCB for circuits with high inrush currents and motors
Type Z MCB for circuits with DC components
Type F MCB for circuits with sensitive equipment
Type G MCB for circuits with surge protection
Type L MCB for lighting circuits
AC current changes direction periodically while DC current flows in one direction only.
AC current is used in household appliances while DC current is used in batteries and electronic devices.
AC current can be easily transformed into different voltages using a transformer while DC current cannot.
AC current is more dangerous to humans than DC current because it can cause muscle contractions.
DC current is more efficient f...
Voltage is the measure of electric potential difference between two points in a circuit.
Voltage is measured in volts (V).
It is the force that drives electric current through a circuit.
Voltage can be positive or negative depending on the direction of the current flow.
A battery provides a voltage difference between its terminals to power a circuit.
Voltage drop occurs when there is a decrease in voltage along a circuit du
The question is unclear. Please provide more context.
Please provide more information about the fault.
Are you asking about fault-finding techniques or the number of people required to find a fault?
Without more context, it is difficult to provide a specific answer.
Transformer safety parts include fuses, circuit breakers, and grounding systems.
Fuses protect against overcurrent and short circuits.
Circuit breakers protect against overloads and faults.
Grounding systems prevent electrical shock and protect equipment.
Other safety parts may include temperature sensors and pressure relief devices.
Capacitors are used to store and release electrical energy in circuits.
Capacitors can filter out noise and stabilize voltage in power supplies.
They can also be used in timing circuits and oscillators.
Capacitors are commonly used in audio equipment to filter out unwanted frequencies.
They can also be used in electric motors to improve power factor and efficiency.
Capacitors are essential components in electronic devices a
A sun t relay is a type of time-delay relay used in electrical systems.
It is used to control the operation of a circuit based on a time delay.
It is commonly used in lighting systems to delay turning on or off.
It can also be used in motor control circuits to prevent damage from sudden power surges.
The delay time can be adjusted to suit the specific needs of the circuit.
It works by using a small current to charge a capac...
Under voltage can cause major electrical problems.
Under voltage can cause equipment damage and failure.
It can also lead to power outages and disruptions.
Proper monitoring and maintenance can prevent under voltage issues.
Examples of under voltage problems include brownouts and voltage sags.
posted on 26 Aug 2022
I applied via Referral and was interviewed in Jul 2022. There was 1 interview round.
Documents required for installation of a flow meter
Manufacturer's installation manual
Piping and instrumentation diagram (P&ID)
Electrical wiring diagram
Calibration certificate
Material test certificate (MTC) for piping
Safety data sheet (SDS) for chemicals used in installation
Permit for installation
Quality assurance plan (QAP)
As-built drawings
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
based on 1 interview
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