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I applied via Naukri.com and was interviewed in Feb 2021. There was 1 interview round.
The full form of A.C. current is Alternating Current.
A.C. current stands for Alternating Current.
It is a type of electric current that periodically reverses direction.
It is commonly used in household electrical systems and power grids.
Unlike direct current (D.C.), A.C. current can easily be transformed to different voltage levels.
Examples of A.C. current include the electricity supplied by utility companies and the pow
The full form of D.C. current is Direct Current.
D.C. stands for Direct Current.
It is a type of electrical current that flows in one direction only.
It is commonly used in batteries and electronic devices.
The opposite of D.C. current is A.C. current, which alternates direction.
D.C. current is measured in amperes (A).
I applied via Walk-in and was interviewed in Aug 2020. There were 3 interview rounds.
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...
A motor is an electrical device that converts electrical energy into mechanical energy.
Motors are used in a variety of applications, from powering industrial machinery to driving household appliances.
There are different types of motors, including AC motors, DC motors, and stepper motors.
Motors can be controlled using various methods, such as variable frequency drives and soft starters.
Proper maintenance and inspection ...
A star delta starter is used to reduce the starting current of a motor.
The motor is initially connected in star configuration to reduce the voltage across each winding.
After a set time, the motor is switched to delta configuration for normal operation.
The control diagram includes a timer, contactors, and overload protection.
The timer delays the switching from star to delta configuration.
The contactors are used to switc...
DOL starter is used in single-phase induction motors and small three-phase motors.
DOL starter stands for Direct-On-Line starter.
It is used to start and stop the motor directly without any intermediate control.
It is commonly used in single-phase induction motors and small three-phase motors.
DOL starter provides full voltage to the motor during starting, which can cause high starting current.
It consists of a contactor, t...
The resistive load equation is used to calculate the power consumed by a resistive load.
The equation is P = V^2/R, where P is power, V is voltage, and R is resistance.
This equation is used in electrical engineering to determine the power consumption of resistive loads such as heaters and incandescent light bulbs.
The equation can also be rearranged to solve for voltage or resistance, depending on the information given.
I...
Asynchronous motors are used for various purposes due to their simple design and low cost.
Asynchronous motors are commonly used in industrial applications such as pumps, fans, and compressors.
They are also used in household appliances like washing machines and refrigerators.
Asynchronous motors are preferred for their low maintenance and high reliability.
They are also used in electric vehicles and hybrid cars.
Asynchrono...
Transformers are classified based on their construction, purpose, and voltage level.
Based on construction: core type, shell type, and Berry type
Based on purpose: power transformer, distribution transformer, isolation transformer, autotransformer, etc.
Based on voltage level: step-up transformer, step-down transformer, and isolation transformer
Other classifications: single-phase transformer, three-phase transformer, and ...
India has a total installed capacity of over 370 GW as of 2021.
India's power generation capacity has been growing rapidly in recent years
The country has set a target of achieving 450 GW of renewable energy capacity by 2030
India is one of the world's largest producers of renewable energy, with a capacity of over 100 GW
Coal still accounts for a significant portion of India's power generation, but the government is workin
Chopper circuits are used to convert a fixed DC voltage to a variable DC voltage.
Chopper circuits are also known as DC-DC converters.
They are used in applications such as battery charging, motor control, and renewable energy systems.
Chopper circuits use high-frequency switching to control the output voltage.
Examples of chopper circuits include buck converters, boost converters, and buck-boost converters.
I applied via Walk-in and was interviewed in Oct 2022. There were 2 interview rounds.
A 3 phase electrical system consists of three conductors carrying alternating current with a phase difference of 120 degrees.
Consists of three conductors carrying alternating current
Phases are 120 degrees apart
Commonly used in industrial and commercial applications
I applied via Naukri.com and was interviewed in Dec 2021. There were 3 interview rounds.
I applied via Company Website and was interviewed in Jul 2022. There was 1 interview round.
I applied via Company Website
TTR stands for Total Thickness Range and is required for powder coating process to ensure proper adhesion and durability.
TTR is the range of thickness of the substrate and any coatings applied to it
It is important for powder coating as it ensures proper adhesion and durability
If the TTR is too large, the coating may not adhere properly or may crack and peel over time
Examples of substrates with varying TTR include alumi
Detection and prevention poka-yoke refers to the use of techniques to identify and prevent errors in a process.
Poka-yoke is a Japanese term for mistake-proofing
Detection poka-yoke involves identifying errors as they occur
Prevention poka-yoke involves designing processes to prevent errors from occurring
Examples of poka-yoke include using checklists, color-coding, and physical barriers
Poka-yoke can improve quality, reduc
Decrease in pH can occur due to various factors in conversion coating.
Decrease in pH can be caused by the addition of an acid or acidic solution.
Presence of reactive metals in the coating can lead to a decrease in pH.
Contamination by organic materials or impurities can also lower the pH.
Chemical reactions during the conversion coating process may result in pH decrease.
Examples of conversion coatings include phosphating
To prepare 0.1 N H2SO4 & NaOH, calculate the required amount of solute and dissolve it in distilled water.
Calculate the molar mass of H2SO4 and NaOH
Determine the required amount of solute using the formula: N = (W/M) x (1000/V)
Dissolve the calculated amount of solute in distilled water to make 1 liter of solution
Standardize the solution using a primary standard
Use a burette to measure the volume of solution needed for
To cross verify 0.1 normality H2SO4, use a standard solution of NaOH and an indicator.
Prepare a standard solution of NaOH of known concentration.
Add a few drops of an indicator such as phenolphthalein to the H2SO4 solution.
Titrate the H2SO4 solution with the NaOH solution until the endpoint is reached.
The endpoint is when the indicator changes color, indicating that all the H2SO4 has reacted with the NaOH.
Calculate the...
Prepare a pH buffer solution as per defined standard in tablet.
Determine the required pH value and buffer capacity
Select the appropriate buffer system and calculate the required amounts of buffer components
Dissolve the buffer components in water and adjust the pH as necessary
Check the pH and adjust if necessary
Filter the solution and store in a clean container
Use a calibrated pH meter to verify the pH of the solution
I applied via Recruitment Consulltant and was interviewed before Oct 2022. There were 3 interview rounds.
A relay holding circuit diagram is used to keep the relay in the energized state even after the control signal is removed.
The circuit typically includes a holding contact that maintains the relay coil energized.
A latching relay can also be used for holding without continuous power supply.
Examples: ladder logic diagram with a holding contact, latching relay circuit diagram.
PNP and NPN are types of bipolar junction transistors commonly used in electronic circuits.
PNP transistor has a layer of N-type semiconductor between two layers of P-type semiconductor, while NPN transistor has a layer of P-type semiconductor between two layers of N-type semiconductor.
In a PNP transistor, current flows from the emitter to the base and then to the collector, while in an NPN transistor, current flows fro...
There are various types of sensors used for different purposes.
Temperature sensors (e.g. thermocouples, thermistors)
Pressure sensors (e.g. piezoelectric sensors)
Motion sensors (e.g. accelerometers, gyroscopes)
Proximity sensors (e.g. ultrasonic sensors)
Light sensors (e.g. photodiodes, phototransistors)
PLC stands for Programmable Logic Controller, which is a digital computer used for automation of electromechanical processes.
PLC is used to control machinery in manufacturing processes, such as assembly lines, robotic devices, or any activity that requires high reliability control.
It is programmed using a specialized computer language, typically ladder logic or function block diagram.
PLCs are commonly used in industrie...
I applied via Approached by Company and was interviewed before Feb 2021. There were 2 interview rounds.
I applied via Walk-in and was interviewed before Sep 2021. There were 3 interview rounds.
General English, Maths,Basics in Diploma.
posted on 3 Aug 2021
based on 2 reviews
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