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I applied via Company Website and was interviewed before Sep 2019. There were 4 interview rounds.
A transformer is an electrical device that transfers electrical energy between two or more circuits 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, called the primary and secondary, wrapped around a magnetic core.
When an AC current flows through the primary coil, it creates a magnetic field that in...
Earthing is the process of connecting electrical equipment to the earth to prevent electric shock.
There are several types of earthing, including plate earthing, rod earthing, pipe earthing, and strip earthing.
Plate earthing involves burying a copper plate in the earth and connecting it to the electrical equipment.
Rod earthing involves driving a copper rod into the earth and connecting it to the electrical equipment.
Pip...
Circuit breakers are of different types such as thermal, magnetic, hydraulic-magnetic, and residual current devices.
Thermal circuit breakers use a bimetallic strip to trip the breaker when it gets too hot.
Magnetic circuit breakers use an electromagnet to trip the breaker when it detects an overload.
Hydraulic-magnetic circuit breakers combine the features of both thermal and magnetic circuit breakers.
Residual current de...
Star delta starter is an electrical motor starting mechanism that reduces the starting current and torque.
Used for starting high power motors
Consists of three contactors and a timer
Initially starts the motor in star configuration and then switches to delta configuration
Reduces starting current and torque
Commonly used in industrial applications
Buchholz relay is a protective device used in oil-filled transformers to detect and prevent faults.
It is a type of gas actuated relay
It is installed in the oil-filled transformer tank
It detects the presence of gas or air bubbles in the oil
It trips the transformer if a fault is detected
It helps to prevent major damage to the transformer
posted on 20 Dec 2020
posted on 29 Jan 2021
I applied via Naukri.com and was interviewed before Nov 2020. There was 1 interview round.
I applied via Walk-in and was interviewed before Aug 2019. There was 1 interview round.
Fe500 is a type of high-strength reinforcement steel used in construction.
Fe500 stands for 'Fe' meaning iron and '500' representing the minimum yield strength of the steel in megapascals (MPa).
It is commonly used in construction for its high strength and durability.
Fe500 steel bars are used in reinforced concrete structures such as buildings, bridges, and highways.
It is also known as TMT (Thermo-Mechanically Treated) s...
I appeared for an interview in Aug 2019.
There are various types of structures, including buildings, bridges, dams, tunnels, and towers.
Structures can be classified based on their purpose, design, and materials used.
Buildings can be further classified into residential, commercial, and industrial structures.
Bridges can be classified into beam, arch, suspension, and cable-stayed bridges.
Dams can be classified into gravity, arch, buttress, and embankment dams.
Tu...
Density is the measure of mass per unit volume of a substance.
It is a physical property of matter.
It is calculated by dividing the mass of a substance by its volume.
Units of density include kg/m³, g/cm³, and lb/ft³.
Density can be used to identify substances and determine their purity.
For example, gold has a density of 19.3 g/cm³, while aluminum has a density of 2.7 g/cm³.
There are two types of density construction: compacted and loose.
Compacted density construction involves compressing the material to increase its density, such as in road construction.
Loose density construction involves leaving the material in its natural state, such as in landscaping.
The type of density construction used depends on the intended use of the material and the desired level of compaction.
Other factors that...
Tests for construction joints include visual inspection, water tightness test, and load transfer test.
Visual inspection to check for proper joint alignment and sealant application
Water tightness test to ensure no water leakage through the joint
Load transfer test to verify the joint can handle the intended load
Other tests may include pull-out test, shear test, and compression test
Testing frequency and methods may vary d...
I applied via Naukri.com and was interviewed before Jan 2020. There were 4 interview rounds.
I applied via Recruitment Consultant and was interviewed before Oct 2019. There were 3 interview rounds.
To draw SFD and BMD for simply supported beam under UDL of 10KM/m, follow these steps:
Calculate the reactions at the supports
Draw the SFD by taking the upward forces as positive and starting from one end
Draw the BMD by taking the positive moment as clockwise and starting from one end
Mark the maximum values of SFD and BMD
Check the equilibrium and compatibility of the beam
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