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I applied via Referral and was interviewed in Jan 2024. There was 1 interview round.
Circuit breakers are essential safety devices that protect electrical circuits from overloads and short circuits.
Circuit breakers automatically cut off power when there is an overload or short circuit to prevent damage to the electrical system.
They are more convenient and safer than fuses, as they can be easily reset after tripping.
There are different types of circuit breakers, such as thermal, magnetic, and combinatio...
Current is the flow of electric charge in a circuit.
Current is measured in amperes (A).
It is the rate at which electric charge flows through a conductor.
Current can be either direct current (DC) or alternating current (AC).
In a DC circuit, the current flows in one direction only.
In an AC circuit, the current changes direction periodically.
Current is caused by the movement of electrons or other charged particles.
It is e...
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 in an electrical circuit.
They consist of two or more coils of wire, known as windings, that are wound around a core made of magnetic material.
The primary winding is connected to the power source, while the secondary winding is con...
A capacitor is an electronic component that stores and releases electrical energy.
A capacitor consists of two conductive plates separated by an insulating material called a dielectric.
When a voltage is applied across the plates, one plate accumulates positive charge while the other accumulates negative charge.
Capacitors are commonly used in electronic circuits for energy storage, filtering, timing, and coupling.
They ca...
A fuse is a safety device that protects electrical circuits from excessive current flow.
A fuse is a small, thin wire or strip of metal that melts when excessive current flows through it.
When a fuse melts, it breaks the circuit and prevents further flow of current, protecting the electrical equipment.
Fuses are commonly used in electrical systems to prevent damage from short circuits or overloads.
They are rated for speci...
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I applied via Naukri.com and was interviewed in Nov 2019. There was 1 interview round.
I applied via Walk-in and was interviewed in Jan 2023. There were 2 interview rounds.
Transformers are electrical devices that transfer electrical energy between two or more circuits through electromagnetic induction.
Transformers are used to step up or step down voltage levels in electrical power transmission and distribution systems.
They consist of two or more coils of wire, known as windings, which are wound around a core made of magnetic material.
The primary winding is connected to the power source, ...
A fire alarm system is a network of devices that detect and alert people to the presence of fire or smoke.
Fire alarm systems can include smoke detectors, heat detectors, and manual pull stations.
When a device detects smoke or heat, it sends a signal to a control panel, which activates alarms and alerts authorities.
Fire alarm systems are essential for protecting people and property from the dangers of fire.
Examples of p...
I applied via Walk-in and was interviewed in Sep 2023. There was 1 interview round.
I applied via Walk-in and was interviewed in May 2022. There were 2 interview rounds.
I applied via Naukri.com and was interviewed in Apr 2023. There were 2 interview rounds.
Physical security refers to measures taken to protect physical assets, resources, and personnel from unauthorized access, damage, or harm.
Includes physical barriers such as fences, locks, and security cameras
Involves access control systems like key cards or biometric scanners
May also include security guards or patrols to monitor and protect a physical space
Examples: installing security cameras in a retail store, using
Physical security barriers include fences, locks, access control systems, and surveillance cameras.
Fences can prevent unauthorized access to a property.
Locks on doors and windows can deter intruders.
Access control systems limit who can enter specific areas.
Surveillance cameras can monitor and record activities for security purposes.
There are various types of cameras including DSLR, mirrorless, point-and-shoot, action, and instant cameras.
DSLR cameras have interchangeable lenses and are popular among professional photographers.
Mirrorless cameras are compact and lightweight, with electronic viewfinders.
Point-and-shoot cameras are small and easy to use for everyday photography.
Action cameras are rugged and designed for capturing fast-paced activitie...
A PTZ camera is a type of security camera that can pan, tilt, and zoom to provide a wider range of coverage and flexibility in monitoring.
PTZ stands for pan, tilt, zoom
Can be controlled remotely to adjust viewing angle and zoom level
Used in surveillance systems for monitoring large areas
Examples: Hikvision PTZ camera, Axis PTZ camera
A dome camera is a type of surveillance camera that is housed in a dome-shaped casing, providing a discreet and vandal-resistant design.
Dome cameras are commonly used for indoor and outdoor security surveillance.
They are often used in retail stores, banks, casinos, and homes.
Dome cameras can be fixed or PTZ (pan-tilt-zoom) for flexible monitoring.
The dome casing helps to protect the camera from tampering and vandalism.
I applied via Approached by Company and was interviewed in May 2023. There were 5 interview rounds.
I applied via Naukri.com and was interviewed before Jun 2023. There was 1 interview round.
Resistance values are often color coded on resistors to easily identify their resistance value.
Color coding is used on resistors to indicate their resistance value
The colors represent numbers according to a specific color code chart
The first two bands represent the first two digits of the resistance value, the third band represents the multiplier, and the fourth band represents the tolerance
For example, a resistor with...
The symbol of a diode is an arrow pointing towards a line, representing the flow of current in one direction only.
Arrow pointing towards a line
Flow of current in one direction only
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Compass Group Support Services
Aramark
CBRE
Cushman & Wakefield