Leadec India Team Leader Maintenance Interview Questions and Answers

AHU stands for Air Handling Unit.

• AHU is a device used to regulate and circulate air as part of a heating, ventilation, and air conditioning (HVAC) system.

• It typically consists of a blower, heating or cooling elements, filters, dampers, and sound attenuators.

• AHUs are commonly found in commercial and industrial buildings to maintain indoor air quality and comfort.

• Examples of AHU manufacturers include Trane, Carrier, and

Air Handling Unit

• AHU stands for Air Handling Unit

• AHUs are used to regulate and circulate air as part of HVAC systems

• They typically consist of a blower, heating or cooling elements, filters, and dampers

• AHUs are commonly found in commercial and industrial buildings

UPS stands for Uninterruptible Power Supply. It is an electrical device that provides emergency power to a load when the input power source fails.

• UPS works by converting DC power from a battery to AC power that can be used by the load.

• It provides immediate power backup during power outages, preventing data loss and equipment damage.

• UPS can also regulate voltage and frequency, protecting the load from power surges and s...read more

AHU stands for Air Handling Unit. It is a device used to regulate and circulate air as part of a heating, ventilating, and air-conditioning (HVAC) system.

• AHU is responsible for filtering, heating, cooling, humidifying, and dehumidifying the air.

• It consists of a blower, heating and cooling elements, filters, and dampers.

• The blower pulls in air from the outside and passes it through the filters to remove impurities.

• The a...read more

AC stands for Alternating Current. There are two types of AC - Single Phase and Three Phase.

• AC is a type of electrical current that periodically reverses direction.

• Single Phase AC is commonly used in households and small businesses.

• Three Phase AC is used in industrial and commercial settings.

• AC power is generated by power plants and transmitted through power lines.

• AC voltage and frequency vary depending on the country ...read more

BMS Work CCTV operation involves monitoring and controlling CCTV systems through a Building Management System.

• BMS Work CCTV operation is a part of building automation systems that allows for remote monitoring and control of CCTV systems.

• It involves integrating CCTV systems with the BMS to enable real-time monitoring and control of cameras, recording devices, and other related equipment.

• BMS Work CCTV operation can be us...read more

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 voltage levels in electrical circuits.

• They consist of two coils of wire, known as the primary and secondary coils.

• The primary coil is connected to a power source, while the secondary coil is connected to the load.

• The changing magnetic field i...read more

ACB stands for Air Circuit Breaker, which is a type of circuit breaker that operates in the air as an arc extinguishing medium.

• ACB is used to protect electrical circuits from overloads and short circuits by automatically disconnecting the power supply when a fault is detected.

• It consists of a set of contacts that open and close to interrupt the flow of current in the circuit.

• ACBs are commonly used in industrial and com...read more

DG Safety device is a safety device used to protect diesel generators from damage or malfunction.

• DG Safety device monitors parameters like temperature, oil pressure, and voltage to ensure safe operation.

• It can automatically shut down the generator in case of any abnormal readings to prevent damage.

• Examples of DG Safety devices include automatic voltage regulators, engine control modules, and temperature sensors.

Transformer safety refers to measures taken to prevent accidents and ensure the proper functioning of transformers.

• Regular maintenance checks to identify any potential issues

• Proper grounding to prevent electrical shocks

• Using protective equipment when working with transformers

• Following safety guidelines and protocols

• Installing safety devices such as pressure relief valves

• Training employees on safe handling and operation