ANI INTEGRATED SERVICES Senior Technician Interview Questions and Answers

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

HVAC stands for Heating, Ventilation, and Air Conditioning.

• HVAC is an acronym for Heating, Ventilation, and Air Conditioning.

• It refers to the technology used for indoor environmental comfort.

• HVAC systems are responsible for heating, cooling, and controlling the air quality in buildings.

• Examples of HVAC equipment include furnaces, air conditioners, heat pumps, and ventilation systems.

PAC full form is Package Air Conditioner.

• PAC is a type of air conditioning system that is self-contained and can be installed in a single package.

• It is commonly used in commercial and industrial settings.

• PAC units are designed to be compact and easy to install, making them a popular choice for retrofitting older buildings.

• Some examples of PAC units include rooftop units, wall-mounted units, and floor-mounted units.

Calibration procedures for various instruments including air flow, control valves, gate valves, dampers, and nozzle valves.

• Calibration involves comparing the readings of an instrument to a known standard.

• Air flow can be calibrated using a pitot tube or hot wire anemometer.

• Control valves can be calibrated by adjusting the position of the valve stem.

• Gate valves can be calibrated by measuring the torque required to turn t...read more

Star-delta power wiring is a method used to reduce starting current in motors, while control wiring is used to control the operation of electrical systems.

• Star-delta power wiring involves connecting a motor in a star configuration during starting to reduce current spikes, then switching to a delta configuration for normal operation.

• Control wiring includes components like switches, relays, and contactors to control the ...read more

An HVAC system is a system that provides heating, ventilation, and air conditioning to a building or space.

• HVAC stands for Heating, Ventilation, and Air Conditioning

• It helps regulate temperature, humidity, and air quality in a building

• Examples of HVAC systems include furnaces, air conditioners, and ventilation systems

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...read more

Current is the flow of electric charge in a circuit.

• Current is measured in Amperes (A)

• It is the rate of flow of electric charge through a conductor

• Direct current (DC) flows in one direction, while alternating current (AC) changes direction periodically

A circuit breaker is an electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit.

• Circuit breakers detect faults in the electrical system and interrupt the flow of electricity to prevent damage.

• They consist of a switch mechanism and a tripping mechanism that activates when a fault is detected.

• Circuit breakers can be reset manually or automatically after tripping.

• Example...read more

A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.

• Consists of two coils of wire (primary and secondary) wrapped around a core

• Primary coil receives electrical energy and creates a magnetic field

• Magnetic field induces a voltage in the secondary coil, transferring energy

• Used in power distribution, voltage regulation, and electrical isolati...read more