10+ NICE Interview Questions and Answers

VCB and ACB transformers require regular maintenance to ensure optimal performance and prevent breakdowns.

• Regular inspection of the transformer and its components

• Cleaning of the transformer and its components

• Checking and tightening of connections

• Testing of protective devices

• Replacement of worn out or damaged parts

• Regular oil analysis

• Following manufacturer's recommended maintenance schedule

• Training of personnel on proper maintenance procedures

Precommissioning tests of transformers are essential to ensure their proper functioning.

• Insulation resistance test

• Turns ratio test

• Vector group test

• Winding resistance test

• Magnetizing current test

• No-load loss and excitation current test

• Load loss and impedance voltage test

Power generation involves converting mechanical energy into electrical energy using generators, which is then transmitted through power lines to reach consumers.

• Power generation involves using generators to convert mechanical energy (from sources like turbines, windmills, or water wheels) into electrical energy

• Generators produce electricity by rotating a coil of wire within a magnetic field, creating an electric current

• The generated electricity is then transmitted through pow...read more

ISO 45001 is required for safety in H2S environments.

• ISO 45001 is the international standard for occupational health and safety management systems.

• It provides a framework to improve employee safety, reduce workplace risks, and create better, safer working conditions.

• ISO 45001 certification is important for industries working in H2S environments to ensure compliance with safety regulations.

• Companies operating in oil and gas, chemical, and other industries where exposure to H2S...read more

An STP plant treats wastewater by removing contaminants and pollutants to produce clean water for discharge or reuse.

• Main functions include removing contaminants, pollutants, and solids from wastewater

• Treatment processes involve physical, chemical, and biological methods

• Equipment used includes screens, pumps, clarifiers, filters, and disinfection systems

• Maintenance involves regular inspections, cleaning, and calibration of equipment

• Safety protocols include wearing protective ...read more

Confined Space is a term used to describe an enclosed or partially enclosed space with limited access and egress. SCBA stands for Self-Contained Breathing Apparatus.

• Confined Space refers to areas that are not intended for continuous occupancy and have limited means of entry and exit.

• These spaces may include tanks, vessels, silos, sewers, tunnels, and other similar areas.

• Confined Space poses potential hazards such as poor air quality, limited visibility, and the risk of engulf...read more

Chemicals like chlorine, sulphuric acid, sodium meta bi sulphate, antisclant, and caustic soda are commonly used in R.O plants for various purposes.

• Chlorine is used for disinfection to kill bacteria and other harmful organisms in the water.

• Sulphuric acid is used for pH adjustment and cleaning of membranes.

• Sodium meta bi sulphate is used for dechlorination to remove excess chlorine from the water.

• Antisclant is used to prevent scaling and fouling of membranes.

• Caustic soda is us...read more

Pumps and aerators are used to move fluids and gases respectively.

• Pumps work by creating a pressure difference to move fluids from one place to another.

• Aerators introduce air into liquids to increase oxygen levels and promote biological processes.

• Types of pumps include centrifugal, positive displacement, and jet pumps.

• Types of aerators include surface aerators, diffused aerators, and mechanical aerators.

Layer protection refers to the use of multiple layers of security measures to protect a system or device.

• Layer protection involves implementing multiple levels of security measures to safeguard against potential threats.

• Each layer of protection adds an additional barrier for unauthorized access or attacks.

• Examples of layer protection include firewalls, encryption, access control, and intrusion detection systems.

Ring topology is a network configuration where each device is connected to exactly two other devices, forming a circular loop.

• Each device in the network is connected to exactly two other devices, creating a circular loop.

• Data travels in one direction around the ring.

• If one device fails, the entire network can be affected.

• Examples: Token Ring network, SONET ring network.

Value addition in engineering involves innovation, problem-solving, efficiency improvement, and technological advancements.

• Innovation: Engineers constantly strive to create new solutions and improve existing technologies.

• Problem-solving: Engineers analyze complex problems and develop effective solutions.

• Efficiency improvement: Engineers focus on optimizing processes and systems to increase productivity and reduce costs.

• Technological advancements: Engineers drive advancements ...read more

HVAC is used to control temperature, humidity, and air quality in buildings for comfort and safety.

• HVAC systems help maintain comfortable indoor temperatures in buildings.

• They regulate humidity levels to prevent mold and moisture issues.

• HVAC systems filter and clean the air to improve indoor air quality.

• They help control ventilation to ensure proper air circulation.

• HVAC systems are essential for maintaining a safe and healthy indoor environment.

• Examples: air conditioning unit...read more

IP rating refers to the degree of protection provided by equipment against solid objects and liquids.

• IP rating stands for Ingress Protection rating

• It consists of two digits, the first indicating protection against solids and the second against liquids

• For example, IP67 means the equipment is dust-tight and can withstand immersion in water up to 1 meter depth for 30 minutes

WWTP involves several steps to treat wastewater before releasing it back into the environment.

• Preliminary treatment to remove large objects and debris

• Primary treatment to remove solids and organic matter

• Secondary treatment to remove dissolved organic matter and nutrients

• Tertiary treatment to remove remaining contaminants

• Disinfection to kill any remaining pathogens

• Sludge treatment and disposal

• Monitoring and testing to ensure compliance with regulations

A hook drawing for DP level transmitters is a diagram that illustrates the installation and connection of the transmitter in a process system.

• The hook drawing typically includes details such as the location of the transmitter, the process connections, and the electrical connections.

• It may also include information about the type of transmitter, the range, and any additional accessories or components.

• The hook drawing helps ensure proper installation and connection of the DP lev...read more

Yes, global procurement involves sourcing goods and services from suppliers worldwide to meet organizational needs.

• Global procurement involves identifying and selecting suppliers from different countries

• It requires knowledge of international trade regulations and customs procedures

• It involves managing logistics and transportation of goods across borders

• Examples include sourcing raw materials from different countries to manufacture a product

• Another example is outsourcing servi...read more

Procurement process involves identifying needs, selecting suppliers, negotiating contracts, and managing relationships.

• Identify needs and requirements

• Research and select potential suppliers

• Negotiate terms and conditions

• Create and sign contracts

• Manage supplier relationships and performance

• Monitor and evaluate procurement process

• Ensure compliance with regulations and policies