Hyundai Engineering Mechanical Engineer Interview Questions and Answers

Columns are vertical structures used for support while vessels are horizontal structures used for storage or transportation of fluids.

• Columns are used for structural support while vessels are used for storage or transportation of fluids.

• Columns are usually vertical while vessels are usually horizontal.

• Columns are commonly found in buildings and bridges while vessels are commonly found in chemical plants and refineries.

• ...read more

Exchanger is a device used to transfer heat from one fluid to another.

• Exchangers can be of various types such as shell and tube, plate, or spiral

• They work on the principle of heat transfer through conduction

• The hot fluid flows through the exchanger and transfers its heat to the cold fluid

• The two fluids are kept separate by a barrier to prevent mixing

• Exchangers are commonly used in HVAC systems, chemical plants, and ref

There are various types of permits required for mechanical work depending on the nature of the work.

• There are hot work permits for welding and cutting operations.

• Confined space permits for work in enclosed spaces.

• Lockout/tagout permits for maintenance work on machinery.

• Excavation permits for digging and trenching work.

• Electrical permits for electrical work.

• Permits for working at heights.

• Permits for hazardous materials ...read more

If a person is injured inside a confined space, I would follow a set of steps to ensure their safety and provide immediate medical attention if necessary.

• Assess the situation and ensure personal safety before entering the confined space.

• Call for help and inform the relevant authorities about the incident.

• Provide first aid or CPR if trained and necessary.

• If the injury is severe or life-threatening, evacuate the injured ...read more

I will follow the emergency procedures and evacuate the area immediately.

• I will stop all ongoing work and shut down any equipment that can be safely shut down.

• I will follow the emergency evacuation plan and exit the area as quickly as possible.

• I will report to the designated assembly point and wait for further instructions.

• If necessary, I will assist in the evacuation of others who may need help.

• I will not return to th...read more

Necessary documents for a permit include risk assessment, work method statement, and safety procedures.

• Risk assessment

• Work method statement

• Safety procedures

HVAC Supervisor oversees installation, maintenance, and repair of heating, ventilation, and air conditioning systems.

• Supervising HVAC technicians and contractors

• Ensuring compliance with safety regulations and company policies

• Developing maintenance schedules and overseeing repairs

• Troubleshooting HVAC systems and resolving issues

• Training staff on proper HVAC procedures

• Ordering necessary parts and equipment

• Maintaining acc

HVAC system stands for Heating, Ventilation, and Air Conditioning system, used to control the temperature, humidity, and air quality in buildings.

• HVAC system controls temperature, humidity, and air quality in buildings

• It includes components like furnaces, air conditioners, heat pumps, and ductwork

• Regular maintenance is important for efficient operation

• Examples of HVAC systems include central air conditioning units and

A heat exchanger is a device used to transfer heat between two or more fluids, typically to cool or heat a process.

• Heat exchangers can be found in HVAC systems, refrigerators, and industrial processes.

• They work by allowing heat to transfer from one fluid to another without the fluids mixing.

• Common types include shell and tube, plate, and finned tube heat exchangers.

District cooling system is a centralized system that provides chilled water for air conditioning to multiple buildings in a district.

• Centralized system for providing chilled water for air conditioning

• Serves multiple buildings in a district

• Reduces energy consumption and environmental impact

• Examples: Dubai District Cooling System, Singapore District Cooling System

Water cooled chiller is a mechanical device used to remove heat from a liquid via a vapor-compression or absorption refrigeration cycle.

• Removes heat from a liquid through a refrigeration cycle

• Used to cool water for air conditioning systems

• Helps maintain a consistent temperature in a building or industrial process

• Commonly used in large commercial buildings, hospitals, and industrial facilities

Approach temperature in a chiller is the temperature difference between the refrigerant leaving the evaporator and the water entering the condenser.

• Approach temperature is a key parameter in determining the efficiency of a chiller system.

• It is calculated by subtracting the entering water temperature of the condenser from the leaving refrigerant temperature of the evaporator.

• A lower approach temperature indicates better...read more