10+ Paper boat Interview Questions and Answers

HVAC stands for Heating, Ventilation, and Air Conditioning. It refers to the technology and systems used to control indoor environmental conditions.

• HVAC is responsible for maintaining comfortable temperature, humidity, and air quality in buildings.

• It involves the installation, maintenance, and repair of heating, cooling, and ventilation systems.

• HVAC technicians work with various equipment such as furnaces, air conditioners, heat pumps, and ductwork.

• They perform tasks like tro...read more

To determine if a filter is blocked, check for reduced airflow, increased energy consumption, and visible debris on the filter.

• Check for reduced airflow coming from the HVAC system

• Monitor energy consumption to see if it has increased, indicating the system is working harder due to a blocked filter

• Inspect the filter for visible debris or dirt accumulation

Chemicals can be added to a chiller for descaling by following specific procedures to ensure safety and effectiveness.

• Determine the type and amount of chemical needed based on the chiller's size and condition

• Follow manufacturer's instructions for dilution ratios and mixing procedures

• Use appropriate personal protective equipment (PPE) when handling chemicals

• Ensure proper ventilation in the area where the chemicals are being added

• Flush the chiller system with water after adding...read more

There are three main types of maintenance: preventive, predictive, and corrective.

• Preventive maintenance involves routine inspections and tasks to prevent breakdowns.

• Predictive maintenance uses data and analytics to predict when equipment will need maintenance.

• Corrective maintenance is performed after a breakdown occurs to restore equipment to working condition.

Chiller types include air-cooled, water-cooled, and absorption chillers. AHU types include single-zone, multi-zone, and variable air volume units. Maintenance includes preventive, predictive, and reactive maintenance.

• Chiller types: air-cooled, water-cooled, absorption

• AHU types: single-zone, multi-zone, variable air volume

• Maintenance types: preventive, predictive, reactive

HMI stands for Human Machine Interface. It is a user interface that connects a person to a machine, system, or device.

• HMI allows users to interact with and control machines or systems through visual representations such as touchscreens or buttons.

• Examples of HMIs include control panels on HVAC systems, touchscreens on smartphones, and dashboard displays in cars.

CM stands for Cooling Mode. It refers to the mode in which an HVAC system operates to cool a space.

• CM stands for Cooling Mode in HVAC systems.

• During CM, the HVAC system works to remove heat from the indoor air and lower the temperature.

• Examples of CM include running the air conditioner to cool a room or building.

• CM is essential for maintaining a comfortable indoor environment during hot weather.

TPM stands for Total Productive Maintenance. It is a proactive approach to maintenance that aims to maximize equipment effectiveness.

• TPM focuses on preventing equipment breakdowns through regular maintenance and employee involvement

• It involves setting up a system of autonomous maintenance where operators are responsible for basic upkeep

• TPM also includes planned maintenance, quality maintenance, and focused improvement activities

• Example: Implementing TPM in a manufacturing pla...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.

• AHUs are commonly used in commercial and industrial buildings to maintain indoor air quality and temperature.

• They typically consist of a fan, heating and cooling coils, filters, and dampers.

• AHUs can be customized to meet specific building requirements, such as humidity control or energy efficiency.

• Manpower handling work refe...read more

I have 5 years of experience as an AC technician.

• I have worked on various types of AC systems including split, window, and central AC.

• I am skilled in diagnosing and repairing AC problems such as refrigerant leaks, compressor issues, and electrical faults.

• I have experience in installing new AC systems and performing regular maintenance to ensure optimal performance.

• I am familiar with safety protocols and regulations related to AC systems.

• I have excellent communication skills a...read more

Types of maintenance include preventive, predictive, corrective, and proactive maintenance.

• Preventive maintenance involves regular inspections and tasks to prevent breakdowns.

• Predictive maintenance uses data and analytics to predict when equipment will fail.

• Corrective maintenance is performed after a failure occurs to restore functionality.

• Proactive maintenance involves identifying and fixing issues before they cause downtime.