Urbanaac Infrastructures Mechanical Maintenance Engineer Interview Questions and Answers

Yes, ACB settings refer to the settings of Air Circuit Breakers used in electrical systems.

• ACB settings include parameters such as overload protection, short circuit protection, and ground fault protection.

• These settings can be adjusted based on the specific requirements of the electrical system.

• For example, the trip unit of an ACB can be set to trip at a certain current level to protect the system from overloads.

Power factor is a measure of how effectively electrical power is being used in a system.

• Power factor is the ratio of real power (kW) to apparent power (kVA) in an electrical system.

• It indicates how efficiently power is being converted into useful work.

• A power factor of 1 indicates all power is being used effectively, while a lower power factor means some power is being wasted.

• Power factor correction can be used to impr

I will first check the cause of the trip, reset the ACB, and then investigate further if needed.

• Check the cause of the trip - look for any overload, short circuit, or earth fault

• Reset the ACB by switching it off and then on again

• Investigate further if needed - check for any faulty components or wiring

VRF stands for Variable Refrigerant Flow and is a type of HVAC system that uses refrigerant as the cooling and heating medium. AHU stands for Air Handling Unit and is a device used to condition and circulate air as part of an HVAC system.

• VRF systems use refrigerant to directly cool or heat the space, while AHUs use chilled or heated water to condition the air before distributing it.

• VRF systems are more energy efficient...read more

I guide customers through troubleshooting steps and work with them to solve technical problems efficiently.

• Listen to the customer's issue and ask clarifying questions to understand the problem

• Provide clear instructions and guidance on troubleshooting steps

• Demonstrate patience and empathy while working with the customer

• Offer alternative solutions if initial troubleshooting steps do not resolve the issue

• Follow up with th...read more

Marketing growth can be achieved through various strategies such as digital marketing, social media campaigns, partnerships, and targeted advertising.

• Utilize digital marketing channels such as SEO, SEM, and email marketing to reach a wider audience

• Create engaging social media campaigns to increase brand awareness and attract new customers

• Form partnerships with complementary businesses to expand reach and access new mar...read more

ATS stands for Automatic Transfer Switch. It is used to transfer power supply between two sources. Transformer and motor maintenance procedures and protection methods are essential for their efficient operation. SAP is a software used for enterprise resource planning.

• ATS is used to automatically switch power supply between two sources, ensuring uninterrupted power supply.

• Transformer maintenance involves regular inspect...read more

HT motor rating is the maximum power it can handle and FLC is the current it draws at full load.

• HT motor rating is expressed in kilowatts (kW) or megawatts (MW).

• FLC of HT motor is the full load current it draws at rated voltage and frequency.

• FLC is expressed in amperes (A) and varies depending on the motor's power rating and efficiency.

• For example, a 1 MW HT motor may have a FLC of 1000 A at 11 kV.

• The rating and FLC of...read more

Plant EHT system and single line diagram of plants.

• EHT system refers to Extra High Tension system used in power plants

• Single line diagram shows the electrical connections between different components

• It is important to have a clear and accurate diagram for safety and maintenance purposes