Mahindra Susten Interview Questions, Process, and Tips

All three types of permits are important for ensuring safety in different activities.

• Lifting activity safety process permit is required for any activity involving lifting heavy objects to ensure proper safety measures are taken.

• Hot work hazard permit is necessary for any activity involving welding, cutting, or other activities that generate heat or sparks to prevent fire hazards.

• Excavation precaution permit is needed f...read more

A work permit is a document that authorizes a worker to perform a specific job in a controlled manner.

• Hot work hazard refers to any work that involves open flames, sparks, or high temperatures.

• Hazard impact can include fire, explosions, burns, and damage to equipment or property.

• Control measures include proper training, use of personal protective equipment, fire extinguishers, and ensuring proper ventilation.

• Examples o...read more

Trafo capacity refers to the maximum load a transformer can handle. Work description includes maintenance, testing, and troubleshooting of transformers.

• Trafo capacity is measured in kVA (kilo-volt-ampere)

• Work includes regular maintenance to ensure optimal performance

• Testing involves checking for voltage regulation and insulation resistance

• Troubleshooting involves identifying and fixing any issues with the transformer

• Ex...read more

The protection device of a power transformer is called a Buchholz relay and it detects faults in the transformer oil.

• Buchholz relay is installed in the pipeline between the transformer tank and the conservator tank

• It detects faults such as overheating, overloading, and short circuits in the transformer oil

• It works by detecting gas bubbles generated by the fault and tripping the transformer

• It also provides an alarm sign...read more

Transformer stability test is performed to ensure the reliable operation of the transformer under various operating conditions.

• Transformer stability test involves subjecting the transformer to different load conditions and monitoring its performance.

• The test is conducted to assess the ability of the transformer to withstand variations in load and maintain voltage regulation.

• During the test, the transformer is operated ...read more

The inverter make and capacity is not available.

• I don't have the available data for the inverter make and capacity.

• Unfortunately, I cannot provide any information regarding the inverter make and capacity.

• I apologize, but I don't have access to the details of the inverter make and capacity.

HT panel CT and PT testing involves various steps to ensure accurate measurements.

• Ensure the CT and PT are properly installed and connected.

• Verify the primary and secondary windings of the CT and PT.

• Perform ratio and polarity tests to confirm the accuracy of the CT and PT.

• Check for any insulation issues or faults in the CT and PT.

• Perform burden and accuracy tests to evaluate the performance of the CT and PT.

• Record and ...read more

The capacity of my transformer is 500 kVA.

• The capacity of a transformer is measured in kilovolt-amperes (kVA).

• The higher the kVA rating, the more power the transformer can handle.

• For example, a 500 kVA transformer can handle a maximum load of 500,000 volt-amperes.

• The capacity of a transformer is determined based on the anticipated power requirements of the electrical system it serves.

Plant availability formula calculates the percentage of time a plant is available for operation.

• Plant availability = (Operating hours / Total hours) * 100

• Operating hours: the total number of hours the plant is operational

• Total hours: the total number of hours in a given time period

• Example: If a plant operates for 18 hours out of 24 hours in a day, the availability would be (18/24) * 100 = 75%

Our plant has a capacity of 100,000 units per month.

• Our plant can produce up to 100,000 units per month.

• We have the capability to meet high production demands.

• Our plant's capacity allows us to fulfill customer orders efficiently.

• We have optimized our processes to maximize production output.

The nepoint voltage is the voltage at which a material transitions from being an insulator to a conductor.

• Nepoint voltage is also known as the breakdown voltage or dielectric strength.

• It is the voltage required to cause a significant increase in the conductivity of an insulating material.

• The nepoint voltage depends on the properties of the material, such as its thickness and composition.

• It is an important parameter in ...read more

PR can be calculated by dividing the number of mentions or citations of a person, product, or brand by the total number of mentions or citations in a given time period.

• PR = Number of mentions or citations / Total number of mentions or citations

• PR is often used to measure the visibility and reputation of a person, product, or brand

• For example, if a company is mentioned 100 times in the media and there are a total of 100...read more

A shaft is a rotating machine element, usually circular in cross section, which is used to transmit power.

• A shaft is a mechanical component used to transmit rotational motion or power.

• It is typically a cylindrical rod or bar that rotates within a bearing or other support structure.

• Shafts are commonly found in various machines and equipment, such as engines, motors, pumps, and turbines.

• They are often made of materials l...read more