Mumbai Port Trust Interview Questions and Answers

Star and delta connections are two common methods of connecting electrical components in a system.

• Star connection involves connecting three components in a triangular shape with a common point, while delta connection involves connecting the components in a circular shape.

• Star connection is typically used in systems where the load is balanced and the neutral point is required, while delta connection is used in systems w...read more

I approach troubleshooting electrical circuits by following a systematic process to identify and resolve the issue.

• Start by checking for obvious issues such as loose connections or blown fuses.

• Use a multimeter to test for continuity and voltage at different points in the circuit.

• Trace the circuit diagram to identify potential areas of concern.

• Isolate components to test individually for faults.

• Consult technical manuals ...read more

Personal law refers to laws that apply to individuals based on their personal circumstances, such as marriage, divorce, inheritance, and adoption.

• Personal law governs matters such as marriage, divorce, inheritance, and adoption based on personal beliefs and customs.

• It varies from one individual to another depending on their religion, culture, and traditions.

• For example, Hindu Personal Law governs matters related to Hin...read more

GST TDS refers to Tax Deducted at Source under the Goods and Services Tax system.

• GST TDS is the tax deducted at source for transactions under GST.

• It is applicable to certain specified goods and services.

• The person making the payment is required to deduct a certain percentage as TDS and deposit it with the government.

• The recipient of the payment can claim credit for this TDS while filing their GST returns.

The Governor of the Reserve Bank of India (RBI) is responsible for overseeing the central bank's functions and policies.

• The Governor is appointed by the Government of India for a term of 3 years.

• The Governor plays a crucial role in formulating and implementing monetary policy.

• The current Governor of RBI is Shaktikanta Das, who assumed office on December 12, 2018.

The biggest river in the world is the Amazon River in South America.

• The Amazon River is approximately 4,345 miles long, making it the longest river in the world.

• It has the largest drainage basin in the world, covering approximately 7,050,000 square kilometers.

• The Amazon River discharges more water than the next seven largest rivers combined.

• It is home to a diverse range of wildlife, including thousands of species of fi

The hipot test can be done on a cable multiple times depending on the specific requirements and standards.

• The number of times a hipot test can be done on a cable depends on the cable's specifications and the testing requirements.

• Generally, a hipot test is performed once during the manufacturing process to ensure the cable's insulation integrity.

• However, additional hipot tests may be conducted during the cable's lifespa...read more

If battery polarity is inverse with respect to battery charger, it can lead to damage or malfunction.

• Inverse polarity can cause short circuits or overheating.

• It can damage the battery, charger, or both.

• Reverse polarity protection circuits can prevent damage.

• Always double-check the polarity before connecting the battery to the charger.

There are several types of earthing used in electrical systems.

• The most common types of earthing are:

• - TN-S system: Separate neutral and protective earth conductors

• - TN-C system: Combined neutral and protective earth conductors

• - TN-C-S system: Combination of TN-S and TN-C systems

• - TT system: Separate earth electrode for each electrical installation

• - IT system: No direct connection between earth and neutral

• Each type of ...read more

I have handled various quality documents such as quality control plans, inspection reports, and non-conformance reports.

• Quality control plans

• Inspection reports

• Non-conformance reports

Tests done on power transformers include insulation resistance, turns ratio, winding resistance, and dielectric tests.

• Insulation resistance test checks the insulation quality of the transformer.

• Turns ratio test measures the ratio of primary to secondary turns.

• Winding resistance test determines the resistance of transformer windings.

• Dielectric tests assess the dielectric strength and insulation properties of the transfo...read more

Hipot testing is a process used to verify the insulation integrity of busbars, breakers, cables, and transformers.

• Hipot testing involves applying a high voltage to the component being tested.

• The purpose is to check for any insulation breakdown or leakage current.

• For busbars and cables, the test is typically performed between the conductor and the ground.

• For breakers and transformers, the test is performed between diffe...read more

IR, WR, and CR are abbreviations used in different contexts. IR stands for Infrared, WR stands for Weather Resistant, and CR stands for Compression Ratio.

• IR refers to Infrared, which is a type of electromagnetic radiation with longer wavelengths than visible light.

• WR is used to indicate that a product or material is designed to withstand various weather conditions.

• CR is a term commonly used in engineering and physics t...read more

Tap changer in a transformer is located on the high voltage winding side to regulate the voltage output.

• Tap changer is typically located on the high voltage winding side of a transformer.

• It is used to adjust the turns ratio and regulate the voltage output.

• If the voltage output in the secondary decreases, the tap changer will be moved to a higher tap position to increase the voltage.