Yeoman Marine Services Interview Questions and Answers

Q1. JOB & SHIPPING KNOWLEDGE .
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Q2. JOB & SHIPPING KNOWLEDGE
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Q1. SALARY NEGOTIATION AND GENERAL QUESTION
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Q2. SALARY NEGOTIATION AND OFFER LETTER
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Q1. Tell me about yourself
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Q1. What were key skills in your last company.
Ans. There my key skills finalization and reporting to reviewers.
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Q1. How many times hipot test can be done on a cable?
Ans. 
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
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Q2. What if battery polarity is inverse with respect to battery charger?
Ans. 
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.
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Q3. How many types of earthing are there?
Ans. 
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
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Q4. What type of quality documents you have handled?
Ans. 
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
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Q5. What are the tests performed on PT?
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Q6. What are the tests done on power transformer?
Ans. 
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
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Q7. What is the process of hipot in busbar, breakers, cables and trafo?
Ans. 
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
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Q8. What is the difference between IR, WR and CR?
Ans. 
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
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Q9. Where is tap changer in a transfermer located and why?If the voltage output in secondary decreases what will be location of tap changer?
Ans. 
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.
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General Ouestion and aptitude

Q1. Auxiliaries and boiler
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Q1. Boyle law Keepler laws Newton laws
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