Meo Class 4 Electrical Oral Questions and Answers

  Here I have tried my level best to list almost all possible questions from Marine Electro Technology. As it is impossible to answer all questions at a time I am doing it on timely basis. If you find that I have missed out any questions, please hint me by commenting below or mail at admin@marinesite.info. Repeatedly asked questions marked as V.imp and Imp so please do give special attention for those questions

  If interested in answering unanswered questions please do mail us admin@marinesite.info. Your small contribution can make a big change in someone’s life

Basics

> Basic Terms In Marine Electricity

> Basic Laws In Marine Electricity

> Difference Between A/C & D/C? Why AC is Preferred onboard ship

> Active Power, Apparent Power, Reactive Power(Imp)

> Power factor and its significant (Imp)

Layouts & Components

> Electrical Power Distribution System Onboard Ship

> Insulated & Earthed Neutral System

> Open circuit, Short circuit And Earth faults  (imp)

> What is Fuses, Use, Types, Functions

> What is circuit breaker and its functions

> Difference Between circuit breaker and fuse? (Imp)

> Shore Supply or Cold Ironing or Alternate Power (AMP) (imp)

> High voltage system on ship, Safeties, Advantage, Disadvantage (imp)

Generators (Alternators)

> Generator Basic Principle & Components

> How Breshless Alternotor Works with circuit diagram(Imp)

> Parallel Operation Procedure for Marine Diesel Generators (Imp)

> Synchroscope Working & Construction

> Reverse Power Flow, Motoring Effect And Reverse Power Relay(Imp)

> What Planned maintenance is done on a generator?

> Procedure for Alternator Overhaul

> Why is it necessary that the Incoming Generator Frequency is More than the Busbar?

> Why does we prefer to close the switch at 11'o clock and not at 12'o clock

> What is Tie breaker? How emergency generator and main generator connected (Imp)

> Explain Governor Droop Why it is required

Transformers

> What is Transformer? Principle Types

> What are the losses in Transformer

Motor

> Motor Principle and Types

> A/C Motors Principle Working & Types

> Difference Between A/C & D/C Motors? (Imp)

> Difference between Synchronous & Asynchronous Motor? (Imp)

> What is single Phasing? Causes, Effect And Protection(Imp)

> Why Motor rating in KW and Transformers are given in KVA (Imp)

Starters
> What is Starter? Why do we Need Starter? (Imp)

> Draw and explain Direct Online Starter

> Draw and explain Star Delta Starter (Imp)
> Draw and explain Auto Transformer Starter

> Explain Soft Starters

> Maintenance on starters

 

Battery
> Basics Of batteries that You should Know

> Lead Acid Batteries Working & Construction

> Battery Charging, Trickle Charging (Imp)

> Inspection And Maintenance Of Battery Room (Imp)

> Safety Arrangements in Battery Room (Imp)

Safeties

> Safety precaution During any electrical Work (Imp)

> Preferential Trip With a simple diagram, Location and sequence of tripping(Imp)

> Ship Earth Fault Indicators Working With simple Diagram

> Safeties on MSB and ESB (Imp) 

> Steering gear Motor Safeties  (Imp)

> Type of Explosion protection For electrical equipment (Intrinsic)

> Safeties on crane

Troubleshooting 
> What are the Reasons For Generator Voltage Fluctuation?

Miscellaneous 

> Insulation resistance check or Megger test Procedure with circuit diagram (Imp)