MEO Class 4 Exam : Function 5(Electrical) – Recent Questions asked in MMD’s

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 Function 5 – EECEOL Most frequently asked questions in MMD’s

Function 5: EECEOL(Electrical, Electronics, and Control Engineering at Operational Level)  generally called “Electrical” is one of the oral functions in class 4 exams. The surveyors are mostly focusing on,
  1. Safety aspects of the equipment such as Motor, Generator, Crane, MSBD, ESBD, etc. 
  2. Basic working principles of the equipment such as Alternator, Avr, motors, starters, etc.
  3. Regulations for Emergency Power supply.
  4. Maintenance of the equipment.
  5. The power distribution system of the ship that includes MSBD, ESBD, Emergency Generator, Batteries, etc.

So, in this article, we have collected the most frequently asked questions in MMD’s.

  1. Emergency battery checks?
  2. Soft starter and its application?
  3. What are the tests to carry out on the motor
  4. How to check continuity?
  5. Different types of starters on board? What maintenance you carried out on starter?
  6. What are the things you’ll find on the starter panel?
  7. How will you carry out batteries maintenance?
  8. What’s the specific gravity of charged and discharged battery?
  9. Safeties on the motor?
  10. How will you take a generator on load and methods?                                                                
  11. ICCP working in the circuit?
  12. Explain Shaft Earthing?
  13. Star delta starter components?
  14. Explain Insulated Earthing?
  15. Clamp meter working and principle?
  16. Explain AVR (Automatic Voltage Regulator) with a diagram?
  17. What is Excitation and how it works?
  18. SOLAS regulation for Emergency power onboard cargo and passenger ships?
  19. Where will we use current transformers and voltage transformers? 
  20. Types of fuses and how to rate fuse?
  21. Types of starters explain with diagram?
  22. Alternator working?
  23. Emergency switchboard safeties?
  24. Emergency generator testing?
  25. Battery. On your ship?                   
  26. Hazards zones on the tanker. (For intrinsical safety)           
  27. Starters onboard where it is? Star delta and dol.                    
  28. Synchronous scope and parallel? MSB and ESB connection? Preferential trip?                   
  29. Supply for gas detectors?                                          
  30. Megger?
  31. Shaft earthing device?
  32. Induction Motor?
  33. Types of power onboard?
  34. MSB safeties
  35. Battery room safeties?
  36. Motor overhaul after flooding?
  37. The preferential trip, paralleling, Megger, IR test
  38. Electric fire
  39. Diode
  40. Bridge rectifier
  41. Types of power onboard…
  42. Application of DC power onboard
  43. Power factor values
  44. Insulation resistance check
  45. Difference between terminal voltage & emf?
  46. Electrical protection arrangement on Deck
  47. At what volt should a battery be charged?
  48. MSB safeties.
  49. Emergency Generator regulations?
  50. The motor in engine room caught fire, so what are protections are there to prevent it?
  51. Onboard Electrical instruments present. And how do they work?
  52. Motor present on Weather deck, what are the protections for it
  53. You have to purchase battery what are the conditions for it
  54. Megger testing
  55. Power factor?  How to improve?
  56. Brushless exciter 
  57. Capacitor
  58. Rectifier
  59. Crane safeties
  60. Starter
  61. Autotransformer and soft starter were it is used?
  62. How a reverse power trip occurs?
  63. How to find an earth fault?
  64. How to do insulation testing?
  65. How do you use the megger to find the insulation resistance?
  66. How to check fuses?
  67. What are megger and its Unit??
  68. Different voltages on the ship??
  69. What is the value of voltage for the boiler ignition plug? And how it is achieved?
  70. Methods of synchronization?
  71. Battery Maintenance?
  72. Types of wiring?
  73. Types of fuses?
  74. UMS alarms in detail?
  75. Shore connection and Earthing? Consequences of no Earthing.
  76. Different methods of Paralleling of generators?
  77. Motor in governor
  78. Battery room and number of batteries
  79. What is the value of voltage after rectification?
  80. What is the voltage after rectification
  81. Fire in electrical
  82. If an earth fault occurs in 440V, how will you find the location of the fault?
  83. What is AVR?
  84. How to start an emergency generator?
  85. What is rectification?
  86. How much is the voltage after rectification?
  87. Where is 24 v dc used onboard?
  88. Generator paralleling procedure?
  89. Draw the connection between MSB and ESB (looking for interlock)?
  90. What are the supplies from ESB?
  91. Battery Topping up procedure?
  92. While working on a generator what is the electrical interlock provided to prevent the starting of the generator?
  93. What do you mean by an exciter voltage?
  94.  What is insulation?
  95. Insulation testing?
  96. Continuity testing?
  97. Explain paralleling of gen
  98. Why need to close at 11o clock not in one o clock
  99. Why the scope to turn clockwise not in anticlockwise and explain
  100. Explain gas cutting
  101. Where will you store the gas cutting cylinders and safety
  102. List MSB safety
  103. Explain explosion-proof and intrinsically safe
  104. Type of electrical equipment used in tanker
  105. Explain MGPS.
  106. Explain MSB safety
  107. How to test the reverse power trip.
  108. GS motor immersed in seawater, what action will you take.
  109.  Alternator gap, how much and purpose?
  110. Trickle Charge
  111.  MGPS. Def, where, and why used?
  112. ICCP. Def, where, and why? Voltage?
  113. Earth fault detection how? where do u find earth fault indication?
  114. For single-phase induction motor why capacitor is used? (asked me while pointing towards the running fan!)
  115.  Over-current relay. Where fitted? How it works?
  116. Explain ICCP
  117. Single phasing
  118. Intrinsic devices
  119. What is an earth fault?
  120. What is the alarm setting for earth fault?
  121. Unit of insulation?
  122. What are the brushes?
  123. What is brushless excitation?
  124. How tube light working..and diagram
  125. What are the fuse and its material?
  126. What is a clamp meter
  127. Generator parallel procedures
  128. MSB safeties
  129. What is a dead front panel
  130. How do the trips work
  131. What is Zener diode
  132. AVR
  133. Thyristor, SCR
  134. The sequence in preferential trip
  135. Emergency generator regulation
  136. Alternator specifications
  137. Different voltages to be used onboard (requirements)
  138. Relation relating frequency poles &speed
  139. Where were the battery rooms
  140. How many batteries were there
  141. How do u get single-phase from 3 phase
  142. Insulation test on motor & continuity test
  143. Open circuit and short circuit?
  144. Explain and checks in lead-acid battery/
  145. Explain clapometer.
  146. Why the earth line is provided
  147. What is an earth fault lamp, where it is placed in MSB
  148. What to do when earth fault alarms?
  149. What are the checks to be followed in an electrical point of view while departing from drydock
  150. What is the range of AIS?? VHF range?
  151. What is a rectifier?
  152. Where all it is used.
  153. What are all the 24V dc supplies onboard
  154. Name 7 items supplied with emergency power.
  155. What is the maximum value of current that can be converted to DC. Can it be used for
  156. High voltage applications
  157. What are all meters used in ship and where?
  158. How will you parallel the generator if the micrometer fails?
  159. ICCP
  160. Synchronous motor Application onboard 
  161. How supply cables passed for crane from bottom to top
  162. Explain about synchronous motor.
  163. Difference between synchronous motor and induction motor
  164. Onboard where we are using synchronous motor and why
  165. Battery maintenance
  166. What are the different type of starters?
  167. What is the Star- Delta starter? where it is used? how it works?
  168. Ship electrical supply distribution system draw
  169. Paralleling procedure.
  170. What are the methods of synchronization?
  171. Why the air gap? what happens if the gap is reduced? how reduced? how to measure?
  172. Battery maintenance
  173. Induction motor principal.
  174. Function of SCR
  175. MSB safeties.
  176. MSB maintenance
  177. As a 4th engineer, how will you do maintenance on the battery?
  178. What are the meters we find in MSB?
  179. Battery maintenance, what is a rectifier
  180. How will you measure current? Clamp meter principle
  181. Induction motor, Synchronous motor Difference
  182. Insulated & Earthed neutral System
  183. Battery maintenance
  184. Clamp meter and its working principle
  185. Paralleling of generator
  186. Battery maintenance
  187. Where all we use batteries onboard
  188. How  will you take the megger test
  189. What is the function of SCR
  190. What are the types of switchboards
  191. Motor overhauling(step by step procedure for complete overhauling)
  192. What are all the measuring instruments used for an equipment
  193. What is a rectifier?
  194. Where all it is used.
  195. Where are all the 24V dc supplies onboard
  196.  Name 7 items supplied with emergency power.
  197. What is the maximum value of current that can be Converted to DC? Can it be used for high voltage applications
  198. Diode
  199. Types of circuit breakers
  200. Safeties in MSB?
  201. Types of switchboard?
  202. What is the rectifier?
  203. Where will you see a rectifier on the ship?


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