Knowledge material

IMO was formed to accept regulation & Governments are accountable for applying them. When a Government accepts an IMO Convention it agrees to make it part of its national law and to enforce all of the...

Q. With regards to ordering and receiving fuel bunkers on boards, answer the following: A. The importance of the correct bunker specifications, including relevant ISO standard. B. How will you ensure that a representative sample is...

Q. Explain the different machinery linked emergency situations that are dealt as documented process under “emergency preparedness”. Underline the salient actions that are documented in dealing with a. Main engine failure b. Steering gear failure c. Electrical...

(a) Explain about BJT (Bipolar Junction Transistor),Uni-junction transistor. (b) Describe about NPN and PNP transistor with sketch. (c) Describe about Thyristor,GTO(gate turn off thyristor) (d) Describe about MOSFET operation, Snubber circuit. (a) BJT (Bipolar Junction Transistor) Three terminal device,...

The International Convention for the Safety of Life at Sea, 1974 (SOLAS), as modified, deals with various angle of maritime safety & contains in chapter VII the obligatory provisions governing the carriage of dangerous...

Q. a. Discuss G-8 Vs G-9 standards for ballast water treatment system. b. You are required to have an existing ship retrofitted with a BWT system. Briefly describe the technical challenges you anticipate & the...

Boiler Casing:- Mild steel plates (low carbon) C, Si, Mn, (Hot finished rolled plates) Steam Drum:- Mild steel plates (low carbon) TS-430-490MN/m2 C, Si, Mn (Hot finished) Fire Row & Gen. Row Tubes:- Cold drawn seamless (low carbon steel) C, Si,...

Principles for connecting the dehumidifier and recommended system The dehumidifiers must be connected to the engine by means of flexible hoses. It is recommended to use steel wire reinforced plastic hoses. Same type as normally used for ventilation systems....

Star Delta Starter This is means of reducing starting current of induction motor by initially connecting to the stator winding to ‘STAR’. Once the motor comes up to speed (68%) to be connected in DELTA. When motor start in ‘STAR’ it has the effect of: Reducing...

1.Failure to build up pressure Causes: Loss of suction / air ingressDischarge valve stuck in closed positionMotor inoperationalInternal damage due to wear & tear Remedial Actions: Identify cause & rectify same 2. Vibration Causes: It is because of bearing damageMisalignment to couplingDamage to...