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Power Factor Explained – The basics what is power factor pf – The Engineering Mindset

What is Power Factor? What is Leading & Lagging Power factor ? Power Factor Correction Methods

Excellent youtube video which cuts open a TEV and explains working principle with animation

Definition of “boiler caustic embrittlement”:
Phenomenon that takes place in boiler when caustic substances gather in materials of the boiler, especially highly stressed regions such as cracks, tube and tube plate connection, joints, bends, and rivets.

Definition of “caustic”: Strong corrosive alkaline

Chemical formula:

NA2CO3 = Sodium…[Read more]

Definition:
To test boiler steam pressure does not exceed 10% above WP. In other words, to test that the boiler safety valves are appropriate for the boiler, does it release steam fast enough to prevent steam pressure exceeding 10% above WP.
*Boiler safety valves are set at 3% above WP.

So how come it’s possible for boiler steam pressure to…[Read more]

Meggar test to insulation test

WHAT IS “Good” insulation?
Every electric wire in your plant – whether it’s in a motor, generator, cable, switch, transformer, etc. – is carefully covered with some form of electrical insulation. The wire itself is usually copper or aluminum, which is known to be a good conductor of the electric current that powe…[Read more]

Resume Adjectives: 115 Self-Descriptive Words For Your Resume

Key Skills to Put on a Resume & List of Skills Examples

Resume example

Given below is a medium speed trunk type main engine oil analysis report. With reference to each parameter of this report:
• Is there sufficient additive reserve in circulation oil to protect the engine?
• Analyze the condition of this oil from used oil test results for each parameter by comparing with SAE 30 New oil.
• Discuss the effect of conti…[Read more]

INTERNATIONAL CODE ON THE ENHANCED PROGRAMME OF INSPECTIONS DURING SURVEYS OF BULK CARRIERS AND OIL TANKERS, 2011 (2011 ESP CODE)

Lloyd’s Register ESP for Bulk Carriers Preparation for Special Survey

For the purpose of this post, we’ll focus on double skin bulk carriers:

Definitions:
1. Overall survey: Intended to report on overall condition…[Read more]

Rudder area is usually between 1/60th to 1/70th of the vessel’s Length X Draught.
Ratio of Depth to Width (aspect ratio) is 2:1.

3 TYPES OF RUDDER:

Unbalanced rudder: Whole rudder area aft of stock

Components:
– Sole piece is a forging to form lower gudgeon supporting bearing pintle, and connect to aftermost keel plate
– Sternpost is formed…[Read more]

1. internal surface to be clean and no tools and rags left inside
2. All openings of mountings cleaned properly
3. Mountings to be fixed back with new gaskets 
4. Manhole, hand hole , furnace are closed
5. Ensure vent, alarms and pressure gauge connection valves are open
6. Ensure all drain valves are shut
7. Switch on power on boiler panel and put all…

[Read more]

Planning 

1. 1. 1. 1. 1. Planning to be done and discuss with technical super.
            2. Risk assessment to be done
            3. Permit to work obtain
            4. Check for necessary tools and spares
            5. Check manual for special instruction and check past records
            6. Next port steam consumption obtain
            7. Personal involve to be briefed

Shutting down for survey

…

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1. List some of the different class notations and their significance. Give an example combining at least five different class notations (Hull) and explain the meaning. (Use Lloyd’s Register of Shipping notations)
A ship’s class is denoted by hull & machinery ‘class notations’. Classification societies may use different systems of notatio…[Read more]

What are the parts of the ship that is examined by a surveyor during an annual surveyor?
Annual surveys are to be held concurrently with statutory annual or other relevant statutory surveys, whenever practicable. At the survey the surveyor is to examine the followings:
a) The condition of all closing appliances covered by the conditions of…[Read more]

1. Who are the assigning authorities for assignments of freeboards and issue Load line Certificate in Singapore?
In Singapore, MPA or MPA approved 9 classification societies are the assigning authorities for freeboard under the authority of MPA. Approved 8 classification societies are as follows- America Bureau of Shipping (ABS). Lloyds Register…[Read more]

1) Describe the aid of a sketch a typical watertight door.

Water tight doors
There are three classes of water tight doors.
A) Hinged door
B) Hand operated sliding door.
C) Sliding doors that are powered operated and hand operated.
Features of water tight door
1) water tight doors are fitted on access openings on bulkheads.…[Read more]

1) What is the purpose of subdivision of ships.
– The purpose of subdivision is “To provide the ship into water tight compartments, therefore reducing the risk of sinking, when damaged.”
– Effectiveness depends upon the bulkhead height and spacing.
– It can also prevent the spread of fire to certain extent.

2) List the function of…[Read more]