GMT
  • LOGIN
    Sign in with Facebook
  • |
  • SIGNUP
Our Community
Latest Jobs
Latest Videos
Our Blog
Forum
Latest Events
CLOSE
Latest Members
  • AGUNG SAKTI YUDHISTIRA
  • Abdul Majeed Pazhedath
  • ian paul
  • David Hurley
  • BENJAMIN QUAYSSY BEDZRAH
  • Tagore Pedada
  • Integrity Ships Pvt Ltd
  • Amitava
  • Panagiotis Demeroukas
  • Praful Nagare Nagare
Show All

Maritime Forum

Topics in Category: Marine engineering practice

emo
Views: 599
Replies: 1
Topic List
PMA-3777's Avatar
Topic started 05 Apr 2017 11:26 by PMA-3777
(a) Diagram and working of screw down non return valve and screw down lift valve? (b) Quick closing valve diagram and working?
anandgardener's Avatar
Last Post by anandgardener 08 Jun 2017 02:32
(a) [image] As been depicted in the diagram when the flow comes below the valve lid, the fluid will lift the lid and pass but when the flow is in reverse direction the lid will sit on the seat and stop the flow. On the...
emo
Views: 193
Replies: 1
Topic List
PMA-3777's Avatar
Topic started 28 Mar 2017 05:11 by PMA-3777
With reference to electro hydraulic gear: (a) Why pump is constant speed variable stroke. (b) Describe two ways where by air enters in such system. (c) Describe effect of air in system. (d) Explain the system of telemotor receiver.
anandgardener's Avatar
Last Post by anandgardener 08 Jun 2017 01:09
1) As the steering gear is given different helm angle to turn the steering gear hydraulic system will require variable amount of the hydraulic fluid to turn the Rudder into the desired helm angle. The variable displacement pump can very easily cope up this continuous change in demand. Thus it is...
emo
Views: 246
Replies: 1
Topic List
PMA-3777's Avatar
Topic started 28 Mar 2017 05:08 by PMA-3777
With reference to refrigeration system: (a) Rapidly drop crankcase oil in vee block compressor. (b) Steady fall off effect on short running. (c) Excess icing up at compressor suction. (d) Short cycling.
anandgardener's Avatar
Last Post by anandgardener 06 Apr 2017 08:39
(A) Drop in suction pressure will lead to excessive carryover of crankcase oil or there could be leakage from the crankcase shaft seal. (C) Causes of the excess icing in the Compressor suction are following: 1. Over charging of refrigerant. 2. Faulty Thermostatic expansion valve. 3. Blocked...
emo
Views: 272
Replies: 1
Topic List
PMA-3777's Avatar
Topic started 28 Mar 2017 04:47 by PMA-3777
With reference to oil coolers: (a) How and why turbulent flow is provided in heat ex changers. (b) If we eliminate the sacrificial anode how we compensate them. (c) What is guided flow in heaters. (d) Allowance given for tube expansion.
anandgardener's Avatar
Last Post by anandgardener 06 Apr 2017 08:15
(a) Why turbulent flow: A common situation encountered by an engineer is heat transfer to fluid flowing through a tube. This can occur in heat exchangers, boilers, condensers, evaporators, and a host of other process equipment. The study of heat transfer can be done either in laminar flow or in...
emo
Views: 246
Replies: 1
Topic List
PMA-3777's Avatar
Topic started 28 Mar 2017 04:43 by PMA-3777
(a) Sketch a boiler feed water line diagram with all components showing. (b) What is the significance of PH value in boiler feed water. (c) What is electro chemical corrosion.
anandgardener's Avatar
Last Post by anandgardener 06 Apr 2017 07:23
(a) [image] (b) When we measure pH, we’re measuring the power of Hydrogen. The number refers to the relative concentration of hydrogen (acid) and hydroxide (base) ions in solution. It comes into play with steam boilers because a pH between 7...
emo
Views: 130
Replies: 0
Topic List
PMA-3777's Avatar
Topic started 05 Apr 2017 11:28 by PMA-3777
(a) According to steering gear 1) Block or unloading device 2).Shock buffer relief valve 3).Stops or cut outs 4).Rudder stop (b) Routine testing of steering gear
emo
Views: 557
Replies: 1
Topic List
anandgardener's Avatar
Topic started 21 Jul 2016 15:06 by anandgardener
In removing a propeller in dry dock how it is ascertained that the nut is tighten back to its original position on reassembly and how it is locked? :unsure:
anandgardener's Avatar
Last Post by anandgardener 22 Jul 2016 03:23
The System used for Mounting and Dismounting the Propeller is called the Pilgrim Nut System. The pilgrim nut is a threaded hydraulic jack, which is screwed on to the tail shaft. A steel ring receives thrust from a hydraulically pressurized nitrile rubber tyre inside it. This thrust is applied to...
emo
Views: 671
Replies: 1
Topic List
anandgardener's Avatar
Topic started 19 Jul 2016 12:15 by anandgardener
State the parts of an anchor and cable to be examined in the dry dock and describe the types of defects which may be noticed during Inspection. State with suitable sketch, how the cable is attached to the chain locker and reason behind it. Describe how water is cleared from Chain Locker....
anandgardener's Avatar
Last Post by anandgardener 19 Jul 2016 17:04
The most thorough inspection of the Anchor Chain in the Dry-Dock is called Ranging of the Anchor Cable. It means to take out the anchor chain from the ship, lay it out on the Dry-Dock's floor and the anchor chain is inspected to determine its condition....[image] What to look in Ranging 1) We look for...
emo
Views: 196
Replies: 2
Topic List
Anonymous's Avatar
Topic started 01 Jul 2016 08:54 by Anonymous
Oil in inspection tank can be found through the sight glass. Is there any other means to find it.? And what should be the actions following it's presence
anandgardener's Avatar
Last Post by anandgardener 02 Jul 2016 04:22
You should also refer to this report of Gard, highlighting the cause and the actions of oil ingress in the Boiler water system. www.gard.no/web/updates/content/51933/pr...er-feed-water-system
Moderators: serex
RSS
How to make new topic in Forum ?

Latest Forum Posts

  • No posts to display.

Forum Statistics

  • Total Users: 16.72k
  • Latest Member: AGUNGSKY
  • Total Posts: 3765
  • Total Topics: 3536
  • Total Sections: 12
  • Total Categories: 48
  • Today Open: 0
  • Yesterday Open: 0
  • Today Answer: 0
  • Yesterday Answer: 0
Golden Bollard 2017
SEARCH MEMBERS

SEARCH MARITIME MEMBERS

The Global Maritime Community has many type of players and many are members of this Club. You may find them as per your need by using the filter below

Search Member by Rank / Role

Tools