Skip to main content

Safety , Mep

Safety

Gear less bc and gear bc (half right)

Hatch coaming construction (wrong figure)

Engine room crane all type of motion and then safties and explain how all safety work.  70%

Chapter 12 of solas and all regulations and explain main safety in it 50% (given only title)

Mep motor

Types of lubrication

What type of lubrication between bearing of main engine(Right)

Boiler burner construction and working (30%)

Overhaul of centrifugal pump(right)

Pv diagram of air compressor with intercooler effect explain(50%)

Material of piston ring
Crown.

Burner shaft of pump and why they choose this material why not another (70%)

Engine specification

Welding types defect with fig explain
Soldering

Brazing difference between all 3(50%)

No decider go home study well

Comments

Popular posts from this blog

Difference between Attemperator and De-superheater

Attemperator are fitted in order to keep the steam temperature in the final stages of the superheater within certain desired limits . This is done for two main reasons . 1. The most important is the protection of the superheater tube material from the effects of overheating. *Mild steel superheater tubes tubes should not be subjected to steam temperatures in excess of 455℃. 2. The formation of bonded deposits on superheater tubes can be reduced if steam and gas streams within certain temperature ranges are prevented from coming into contact of each other. De-Superheater is used to reduce the temperature of a quantity of superheated steam and make it suitable for used in auxiliary services requires low temperature or saturated steam . *The reason for doing this way rather than by taking the saturated steam direct from steam drum , is to protect the superheater , these must be protected against overheating under all conditions of load by circulating steam through them . *Al...

Cross and loop scavenging Disadvantage

Cross scavenging Disadvantage 1. It requires longer  piston skirt to prevent exhaust gas and air leaks from the ports when piston is at TDC . Loop scavenging Disadvantage 1. Both exhaust port and scavenge port are at the adjacent side of the liner which causes temperature differential problem for the liner material . Hence , we are using mostly the uniflow scavenging which is having very lesser mixing and better scavenging efficiency. Source : DA Taylor