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CRANKSHAFT TYPES : Crankshaft can be of four types :- a. Fully built crankshaft:- Various parts  of this crankshaft is shrink fitted . b. Semi-built crankshaft:- Various parts such as crank throw and pin are of single piece case. c. Welded crankshaft:- webs , crankpin and half journals are welded together. d. Flanged coupling crankshaft:- these are of two pieces and joined together by flanged coupling . Source : scribd.com

What is indicator card ? And why it is taken . It is the diagram which is pressure between the relative position of piston in the cylinder i.e volume . It is  taken to 1. Calculate the indicated power of an engine. 2. Examine the scavenging and exhaust process. 3. To find out the peak pressure and compression pressure . 4. To examine the combustion process inside the cylinder .

Mechanical Governor 1. It uses flyweight to determine the engine speed . Electrical Governor 1. It uses magnetic pick - up coil to determine the engine speed . Mechanical Governor 2. Vertical spindle is connected through flyweight which transmits the actuating signal to hydraulic unit to operate the fuel control lever . Electrical Governor 2. It uses rectified dc voltage signal to actuate the hydraulic unit to operate the fuel control lever .

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

Safety questions Mmd delhi Surveyor _ meena Function 3. 1. Semi portable fire extinguisher... 2.garbage color coding 3.steering gear regulations full.... But he wanted to hear alarms and trips... 😂😂😂😂😂 4.mechanism of overload alarm in steering gear... 5.ISM with proper names and isps.. 6.all types of detectors, location, working, and cross questions on smoke detector.... 7.hyoermist and sprinkler which one is better... 8.ballast line diagram of ship and how ballast lines are passed through ship if duct keel is not there and ship is single hull.. Screwed me on this question... 9.damage stability and safeties of grain cargo loading... Decider... If you are at port and security level 3 is maintained food and water on ship is over... How to take food on board....?? Rrsult- LAL KITAB😎😎😎😎😎...... THANKS A LOT BROTHERS FOR HELPING...