Exhaust gas boiler fire suitable measures
over speed trip of generator—
High chloride of boiler water is caused by
Non destructive test is
Excessive lubricator in compressor leads to
The actuator of ballast valve in duct keel in port to carry deballast open best practice
Electrical fire extinguished by
Centrifugal pump change over for pumping liquid of high specific gravity what will change?
Ballast pump suction filters during ballast in port purpose of getting blocked frequently you should
Overall length of pairs of rams is reduced in which of the following tiller designs of a steering gear arrangement?
Sewage plant efficiency is gauged by
Increased fuel injection temperature and maintaining recommended viscosity of a new bunkers fuel oil
Purpose of observation tank
The coating on an electrode used for electric arc welding
Engaging the turning gear and turning the engine until working temperatures are reduced
Purifier leaking bowl opened, cleaned n seal ring changed and put back but still leaking what might b wrong?
In refrigeration circuit, the data logger will record what?
Fixed vane type emergency fire pump priming vacuum pump. After one week fire pump not taking suction. The vacuum pump is engaging, but not developing vacuum in the suction side. What will be the cause?
With ref to centrifugal p/p characteristics curves what will be the effect when p/p is started
Corrosion occurs in cooling fresh water system of marine diesel engine
In Stern tube, aft of FOREWARD SEAL is leaking then
Single screw pump used as sludge pump the correct technical name.
Protection of zinc protective coating is good at
In RT flex engine which of the following comment of main engine made redundant
Effective suction blowing of exhaust gasket
Tube in air compressors , self compensating for expansion (if multi choice include coil tube also)
High pressure differential of a M/E LO filter only can be reduced by
Sudden closing and opening of valve in sea water pipeline leads to
To reduce sulphur corrosion of main engine components
IG System number of no return valve
Scale Formation in FWG evaporator side –
Pump, when coupled to constant speed motor , the discharge quantity will not change with following pumps
When steel components electroplated with chromium are used in corrosive environment
Weldability steel depends on carbon equivalent
You as a fourth engineer have taken over watch from third engineer. He said OWS is running in 0 ppm. But after taking over watch you observed that fresh water flushing valve is crack open. After closing it, suddenly the oil content has exceeded 15ppm. What will you do?
Steel is an alloy of iron carbon and alloying components what is the carbon content?
Which vessel is mostly used for carrying NH3/ LPG
___________ boiler feed pumps is used in modern ships
Crude oil or crude oil+ballast water of same specific gravity ________ current in pump with same discharge pressure
Refer cooling tubes act as self-cooling & expansion by
Purpose of evaporator in domestic refrigeration system
Centrifugal pump change over for pumping liquid of high specific gravity the discharge at the rated capacity will be
Purpose of preferential trip to prevent
Sea water outlet temperature of LO cooler decreased while main engine load and sea water inlet temperature not changed this indicates
Which of the following is an important requirement for proper functioning of sacrificial anode system?
Refrigerant compressor will run continuously