Increased fuel injection temperature and maintaining recommended viscosity of a new bunkers fuel oil

Purifier leaking bowl opened, cleaned n seal ring changed and put back but still leaking what might b wrong?

Ballast pump suction filters during ballast in port purpose of getting blocked frequently you should

Purpose of observation tank

To reduce sulphur corrosion of main engine components

Purpose of evaporator in domestic refrigeration system

Electrical fire extinguished by

Weldability steel depends on carbon equivalent

In RT flex engine which of the following comment of main engine made redundant

Sewage plant efficiency is gauged by

Corrosion occurs in cooling fresh water system of marine diesel engine

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?

Protection of zinc protective coating is good at

With ref to centrifugal p/p characteristics curves what will be the effect when p/p is started

Refrigerant compressor will run continuously

Excessive lubricator in compressor leads to

Refer cooling tubes act as self-cooling & expansion by

Steel is an alloy of iron carbon and alloying components what is the carbon content?

Sea water outlet temperature of LO cooler decreased while main engine load and sea water inlet temperature not changed this indicates

Effective suction blowing of exhaust gasket

Crude oil or crude oil+ballast water of same specific gravity ________ current in pump with same discharge pressure

High chloride of boiler water is caused by

Scale Formation in FWG evaporator side –

Pump, when coupled to constant speed motor , the discharge quantity will not change with following pumps

Which of the following is an important requirement for proper functioning of sacrificial anode system?

The actuator of ballast valve in duct keel in port to carry deballast open best practice

Which anode ICCP

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?

Exhaust gas boiler fire suitable measures

Centrifugal pump change over for pumping liquid of high specific gravity what will change?

When steel components electroplated with chromium are used in corrosive environment

Which vessel is mostly used for carrying NH3/ LPG

Purpose of preferential trip to prevent

Non destructive test is

over speed trip of generator—

___________ boiler feed pumps is used in modern ships

Hot work onboard

Centrifugal pump change over for pumping liquid of high specific gravity the discharge at the rated capacity will be

Single screw pump used as sludge pump the correct technical name.

In refrigeration circuit, the data logger will record what?

The coating on an electrode used for electric arc welding

The LO temperature

High pressure differential of a M/E LO filter only can be reduced by

In Stern tube, aft of FOREWARD SEAL is leaking then

Engaging the turning gear and turning the engine until working temperatures are reduced

Tube in air compressors , self compensating for expansion (if multi choice include coil tube also)

IG System number of no return valve

Flooding in E/R,

Overall length of pairs of rams is reduced in which of the following tiller designs of a steering gear arrangement?

Sudden closing and opening of valve in sea water pipeline leads to