Microsoft Word - 8 2018 AUG white ekm.doc

2009/FEB	2008/JUN	2006/APR	2011/MAR	2010/JUL	2010/MAR	2011/FEB
2010/N0v	2011/MAR	2010/APR	2011/OCT	2012/OCT	2013/OCT	2014/MAR
2015/FEB	2015/SEP	2OIO/OCT	2016/APR	2016/SEP	2017/JAN	2017/QCT
2017/DEC/Q2	2021/JUL/Q2	2021/AUG/Q2

Question

With regard to care of lubricating oils on board answer the following –A. What is microbial degradation of lubricating oil and how is it prevented? What methods are employed to ensure correct sampling for shore based testing? B. What action will you take If the testing results show abnormal values of water content and TBN for crank case lube oil of a slow speed main engine?/

2012/DEC	2013/SRI	2013/JUL	2014/AUG	2014/NOV	2015/JAN	2015/FEB
2015/JUN	2015/SEP	2016/FEB	2016/AUG	2016/OCT	2016/SR16	2017/JAN
2017/JUN	2017/JUL	2017/DEC	2018/JULY	2019/JUN	2020/FEB/Q3	2020/NQV/Q1
2021/JAN/Q9	2021/APR/Q1	2021/AUG/Q1

Question

(a) Describe the procedure to be adopted for the inspection of a safety valve fitted to an exhaust gas fired auxiliary boiler stating, with reasons, which parts should receive particularly close attention.

(b)Describe the procedure for the setting of safety valves of exhaust gas fired auxiliary boilers.

2010/DEC	2011/OCT	2OIO/OCT	2010/DEC	2009/JUN	2008/SEP	2007/SEP
2010/N0v	2007/SR5	2010/JUN	2012/SRI	2012/OCT	2012/DEC	2013/AUG
2013/SEP	2014/JAN	2014/JUL	2014/AUG	2014/NOV	2015/FEB	2015/JUN
2015/SEP	2015/DEC	2017/JAN	2017/DEC	2019/JULY	2021/JAN/Q4	2021/JUL/Q3
2021/JUL/Q7CM)	2021/AUG/Q7

Question

With regard to refrigeration system explain:

What are the possible reasons for hp cut out in the refrigeration system?

What are the indication if air is present in the refrigerant system and how to remove air from refrigeration system?

How unloader works in refrigeration system?

What are the possible reasons for Icing on evaporator coil?

Why compound gauge fitted in refrigeration system?

Nov 2020

Question

With respect to properties of fuel oil, explain the significance of the following terms; (a) Calculated Carbon Aromaticity Inbox (CCAI). (b) Open flash point and Closed flash point. (c) The importance of Sodium to Vanadium Ratio. (d) Octane Number.

Oct 2020 / JAN 2020/ MARCH 2020

2019/JAN 2019/FEB 2019/MAR/AUG 2019/ DEC 2019

2018/SEP

Question

With reference to fatigue of engineering components, explain the influence of stress level and cyclical frequency on expected operating life.

(a) Explain the influence of material defects on the safe operating life of an engineering component.

(b) State the factors which influence the possibility of fatigue cracking of a bed -plate transverse girder and explain how the risk of such cracking can be minimized

Oct 2020

Dec 2019

2009/SR7 2008/SR6 2007/SR7 2007/EM 2006/SR5 2011/SR2 2010/SR2 2010/SR1

2012/SR6 2013/SR2 2013/SR4 2013/SR6 2013/SR7 2013/SR10 2013/SR11 2013/SR12

2014/S03 2014/SR04 2014/SR07 2014/SR09 2014/SR12 2015/SR06 2015/SR10 2016/SR1

2016/SR7 2016/SR8 2016/SR11

Question

Draw a diagram of a 4 ram hydraulic steering gear showing

Pump isolating valves

Relief \ shock valves

By pass valve

Explain the operation of the system sketched

Indicate in the diagram the valve position for operation of the system when one pump is isolated and the unit is operating on 2 rams only.

OCT 2020 /JAN 2020/ MARCH 2020

NOV 2019

OCT 2017

Question

As second engineer onboard a tanker, describe the procedure for presenting a Main Boiler for survey by a classification society.

OCT 2020/ MARCH 2020

2019/FEB 2019/JUNE 2019

2017/APR 2018/APR

Question

Sketch a sealing arrangement for an oil lubricated stern tube. Identify the common forms of seal failure; State how oil loss due to seal failure can be restricted whilst on passage? What is the material used for sealing rings and propeller shaft liner?

Nov 2020

OCT 2020/

JAN2020/ MARCH 2020

2011/MAR 2010/OCT 2012/JUN 2013/SR1 2013/JUL 2016/FEB 2016/APR

2016/OCT 2017/APR 2017/OCT 2018/APR 2018/JUNE 2018/OCT 2019/FEB

2019/JUN 2019/SEP NOV 2019 DEC 2019

Question

Discuss the causes of corrosion and means by which corrosion of the following may be limited by manufacturers and ship’s personnel respectively: –

A. Internal and External surfaces of auxiliary steam lines; B. External surfaces of auxiliary boilers; C. Water boxes of sea water coolers and condensers; D. Main sea water inlet pipes.

OCT 2020/

JAN 2020

2019/JAN 2019/MAR/ NOV 2019

AUG 2018/JAN 2018/FEB 2018/SEP

Question

Describe with a sketch a pneumatic relay and show how feed back can be achieved when such a relay is used in conjunction with a flapper mechanism.

OCT 2020/

2015/AUG 2017/JUL 2018/JAN 2018/JULY 2018/AUG 2018/OCT

Question

With reference to the operation of two stage reciprocating air compressors explain the following terms:

a. Advantages of Multistage compression.

b. Significance of bumping clearance and adjustment thereof.

c. Reasons for reduction of compressor capacity.

d. Reasons and Effects of Second stage suction valve leakage

OCT 2020/

2018/OCT

Question

Cast iron is most widely used metal after steel in marine engineering

Most cast iron consist of graphite in steel like matrix.

Discuss the variation of properties that may arise with reference to pearilitic grey cast iron and spherical grey cast iron.

JAN 2020/ MARCH 2020

2019/APR/2019/JUN/2019/JULY /NOV 2019

Question

With regards to main transmission shaft flange coupling arrangements: A. Sketch a hollow type coupling bolt and the hydraulic head/nut and loading rod which are used to fit it; B. Describe how the bolt is fitted; C. State the advantage of the hollow coupling bolt as compared to the traditional type of coupling bolt.

FEB 2020/ MARCH 2020

JUNE 2019

JUL 2018/JAN 2018

JAN 2017/

Question

With reference to Vacuum Sewage System: (i) Sketch & Describe a Vacuum Sewage System. (ii) State the advantages of Vacuum Sewage System. (iii) State the different causes of dropping vacuum.

Nov 2020

JAN2020/ MARCH 2020

JAN 2019/MAR 2019 / OCT 2019/ NOV 2019

JUN 2018/SEP 2018/

Question

Detail the desirable properties of a refrigerant. Make a table and compare following refrigerants for use in a provision cooling plant for a 50000 DWT Oil tanker: R-22, R-134a.

JAN2020/ MARCH 2020

2019/MAR2019/JUNE 2019/ NOV 2019

2018/SEP

Question

You have recently joined a vessel as Second Engineer Officer. For the past several voyages it has been the practice on board to dispense with the use of the exhaust gas boiler and leave it to ran dry.

As part of an overall economy drive the company has requested you to re-commission the boiler.

Write a letter to the Superintendent Engineer stating how the boiler was brought on line and the safety valves adjusted

Nov 2020

FEB 2020

Question

Describe an automatic self-sludging centrifuge suitable for dealing with fuel of density up to 1010kg\m3 at I5deg C.

Explain how the centrifuge described in Question. (a) is able to remove water from a fuel, which has a density that is higher than that of water, and state any factors that may assist the operation.

Write out the start up procedure for the centrifuge described in Question (a)

FEB 2020

Question.

Explain how analysis of used lubricating oil can be used as a health monitoring tool for diesel engine

Describe how vibration measurement can be used with a main engine turbocharger

For fault analysis

For condition monitoring for maintenance

As a substitute to opening up machinery for survey.

FEB 2020

Question

With reference to hydraulic steering gear.

Sketch and describe

Single failure concept

100% redundancy

FEB 2020

Question.

(a) State why fixed pitch propellers have a poor efficiency when going astern.

(b) With reference to controllable pitch propellers, state:

(i) Why is it preferable that the main servomotor be housed in the propeller hub rather than in the shafting forward of the propeller shaft ?

(ii)What regular maintenance and checks should be carried out to ensure maximum - reliability of the gear at all times; Make

2009/JUN 2008/AUG 2008/JUN 2007/AUG 2011/JUN 2011/NOV 2011/DEC 2012/FEB 2014/JAN 2014/APR 2014/JUL 2015/DEC 2016/JAN 2016/AUG

2017/JUL 2018/AUG 2018/NOV 2018/DEC

FEB 2020

Question

(a) Explain why centrifugal pumps cannot handle air or vapours to effect priming yet turbo-blowers operating on the same principle can.

(b) If a vessel is fully laden, how may it be ascertained that the fire pump priming arrangements would operate satisfactorily in the ballast condition.

FEB 2020

Question

(a) Describe a transverse bow thrust unit using a controllable pitch propeller. Mention should be made of how it is supported and how the strength of thrust and reverse thrust are achieved.

(b) State with reasons, a suitable prime mover for the controllable pitch propeller.

(c) State whether the thrust unit delivers a relatively low pressure head with high volume output or high pressure head with low volume output.

FEB 2020

Question

Reverse osmosis is the modern alternative for shipboard production of drinking water.

Describe using simple diagrams if necessary, the principle of reverse osmosis.

1) Sketch a line diagram showing a single pass system for producing fresh water from seawater.

2) Describe such a system.

Nov 2020

FEB 2020

2007/FEB 2010/JUL 2012/FEB 2014/APR 2014/NOV 2015/AUG 2016/JAN

2018/JAN 2018/JULY 2018/OCT 2018/NOV /

Question.

Sketch a combustion gas system, suitable for inerting the cargo spaces of a vessel.

Describe the operation of this system.

State the percentage analysis by volume of the inert gas generated by the system in Question (a).

Jan 2020

2019/MAR/2019/APR/2019/AUG/2019/SEP/2019/OCT/ NOV 2019 / DEC 2019

Question

Describe the importance of maintaining the quality of lube oil in maintaining the proper health of marine diesel engines highlighting the role of (a) Automatic back flushing filters. (b) Lube oil separators (c) Magnetic filters (d) Visual Inspection (e) Periodic laboratory tests.

JAN 2020

2019/JAN 2019/FEB 2019/MAR 2019/ DEC 2019

2018/SEP

Question

Discuss the causes of corrosion and means by which corrosion of the following may be limited by manufacturers and ship’s personnel respectively: –

A. Internal and External surfaces of auxiliary steam lines; B. External surfaces of auxiliary boilers; C. Water boxes of sea water coolers and condensers; D. Main sea water inlet pipes.

JAN 2020

2019/JAN 2019/MAR/ NOV 2019

AUG 2018/JAN 2018/FEB 2018/SEP

Question

Sketch a ship's indirect refrigeration system arranged for cooling containers showed in stacks in the hold.

Describe the refrigeration system sketched in (a)

State the advantages of the system described in (a) compared with containers with their own refrigeration self-contained units.

Jan 2020

2019/JAN/2019/AUG 2019 NOV 2019

2006-7/SREMG/2007/APR/2006/SR5/2010/FEB/2014/AUGEM/2014/DEC/2015/JAN 2015/NOV/2017/MAR/2018/JUNE/

Question

You were asked to join a ship as second engineer. During briefing you were informed about frequent boiler uptake fires happening onboard. prepare a plan for to reduce boiler uptake fires. How will you monitor the progress of your plan and what instructions you will issue to the watch keepers?

2019/JAN 2019/FEB/MARCH 2019 / DEC 2019

2017/APR 2018/APR 2018/JUNE 2018/SEP 2018/OCT

Question

Sketch and describe the refrigeration system of a container carrying bananas only. How does the controlled atmosphere of the container extend the green life and shelf life of bananas? How is the airflow system designed?

2019/APR 2019/JULY / DEC 2019

Question

With respect to refrigeration gases used on-board vessels, answer the following A. Explain Ozone Depleting Potential (ODP) of conventional refrigerant gases. B. Name the alternate refrigerant gases available and being used onboard. C. What steps are taken to minimize the release of refrigerant gases from the plant during normal operation and maintenance activities?

DEC 2019/FEB 2019/ JUNE 2019/ DEC 2019

OCT 2017/SR1 2017/JUN 2017/JUL 2017/DEC 2018/JULY 2018/AUG2018/NOV 2018/

Question

With reference to Boiler water tests carried out onboard:

A. Discuss the possible reasons for the following changes in boiler water test results, and state what actions should be taken in each case;1. Reduction in total dissolved solids and chemical reserves.2. Reduction in phosphate reserve, with increase in chlorides and total dissolved solids;3. Reduction in alkalinity reserve only.4. Increase in oxygen levels only.B. State why the complete results of boiler water tests are logged or entered into a data retrieval system rather than a note being made of any particular result which may be outside set limits.

2019/FEB/ DEC 2019

DEC 2018/AUG 2018/NOV 2018/DEC

Question

Sketch and describe a system for oil monitoring of bilge and tanker ballast discharges. What inputs are recorded? Explain the difficulties encountered with the efficient operation of the oil monitoring system.

2019/JAN / NOV 2019

2018/APR 2018/JUNE

Question

(a) Sketch and describe a gear type pump indicating the flow of fluid.

(b) State the materials that gear type pump components may be manufactured from.

2019/APR 2019/JULY 2019/AUG 2019/OCT

Question

Damage has occurred to the main engine exhaust valves and the fuel supplied at a particular port is suspected. The owner’s case/ however, in the ensuing dispute may be weak because the fuel was ordered specifying only type and viscosity.

A. Apart from fuel specification, describe how you, as Second Engineer, should have assisted the owners’ case when receiving the suspect fuel.

B. Describe a recognized ISO fuel standard that may be used when ordering bunker fuel.

C. Explain how the correct fuel standard selected.

D. Suggest, with reasons, why particular mention should be made of certain elements that might not be included in the fuel standard.

2011/MAR 2012/JUN 2016/APR 2017/APR 2017/OCT 2018/APR 2018/JUNE 2019/SEP

Question

A. Explain Creep; Brenelling; Fretting; Fretting corrosion; State, with reasons, where these may occur in ship propulsion System.

Nov 2020

2009/JUN 2008/NOV 2008/JUN 2008/SR1 2007/FEB 2006/EMG 2009/DEC 2012/MAR 2014/FEB

2014/OCT 2015/AUG 2017/APR 2017/JUL 2018/JAN 2018/FEB 2018/JUNE 2018/JULY 2018/OCT

2019/FEB 2019/SEP

Question

You have been appointed as the Second Engineer of an eight years old vessel, recently purchased by your shipping company. Write a report to the engineering superintendent covering the inspection of main propulsion machinery carried out by you, to ensure its trouble free operation.

2009/FEB 2008/MAR 2005-6/SR EM 2010/JUL 2010/JUN 2010/SEP 2012/SEP

2019/APR

Question

With respect to Energy efficient running of ships; (a) Sketch and explain the optimization of propeller hull interface flow devices and improvement of propulsion efficiency. (b) Sketch and explain the optimization of Auxiliary machinery using VFDs.

2019/JULY

Question

Sketch and describe a high pressure cut-out in a refrigeration system.

b) The refrigeration compressor has stopped due to operation of the h. p. cut-out. Explain

(i) The possible causes.

(ii) How these causes would be found and possible remedies.

2019/APR 2019/JULY

Question

With reference to Inert Gas Generator fitted on gas carriers: a. Sketch a line diagram showing a typical ‘Inert Gas System’ used for inerting in gas carriers, labelling the component parts.b. Describe the system. c. State the function of a chiller used in this type of inert gas generator.

2019/JULY

Question

Describe, with the aid of sketches where necessary, a rotary vane type steering gear showing, how the weight of the rudder and stock are carried and the arrangement that allows for wear down?

State how the vanes described in a are secured and the method of sealing the edges

Explain why the stator pressure chambers are usually duplicated.

State what considerations determine the number of vanes.

2009/JUL 2007/JUL 2008/JUN 2007/OCT 2010/SEP 2010/JUN 2010/FEB 2013/APR

2013/JUN 2013/JUL 2013/NOV 2014/FEB 2014/MAR 2014/AUG 2014/SEP 2015/APR

2015/OCT 2017/SEP 2017/NOV 2018/FEB 2019/APR

Question

With reference to auxiliary boiler safety valve: A. Describe, with aid of a Sketch the safety valves for an auxiliary boiler; B. Identify, with reasons, the part that require particularly close attention during overhaul; C. Describe how the safety valves are reset after an overhaul.

2019/APR

Question

Hyper mist system in your ship often gets activated on top of Incinerator unit. Write a letter to company, to introduce an additional layer of activation for system, so that false alarm activation is stopped.

2019/JAN 2019/MAR 2019

2018/SEP

Question

Sketch a section through a keyless propeller

State the advantages of using a keyless sleeved propeller

State with reason which metal sleeve should be made for contact with forged mild steel tail shaft

State with reason the material used to bond the sleeve to the propeller and the general thickness of the bonding material.

SEP 2017/JUN 2018/SEP 2019/JAN 2019/MAR 2019

Question

Sketch and describe a “fail safe steering gear” suitable for use on a tanker of more than 100,000 T dwt; Explain the sequence of events that take place when an oil leak takes place in one of the hydraulic pipe lines.

DEC 2017/JUL 2018/JULY 2018/AUG 2018/OCT 2019/FEB 2019

Question

(a) Describe the principle of a coil-operated brake suitable for winches and other deck machinery

(b) Explain with suitable sketches how the windlass is relieved of strain when riding at anchor

On hoisting machine or windlass in particular a brake is provided for safety

2015/OCT 2015/DEC 2018/AUG 2018/NOV 2018/DEC

Question

With reference to Boiler water tests carried out onboard:

Discuss the possible reasons for the following changes in boiler water test results, and state what actions should be taken in each case;

Reduction in total dissolved solids and chemical reserves.

Reduction in phosphate reserve, with increase in chlorides and total dissolved solids;

Reduction in alkalinity reserve only.

Increase in oxygen levels only.

State why the complete results of boiler water tests are logged or entered into a data retrieval system rather than a note being made of any particular result which may be outside set limits

2009/JUN 2008/APR 2007/JUL 2011/OCT 2011/JUN 2011/DEC 2012/SR09 /2015/DEC 2018/AUG 2018/NOV 2018/DEC

Question

With respect to tankers describes: – A. How a pump room is ventilated? B. How cargo tanks are ventilated? C. Cargo tank protection as per SOLAS 1974; D. Additional alarms provided for inert gas systems of the ‘inert gas generator’ type.

How the boil off from liquefied natural gas is handled?

The main problem of carrying liquefied natural gas.

2009/FEB 2008/DEC 2008/APR 2007/JUL 2010/FEB 2012/JUN 2013/JUN 2013/R11 2013/DEC/ 2014/EM/2014/SEP/2015/JUN/2015/OCT/20156/JUL/2016/NOV 2016/DEC/2018/MAR/2018/AUG/ 2018/NOV 2018/DEC

Question

With respect to refrigeration gases used on board vessels answer the following.

Explain ozone depleting potent ional of conventional ref gases.

Name alternative refrigeration gases available and being used on board

Explain the steps you will take to ensure that release of refrigeration gases from the plant is minimized during normal operation and during maintenance activities.

2013/SRI/2013/AUG/2015/JAN2015/FEB/2017/JUL/2015/SEP/2016/FEB/2016/AUG/2016/OCT/2017/SRI/2017/JUN/2017/DEC/2018/JULY/2018/AUG/2018/NOV/2018/DEC

Question

How the ingress of sea water is prevented in an oil lubricated stern bearing system. Should the system fail, describe the corrective action possible whilst the vessel is afloat? State the reasons for fitting two stern bearing oil header tanks in some cases?

2010/DEC/2012/JUL/2012/OCT/2013/APR/2015/FEB/2015/MAR/2015/SEP/2016/JUL/2016/NOV/2017/FEB/2017/DEC/2018/AUG/2018/NOV/2018/DEC

Question

Describe the in-water survey to classification society requirements of the external underwater structure of a very large crude carrier.

JUNE/2014, DEC/2018

Question

You have been appointed as second engineer on a crude carrier, recently purchased by your shipping company. The company superintendent requests that you examine the vessel with a view to increasing its deadweight capacity without altering the ship’s length. Outline the suggestions that you would make, justifying your proposals

DEC2018

Question

With respect to main boiler super heater arrangements:

Compare the advantages and disadvantages of contra flow with parallel flow design

Describe how the element tube banks are supported yet allow for expansion

Describe how boiler carryover affects super heater effectiveness and condition.

JUNE2014/SEPT2016/DEC2018

Question

A rudder of a vessel requires extensive welding repairs and as Second Engineer you are requested to supervise.

Suggest a suitable type of welding_ process.

State, with reasons, FOUR common welding defects

State what tests may be carried out before returning the rudder to service.

2009/AUG 2008/FEB 2007/MAR 2007/FEB 2012/SR1 2014/JAN 2015/AUG

2018/JAN 2018/AUG 2018/NOV

Question

Compare and contrast the destructive testing done on engineering materials with non destructive testing done on engineering components.

Briefly describe 1 destructive test and 2 non destructive test to illustrate the answer.

2015/FEB 2015/JUN 2015/SEP 2016/SR16 2017/JAN 2017/DEC 2018/NOV

Question

Explain in detail the advantages and disadvantages of controllable pitch propellers. With suitable single line diagrams, explain the ‘Combinator Control’ for CPP.

Oct 2018

Question

Sketch and describe a boiler water level controller of the float operated type. State the reasons for having this mechanism on the boiler and using this controller and boiler for analogy. Explain the following terms:

Detecting element; B. Servo motor; C. Desired Value

2014/FEB/2014/JUL/2015/AUG/2017/JUL/2018/JAN/2018/FEB/2018/JULY/2018/SEP

Question

You have been appointed as Second Engineer of an older vessel which is in dry-dock and recently been purchased by your shipping company.

Describe, in detail about your inspection, to ensure that the equipments on board ship related to safety equipment (equipments related to fire fighting and life saving) survey are satisfactorily complied with.

2011/FEB 2004/AUG/2010/SRI 2011/JUL 2011/DEC 2013/JUL / 2015/QCT / 2016/MAR / 2018/MAR / 2018/JUNE

Question.

(a) State the advantages of using steam turbine propulsion power for vessels carrying L.N.G. cargo

(b) With regard to the use of L.N.G. cargo as boiler fuel explain;

(i) The safety precautions relating to the gas pipeline supplying the boiler and burning the gas in the boiler;

(ii) The Means of getting rid of excess cases during loading or discharge-

2009/JUL / 2008/APR] [2007/SREMG/2007/AUG/2007/JUN/2007/SRI/2010/APR/ 2010/MAR / 2010/SRI/2009/DEC 2011/JUL 2013/JUN 2014/FEB 2014/SEP

2018/FEB 2018/MAR/ 2018/JUNE

Question

Discuss the importance and methods employed in maintaining the quality of lubricating oils in main and auxiliary diesel engines. As second engineer, what strategy you would employ to ensure that the main engine crank case oil quality is ensured.

2017/APR/ 2018/APR

Question

State with reasons how cracking in each of the following location is caused rectified and avoided

A frame

Bedplate longitudinal girder

Bed plate transverse girder

2011/MAR 2010/QCT 2013/SR1 2016/FEB 2016/APR 2016/0CT 2017/APR 2017/QCT 2018/APR.

Question

With regards to steering control system.

Explain following with the aid of suitable diagram.

Safematic concepts;

The flow reversal of main hydraulic pump and advantages;

The flow volume variation of hydraulic pump and method of achieve;

Hunting lever functioning.

2018/March

Question

Describe the possible faults which may be found during a dry-dock inspection of the following; A. Stern frame; B. Sea chest; C. Bilge keel; D. Anodes; E. Rudders.

2009/SR2 2008/SR12 2008/SR4 2007/SR7 2005-EM 2010/SR4 2010/SR3 2012/SR9 2013/SR7 2014/SR09

2015/SR06 2015/SR10 2018/SR03

Question

With reference to reciprocating air compressor explain why.

Clearance volume is critical to efficiency.

Spring loaded Plate type valves are invariably used.

Compression is accomplished in apparent unequal stages.

Inter cooling is used between stages.

2009/SR7 2008/SR4 2012/SR9 2014/SR02 2014/SR07 / FEBRUARY 2018

Question

A new vessel exhibits severe after end vibration.

(a) As 2nd Engineer, outline a procedure to investigate and; identify the source of the vibration.

(b) Suggest possible remedies to obviate/reduce aft end vibration.

2008/SR12 2008/SR4 2012/SR9 2014/SR02 / FEBRUARY 2018

Question.

(a) With respect to auxiliary boiler water level maintenance and indication, describe, with the aid of sketches, the sensing devices for:

(1) A feed pump control (2) Local water level (3) Remote water level,

(4) Low and high water level alarms.

OCTOBER 2015/ AUG 2016/ June 2017

Question

With reference to electro-hydraulic steering gears:

Explain in terms of control parlance the function of the "Hunting gear"

Explain the consequences if the standby pumping unit is motored;

State TWO methods employed to prevent the standby hydraulic pump being motored by the operating unit

2009/SR2 2007/SR5 2006/SR9 2010/SR11 2010/SR7 2011/SR7 2011SR/10 2012/SR1

2012/SR10 2012/SR12 2013/SR09 2013/SR10 2014/SR01 2014/SR07 2014/SR11 2015/SR02

2015/SR09 2016/SR09

2017/SR 01/ SR 12

Question

With reference to multi-tubular heat exchangers explain: (A) How and where impingement attack is likely to occur in the tubes (B) Why is it desirable that coolant flow rate should not exceed that required to maintain correct fluid temperature (C) Ample well-shaped water boxes and smooth tube inlets are desirable (D) Partial obstruction of tube bore is a common cause of tube failure.

2012/SR7 2012/SR10 2015/SR02 2015/SR09

2017/SR 01/ SR 12

Question

A. Explain the necessity of intercoolers on a multi-stage compressor. What attention is required to keep them safe and in good working order?

Sketch and describe an intercooler suitable for a 2400kpa compressor and state materials used.

What attention is needed before opening up for inspection? What faults are likely to develop in an air compressor and how are they remedied.

2012/SR7 2012/SR10 2013/SR4 2015/SR02 2015/SR03 2015/SR09

2017/SR 01/ SR 12

Question

Sketch in diagrammatic form, a refrigeration unit operating on the vapour compression system.

Describe how it operates and how adjustments can be made to its operating temperature.

What effect will the following have on its operation

A high ambient temperature

Gradual loss of gas.

Dirty heat exchanger

2015/SR04 017/SR09

Question

During routine soundings it is found that leakage into a cofferdam is occurring from an adjacent deep cargo oil tank.

As Second Engineer state the procedure for directing safe entry by the engine room staff to ascertain the cause of the leakage.

If the leakage persists discuss EACH of the following options as a possible remedy:

(i) Leave the cofferdam to flood with oil

(ii) Flood the cofferdam with sea water

(iii)Seal the cofferdam and pressurize with air

(iv)Pump the leakage to bunker tanks.

2007/SR5 012/SR1 012/SR8 013/SR09 013/SR11 014/SR01 015/SR04 016/SR09 016/SR12

2017/SR09

Question.

Discuss, with reference to the super heater outlet temperature of a main boiler operating at a constant load, the following statements:

An increase in excess air will tend to cause a decrease in super heater outlet temperature due to the cooling effect of more air being introduced.

A decrease in economizer inlet temperature will tend to cause a decrease in super heater outlet temperature due to the cooling effect of more water being introduced.

Badly fouled generating tube banks will cause an increase in the super heater outlet temperature.

Excessive amounts of total dissolved solids in the boiler water will cause variations in the super heater outlet temperature.

2012/SR8 013/SR3 013/SR09 2 013/SR11 015/SR04 016/SR12 017/SR09

Question

With reference to hydraulic system for deck machinery identify:

The types of contamination likely to be found in hydraulic systems for deck machinery

The sources of such impurities;

Means used to prevent problems with contamination.

Possible effects of the oil contamination on the system.

2007/SR5 2006/SR9 2010/SR8 2011/SR9 2012/SR1 2012/SR8 2012/SR11 2012/SR12

2013/SR09 2013/SR11 2014/SR01 2014/SR08 2014/SR10 2014/SR11 2015/SR3 2015/SR04

2016/SR07 2016/SR11 2016/SR12 2017/SR02 2013/SR8 2015/SR06 2017/SR09

Question

Sketch and Describe 2 Methods that employ Man METRIC Means for Measuring Tank Contents

State What Corrections are to be made to the Reading Obtained by the Methods Described?

Explain how Bunkering Requirement May Be Estimated When no Records of Main engine Fuel Consumption are available

2008/SR4 2007/SR10 2007/SR1 2006/SR4 2010/SR1 2012/SR4 2013/SR3 2013/SR6 2013/SR11

2014/SR6 2014/SR9 2015/SR04 2 016/SR12 017/SR09

Question

Sketch and describe a cargo space inert gas system producing washed gas from either a main boiler or from an independent gas generator module.

Why is the inert gas producing system you have described not suitable for a machinery space fixed fire fighting system?

Elaborate the alarms and cut-outs incorporated in the system to prevent any accident.

Explain the various protections for cargo tanks with respect to pressure vacuum build up inside the tanks

2007/SR5 2007/SR4 2010/SR4 2010/SR3 2011/SR2 2012/SR4 2012/SR8 2012/SR11 2013/SR2

2013/SR3 2014/SR10 2013/SR03 2017/SR02

Question

Sketch suitable welded joints indicating the approximate plate thickness and dimensions of preparation for the following purposes - A. End plate connection to the shell of an unfired pressure vessel;

B. Longitudinal seam of an unfired pressure vessel; C. Prefabricated combustion chamber for an auxiliary boiler

2011/SR2 2014/SR03 2014/SR12 2016/SR09 2017/SR03 2017/SR06

Question

a) The UMS monitoring and control system of your ship has recently started to give false alarms and incorrect data printouts. State, with reasons, possible causes if the false alarms and readings are:

i) Localised to a particular area of engine operation.

ii) General to the engine room

b) State, with reasons, the action you, as 2nd Engineer, would take to ensure continued safe operation of the vessel if the defects were general to the engine room

c) Explain the procedure you, as 2nd Engineer, would adopt in order to locate and rectify a general fault in the UMS system.

2007/SR6 2006/SR3 2011/SR2 2014/SR03 2016/SR09 2017/SR06

Question

With reference to oil/water separators:

Describe, with the aid of a sketch, the working of such a separator;

Explain the consequences if the interface detector position is incorrect.

Enumerate the various possibilities by which oil/water interface can be disturbed.

OCT 2020/

Question

With regards to boiler water level control. Explain the following

Shrink and swell phenomenon; B. Cascade control; C. Split control; D. Condensing chamber - Function and location.

2017/SR08 2018/SR03

Question

Sketch a high lift safety valve and seat detailing their special features

Describe how such a valve is overhauled and any clearance that should be measured and noted.

2011/SR2 2010/SR4 2010/SR3 2010/SR1 2009/SR12 2013/SR2 2013/SR6 2013/SR7 2013/SR11

2014/SR03 2014/SR04 014/SR8 EM 2014/SR9 2015/SR01 2015/SR04 2016/SR07 2016/SR11 2016/SR12

2017/SR09 2017/SR11 2018/SR03

Question

With reference to sleeved keyless propeller assemblies:

(a)

(i) State, with reasons, the metals used in the manufacture of the sleeve and tail end shaft;

(ii) State the type and thickness of material used to bond the sleeve to the propeller boss.

(b) When removing the propeller from the tail end shaft, state why the following procedures are not recommended:

(i) Application of push off force by means of wedges or jacks and draw off force by strong back; (ii) Expansion of propeller boss by concentrated local heating with gas torches

2008/SR12 2008/SR9 2007/SR9 2006/SR5 2007/SR3 2007/SR4 2010/SR2 2011/SR4 2013/SR2

2014/SR02 2014/SR6 2014/SR08EM 2014/SR12 2015/SR01 2017/SR03

Question

With respect to Gas carrier, Sketch and describe a ship's reliquefaction system for conditioning and reliquetuction of liquefied cargoes like propane and butane.

2019/OCT

Question

With reference to the fuel standards ISO-8217-2017 discuss the amendments made as compared to its previous edition. Explain the significance of the following: (a) Pour point, cloud point and cold filter plugging point. (b) Cat fines (c) Fatty Acid methyl Easter (d) Dissolved H2S in fuel.

2019/OCT