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ALFIDELFI

Q1.

With respect to the operation of two stage air compressor. Explain: A. The causes of occasional lifting of 2nd stage relief valve. B. Breakage of valve plates.C. Puncture of bursting disc of 1st stage intercooler.D. Noticeable reduction in capacity of the compressors over a period of time.

Oct 2020

2018/SR09 2018/SR11 2019/JAN 2019/MAR 2019/APR 2019/JUN 2019/JULY 2019/SEP

Q2. /Q34.

Describe TWO methods of tracing a superficial crack in a marine machinery component.

Explain how propagation of a crack in a machinery component can be arrested.

2015/SR11 2016/SR08 2017/SR02 2017/SR11 2018/SR09 2018/OCT 2019/JAN 2019/MAR

2019/APR 2019/JUN

Q3.

Abnormal vibration has been observed in an HFO purifier while in operation. Explain the areas you plan to investigate for rectifying the faults and put back the purifier back to normal operations keeping in view that no reduction in vibration has been noticed even after desludging the purifier couple of times.

2018/SR09 2019/JAN 2019/MAR 2019/APR 2019/JUN 2019/JULY 2019/SEP

Q4.

With the aid of a simple sketch, explain the “trouble spots” in a basic air-conditioning unit with reference to your sketch, explain the following: -i. How the problem of increase in humidity on cooled air is overcome? ii. How discomfort caused by the excessive drying effect of heated air is overcome?

2007/SR03 2012/SR01 2012/SR02 2012/SR12 2014/SR03 2014/SR12 2015/SR08

2016/SR09 2016/SR12 2017/SR06 2017/SR07 2017/SR08 2017/SR10 2018/SR08

2018/SR09 2019/JAN 2019/FEB 2019/APR 2019/JUN 2019/JULY 2019/AUG

Q5.

State the circumstances owing to which it may be necessary to renew an exhaust valve; B. Explain how the exhaust valve is removed and fitted back; C. State the important checks to be made on the engine before after fitting the exhaust valve.

2010/SR01 2005/SR02 2012/SR01 2012/SR12 2013/SR01 2013/SR8 2013/SR10

2013/SR11 2014/SR01 2014/SR03 2014/SR11 2014/SR12 2015/SR01 2015/SR08

2015/SR11 2016/SR06 2016/SR12 2017/SR03 2017/SR10 2017/SR11 2017/SR12

2018/SR01 2018/SR09 2018/QCT 2019/JAN 2019/MAR 2019/APR 2019/JULY

Q6.

Describe the procedure for overhauling a boiler safety valve and explain using sketches where necessary, those parts, which require close attention. Also describe the procedure setting of boiler safety valves.

2010/SR01 2010/SR09 2010/SR10 2011/SR01 2011/SR03 2012/SR9 2015/SR10 2016/SR08 2017/SR02

2018/SR02 2018/SR02

Q7.

Describe with a neat sketch the principle and operation of Biological & Chemical Sewage treatment plant. (a) What do you meant by B.O.D. What is the significance of B.O.D. (b) What are the discharge criteria according to MARPOL Regulations? (c) What routine maintenance is carried out on such Sewage treatment plant?

2019/APR 2019/JULY 2019/SEP

Q8.

Explain in detail how you would isolate one of sprinkler system for routine maintenance. Describe all tests and inspections you would make and how you would return the system to service.

2008/SR12 2008/EMG 2007/SR2 2011/SR4 2011/SR4 2009/SR1 2008/SR4

2008/SR7 2011/SR9 2012/SR4 2012/SR10 2012/SR11 2013/SR1 2013/SR8

2013/SR09 2014/SR02 2014/SR11 2015/SR03 2015/SR04 2015/SR06 2016/SR03

2016/SR10 2016/SR11 2017/SR04 2017SR09 2018/SR07 2018/SR11 2019/FEB

2019/JUN ^ 2019/JULY

Q 9.

List the maintenance routines you plan to carry out on the deck hydraulic cranes, winches and mooring machineries before arrival port after a long voyage, considering the fact that cargo operation is solely dependent on the proper Functioning of the crane and winches.

2019/APR 2019/JULY 2019/SEP

Q 10.

With reference to reciprocating air compressors explain the cause of the following faults.

Collapse of discharge valve springs.

Breakage of plate valves,

Overheating of the discharge air with an unrestricted air intake,

Inoperative piston rings.

Oct 2020

2008/SR6 2011/SR2 2006-07/EM 2011/SR8 2012/SR6 2013/SR4 2013/SR12

2014/SR07 2014/SR08 2016/SR01 2016/SR07 2019/FEB 2019/AUG 2019/QCT

Q 11.

What is Metal-locking? What types of repairs are carried out by metal-locking? Describe the repair procedure using Metal-Locking.

Q 12.

Describe the procedure for overhauling Main Air compressor Valves (Plate type) and explain which parts require close attention, using sketches where necessary. Also describe the procedure for testing of these compressor valves.

Q 13.

Explain why auxiliary engine bottom-end bolts are prone to failure, even under normal running conditions.

Identify those features, incorporated into the design of bottom-end bolts, to inhibit failure. Explain how this tendency is either aggravated or inhibited during maintenance and what checks are to be carried out

Oct 2020

Q 14.

Enumerate the maintenance routines carried out for the proper functioning of the following systems :

Water hyper mist system.

Smoke detection system.

Quick closing Valves.

Fire hydrants and hoses.

2018/SR09 2019/FEB

Q 15.

With reference to auxiliary boiler safety valves:

Describe with the aid of a sketch, the safety valves for an auxiliary boiler.

Identify', with reasons, the parts that require particularly close attention during overhaul;

Describe how the safety valves are reset after an overhaul.

2009/SR7 2008/SR6 ^ 2007/SR5 2006/SR9 2011/SR2 2011/SR7 2011/SR11 2013/SR02 2019/FEB

Q 16.

If soon after joining a motor ship, you found a number of holding down bolts slack and fretting to have occurred in the area of slack bolts describe how you would handle the situation?

Q 17.

During the past four months since you joined the ship as Second Engineer a number of main engine exhaust valves have suffered cracking and corrosion at the seating faces. Write a report to the Superintendent Engineer covering the following points:

An explanation detailing how the problem becomes evident.

Your action upon recognizing the extent and seriousness of the problem.

Your reasoned views regarding the possible causes of the problem.

Your recommendations to avoid future incidents.

2009/SR4 2008/SR7 2005-6/EMG 2011/SR3 2010/SR10 2015/SR02 2015/SR04

2015/SR10 2018/SR02 2019/FEB 2019/AUG 2019/QCT

2019/QCT

Q 18.

A marine engine jacket cooling water (shell and tube type) cooler end cover is badly corroded and holed. Other than replacing it, suggest some measures of repairing it (a) While in operation, (b) When not in operation. Repair procedures must be effective, practicable and innovative.

Q 19.

With Reference to Fire Pumps:

Explain how and when fire pumps should be tested, what are the requirements as per SOLAS 74, as amended.

Describe the routine maintenance to be carried out on the various fittings on a fire line, giving testing pressure where appropriate.

Describe briefly how will you dismantle a fire pump for survey. Give details of factors which will decide on replacing the parts.

Q 20.

With Reference to Main Engine Fuel Pumps:

Explain how the setting of a variable injection timing fuel pump is checked and adjusted.

State why it may be necessary to adjust the settings of a variable injection timed fuel pump.

Q21.

During the weighment of CO2 bottles required for total flooding of Engine room, it was observed that few bottles are less than the original capacity. State the reasons for the same and checks / tests to be made prior refilling;

B. State how often the CO2 bottles are required to be weighed and pressure tested.

Q22. Question

Express your reaction and state the subsequent investigation you would make on a used diesel engine oil sample indicated the presence of appreciable amount of

iron, copper, antimony, tin and silicon.  

2015/SR09 2017/SR01 2018/SR04

Q23.

Write short notes on following:

A. Magnetic Particle Inspection (MPI)B. Ultrasonic Testing (UT) C. Radiographic Testing (RT).

2018/SR09 2019/MAR 2020/JAN 2020/FEB/Q6

Q24.

Sketch and describe a suitable means of withdrawal procedure for the removal of keyless propellers.

Q25.

Severe engine vibration has recently become evident when the main engine for which you are responsible operates within a certain speed range.

State, with reasons, the possible causes of such vibration.

State the consequences of operating the engine under such vibratory conditions.

Describe the procedure you, as Second Engineer, would implement in order investigate and rectify the problem.

2011/SR9 2012/SR4 j f 2013/SR1 2013/SR09 2014/SR11 2015/SR04 2015/SR06

2017/SR03 2017/SR04 2017/SR07 2017/SR09 2018/SR03 2018/SR07 2018/SR11

2019/JUN

Q26.

What are the effects of following on the sluggishness of steering gear operations:

Air entrapped in hydraulic oil.

Worn pins and weak springs in hunting gear.

Shock valves leaking.

Q27.

With reference to Marine Diesel engines.

Describe how crankshaft alignment is checked.

Identify with reasons the causes of crankshaft misalignment.

State how the measurements are recorded.

Q28.

Question Sr 4, 1 2009

Your ship after having been accidentally grounded was taken to dry dock for inspection and necessary repairs

What defects would you look for in the following parts that may have sustained damage due to grounding and suggest method of repair that may be required to be carried out to the defects noticed

Propeller shaft and tail end shaft

Main engine crankshaft

2009/SR4 2008/SR7 f 2006/SR5 2006/SR1 2011/SR3 2010/SR10 2015/SR09 2015/SR12

2017/SR1 2017/SR06 2017/SR08 2018/SR04

Q29.

Write short note on the following.

Metal locking. TIG and MIG welding. Brazing. Soldering

Oct 2020

2007/SR08 2012/SR11 2014/SR02 2014/SR03 2014/SR12 2015/SR08 2016/SR02

2016/SR03 2016/SR06 2016/SR09 2016/SR10 2016/SR12 2017/SR10 2017/SR12

2018/SR01 2018/SR03 2018/SR04 2018/SR08 2019/JUN

Q30.

With regards to keeping the gas side of a boiler in good condition discuss each of the following The mechanism of combustion stating the factors which are important for good combustion Fuel oil treatment

Soot removal equipment.

2009/SR6 2008/SR7 2008/SR1 2007/EMG 2007/SR8 2006/SR7 2006/SR4

2006/SR1 2011/SR3 2010/SR10 2010/SR9 2010/SR6 2012/SR4 2012/SR8

2013/SR8 2014/SR01 2014/SR9 2014/SR12 2016/SR03 2016/SR10 2016/SR02

2016/SR06 2017/SR07 2017/SR12 2018/SR01 2018/SR03 2018/SR04 2018/SR08

2019/MAR

Q31.

Using sketches explain the difference between pulse and Constant Pressure turbocharger systems.

In the event of one of the Pulse turbocharger’s becoming inoperative due to mechanical breakdown explain the modifications required to allow the engine to operate safely.

State the instruction you as second Engineer would issue regarding the additional engine monitoring requirements following the steps taken in (a).

2015/SR09 2017/SR01 2018/SR04

Q32.

What is Rocking test of Deck Crane? Explain the procedure of rocking test. Tabulate and indicate fault finding procedure. What is the action taken if deviation is out of limit?

2018/SR09 2018/SR11 2019/JAN 2019/MAR

Q33.

Describe the procedure for replacing a Main Engine cylinder liner and explain using sketches where necessary, those parts, which require close attention during lifting of cylinder liner. Also describe the procedure for pressure testing the cooling water side of the Main Engine Cylinder head.

2019/JUN

Q34/2.

State the circumstances owing to which it may be necessary to renew a cylinder liner

Explain how the liner is removed

Explain how a new liner is fitted

State the important checks to be made after fitting

2010/SR01 2005/SR02 2012/SR01 2012/SR12 2013/SR01 2013/SR8 2013/SR10

2013/SR11 2014/SR01 2014/SR03 2014/SR11 2014/SR12 2015/SR01 2015/SR08

2015/SR11 2016/SR06 2016/SR12 2017/SR03 2017/SR10 2017/SR11 2017/SR12

2018/SR01 2018/SR09 2018/OCT 2019/JAN 2019/MAR 2019/APR

Q35.

Briefly describe your action plan on following exigencies:

Leaky economizer tube, while at sea

Leaky intercooler of main air compressor, while maneuvering

2008/SR9 2010/SR11 2010/SR8 2013/SR10 2014/SR10 2014SR11 2015/SR06

2016/SR11 2017/SR04 2017/SR07 2017/SR09 2018/SR03 2018/SR07 2018/DEC

2019/JAN 2019/JUN

Q36.

Question

If you have opened up a main sea-water circulating pump (centrifugal type) for survey or examination, describe the checks you would make, and state your conclusion regarding any faults found.

Q37.

Question Sr 1 JAN 2007

With reference to a recent ILO notice on the health hazards from asbestos

(a) State where asbestos may be found on board ship;

(b) State the health risk from asbestos;

(c) Outline the precautions necessary to minimize exposure to asbestos during an emergency repair.

Q38.

With reference to the exhaust gas boiler of your ship explain the following: A. Composition and reasons of soot deposits. B. Various stages of soot fire leading to high temperature fire. C. Procedure to be followed for firefighting under different stages of soot fire. D. Actions required prior to dry running of an exhaust gas boiler.

2019/OCT

Question 39

Describe the procedure to be under taken when upon a routing schedule for changing fuel injector on a main engine it is found that the injector body is seized and cannot be removed using conventional means

2007/SR01 2011/SR12 2012/SR1 2012/SR12 2013/SR1 2013/SR6 2013/SR8

2013/SR12 2015/SR01 2015/SR06 2015/SR08 2016/SR07 2016/SR09 2016/SR11

2016/SR12 2017/SR03/ 2017/SR04 2017/SR09 2017/SR10 2018/SR07 2018/SR11

2019/JAN 2019/FEB 2019/APR

Q 40

Question

With reference to main engine automatic slowdown and shutdown systems:

a)          List TWO shutdown and TWO slowdown parameters, stating why EACH is applied to an engine                     

b)          State how EACH of the shutdown and slowdown parameters listed is safely tested when the engine is operating                   

2018/SR07

2015/SR06 2016/SR11 2017/SR04 2017/SR09

Q 41.

Question

Describe briefly the method of carrying out a bend test and an impact test

Illustrate the general form of test piece used state how final result are given for comparison of different material of what practical use are the figure obtained

2018/DEC ^_

Q42.

State the regular routines carried out on the following system: A. CO2 Fixed fire-fighting system, B. Smoke detection system;

2009/SR6 2008/SR8 2007/SR9 2007/SR11 2011/SR6 2014/SR06 2018/DEC

Q 43.

Question      

 Describe the hull examination that should be carried out on a ship in dry dock. Making special reference to essential maintenance and repairs that can only be carried out in dry dock. 

Construct a list of the item in order of importance that are required to be surveyed in the dry dock

Q 44.

The tailshaft of your vessel is suspected to have been damaged in a recent grounding. Explain with sketches the type of Non-Destructive tests that you would carry out with reference to the specific parts of the shaft, to ascertain the damage.

2018/DEC

Q 45.

Question. 

The pipe work of the sea water circulation system for a passenger ship has to be completely renewed. The company contracted for the work has no previous experience of marine, installation.
You as the Second engineer have been requested to write the specification for manufacture and installation of the steel pipe.  

Outline your proposal for manufacture of the pipe.      

State the necessary requirements for approval.

Q 46.

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/SR2 2008/SR4 2006/SR4 2015/SR7 2018/DEC

Q 47.

Explain the procedures for dismantling a centrifugal purifier for survey:

Explain the key areas which would merit the surveyor's attention.

Explain the replacing of a set of thrust bearings for vertical shaft by correct identification.

2018/DEC

Q 48.

With reference to the Crosshead of Large two-stroke engines:

Explain how crosshead and guide shoe clearances are checked, in large 2 stroke engines

Explain how crosshead alignment is checked and adjusted.

2018/DEC

Q49.

Describe, with aid of sketches, a system of turbo-charging a two-stroke cycle main engine. State the routine attention, which should be given to the turbo-charger.

2018/SR08

Q50

During the cleaning & inspection oily bilge tank onboard your vessel;

As second engineer, explain the procedure involved in transferring the water, emptying out tank, without violating MARPOL Regulation.

List the precaution to be taken before entering and while cleaning the progress.

Explain what all checks to be carried out, before and after cleaning.

2018/SR11

Q51

What examinations must be carried out when a crosshead bearing of a large, slow-speed engine is opened up for survey?

2018/SR08

2018/SR11

Q52:

Describe how the following conditions are prevented in auxiliary boilers:

Feed contamination by oil from heating coil drains -

Internal corrosion's. C. Furnace blowback; D. Uptake fire.

2009/SR03 2008/SR11 2006/SR3 2005-6/EMG 2010/SR4 2010/SR3 2015/SR10

2015/SR11 2017/SR06 2017/SR11 2018/SR02 2018/OCT

Q53:

Outline the procedure for the inspection of the rudder in a dry dock,

B. What are the requirement with respect to steeling gear as per SOLAS 74, as amended for the following: i. Relief valve; ii. Steering gear control; iii. Electrical power circuit

2010/SR4 2006/SR3

2010/SR3

2012/SR09

2017/SR11

2018/OCT

Q54.

Discuss the advantages and disadvantages of adopting the following policies for maintenance of main and auxiliary diesel engines. A. Planned maintenance; B. Condition monitoring; C. Periodic replacement of components.

2009/SR07 2008/SR9 2008/SR1 2007/SR8 2007/SR3 2006/SR7 2006/SR5

2006/SR04 2010/SR09 2015/SR11 2015/SR15 2017/SR06 2017/SR08 2017/SR11

2018/OCT

Q55.

With reference to air receivers and bottles explain with reasons: A. Why regular systematic internal inspection is advisable? B. Which internal areas of large receivers should receive particularly close examination? C. How bottles are inspected internally and what parts should be closely examined? D. How the condition of a bottle or receiver that cannot be inspected internally is checked?

2009/SR6 2008/SR12 2008/SR8 2007/SR4 2007/SR2 2011/SR4 2010/SR4

2010/SR3 2010/SR1 2001/SR7 2009/SR1 2011/SR7 2011/SR11 2012/SR4

2012/SR6 2013/SR2 2013/SR3 2013/SR09 2012/SR6 2013/SR2 2013/SR3

2013/SR09 2014/SR4 2014/SR07 2014/SR08 2014/SR10 2015/SR02 2015/SR11

2016/SR08 2017/SR02 2017/SR06 2017/SR11 2018/OCT

Q56.

Describe the procedure for opening a bottom end bearing for inspection making reference to the positioning of the crank and the safety precautions to be observed. B. State how the bearing clearance may be checked and adjusted when necessary C. State TWO defects, which may be encountered during inspection of the bottom end bearing and crankpin giving possible causes of each. D. State TWO checks, which should be made before returning the engine to service following overhaul of the bottom end bearing.

2015/SR11 2017/SR06 2017/SR11 2018/OCT

Q57.

Describe the hull inspection that you would carry out as the senior engineer of ship in dry dock stating what defects you may find and the repairs that may be necessary with respect to;

A. Shell plating; B. Forward end of ship; C. Aft end of ship; D. Opening in shell plating; E. Rudder; F. Propeller and stem bush;

2010/SR2 | 2008/SR4 06-07/EM 2006/SR4 2006/SR2 2010/SR1 2011/SR7

2011/SR11 2013/SR02 2015/SR7 2015/SR11 2017/SR11 2018/OCT

Q58.

With reference to steering gear hydraulic systems:

Explain the factors that could contribute to failure of connecting flange leading to total loss of oil from the system;

Describe an arrangement designed to ensure that the problem would not cause steering failure.

2009/SR8/2015/SR11 2008/SR12 2008/SR11 2006/SR3 2010/SR9 2012/SR09 | 2015/SR03 2018/OCT

Q59.

Explain in detail how you would isolate CO2 Fixed fire fighting system foe routine maintenance. Please enumerate the Maintenance schedules and their frequency performed on this system. Describe all tests and inspections you would make and how you would return the system to service.

2018/SR08

Q60.

With reference to sea water cooled multi-tubular heat exchangers state: -

The materials used for the construction of tubes, tube plate and water boxes.

The various types of corrosion that the part in (a) are subjected to.

Measures employed to reduce or prevent above corrosion.

2018/SR08

Q61.

An auxiliary boiler water level control system has a differential pressure transmitter as the detecting element for water level.

Sketch and describe such an arrangement;

If the transmitter was damaged describe how a replacement unit would be calibrated

2013/SR12

2015/SR7 2018/SR08

Q62

Question 

Values of some main engine exhaust temperatures displayed in the engine control room differ from those displayed on the engine for the same cylinders.

i)            Explain how it may be determined which readings are inaccurate

ii)          State possible reasons for these inaccurate readings

iii)         Explain how the location of the faults may be detected 

b)           State the periodic checks which should be carried undertaken to ensure that remote engine Instrumentation is readings accurately

2015/SR06 2016/SR11 2017/SR04 2017/SR09 2018/SR07

Q63.

As second engineer describe the procedure involved in the complete inspection of a cylinder liner and piston assembly, indicating areas of significant interest. A. Explain with reasons, possible faults which might be found; B. Suggest how such faults might be avoided.

2012/SR7

2013/SR10

2015/SR06

2016/SR01

2016/SR11

2017/SR09

2018/SR07

Q64.

Under CSM bottom end bearing of a large 2stroke slow speed engine is due for survey A. As 2nd eng explain the procedure involved in complete inspection of a bottom end bearing; B. List the precaution to be taken; C. Indicate the reasons for possible defects which could be encountered and state how they may be rectified; D. What test are carried out on completion of survey and reassembly.

2009/SR8 2007/SR3 2010/SR1 2012/SR1 2012/SR12 ^ 2013/SR1 2013/SR10 2013/SR11

2014/SR01 2014/SR11 2014/SR12 2015/SR01 2015/SR03 2015/SR06 2015/SR08 2016/SR02

2016/SR06 2014/SR03 2016/SR11 2016/SR12 2017/SR03 2017/SR04 2017/SR09 2017/SR10

2017/SR12 2018/SR01 2018/SR06 2018/SR07

Q65.

During normal engine operation, a turbocharger rapidly loses speed and the speed reduction is accompanied by appreciable noise - A. State with reasons the possible causes; B. Explain in detail how the engine might be safely operated if the damage caused by this incident is such that the turbocharger cannot function; C. State with reasons the factors which may limit engine operating speed with the turbocharger out of operation

2011/SR9 2013/SR1 2013/SR7 f2013/SR10 2014/SR11 2015/SR06 2016/SR07 2016/SR11 2017/SR03

2017/SR04 2017/SR09 2018/SR07

Q66.

Explain how EACH of the following hull defects should be dealt with; A. A cracked weld; B. A severe indentation in way of a frame; C. Surfaces suffering from general corrosion although the extent of wastage does not warrant plate replacement; D. A bilge head fractured at the forward end.

2007/SR3 2012/SR1 2012/SR2 2012/SR12 2013/SR6 2014/SR01 2014/SR03 2014/SR12

2015/SR01 2015/SR08 2015/SR15 2016/SR02 2016/SR06 2016/SR09 2016/SR12 2017/SR06

2017/SR08 2017/SR10 2017/SR12 2018/SR01 2018/SR06

Q67.

With respect to hydraulic Ram steering gears, A. What emergency locking device can be used in order to speedily bring the steering gear to rest? State one reason the best angular position to lock the steering gear. B. Use a simple sketch to show where the Jumping (top) and wear down (bottom) rudder carrier ring clearances can be measured. Indicate what clearances you would expect with a new steering gear; C. State the consequences of the wear down clearances being reduced to less than zero.

2011/SR4 2010/SR4 2010/SR3 2010/SR2 \ 2012/SR1 2014/SR01 2014/SR03 2014/SR4

2014/SR12 2015/SR01 2015/SR08 2016/SR02 2016/SR06 2016/SR12 2017/SR07 2017/SR10

2017/SR12 2018/SR01 2018/SR06

Q68.

With reference to the circuit breaker for an a.c. generator A. Describe the preventive maintenance carried out on the circuit breaker for an A.C Generator. B. Explain the sequence of events that might occur if the breaker opens on a short circuit and state the check you would require following such event. C. Give a safe procedure to follow should a main circuit breaker fail to open under fault condition.

2009/SR7	2009/SR3	2008/SR6	£ 2007/SR5	2006/SR9	2006/SR01	2011/SR2	2010/SR6
2012/SR7	2012/SR8	2013/SR8	2013/SR11	2014/SR01	2014/SR12	2016/SR02	2016/SR06
2017/SR12	2018/SR01	2018/SR06

Q69.

With the aid of a simple sketch, explain the operation of a basic air-conditioning unit. B. With reference to your sketch, explain the following: - i. How the problem of increase in humidity on cooled air is overcome; ii. How discomfort caused by the excessive drying effect of heated air is overcome. C. Explain how a psychometric chart is used to check conditions.

2007/SR3 2012/SR1 f 2012/SR2 2012/SR12 2014/SR03 2014/SR12 2015/SR08 2016/SR09

2016/SR12 2017/SR06 2017/SR07 2017/SR08 2017/SR12 2018/SR01 2018/SR03 2018/SR06

Q70.

With reference to the insulation testing of marine electrical plant: - I. State the reasons for insulation testing; II. State the precautions to be observed when testing intrinsically safe equipment. B. Describe the overhaul of d.c. motor which has been subjected to excessively damp condition or flooding with seawater.

2008/SR9 2008/SR4 2008/SR3 2008/SR2 2007/SR9 2007/SR7 2007/SR4 2007/SR2

2006/SR8 2011/SR4 2010/SR9 2011/SR6 2008/SR7 2007/SR1 06-07/EM 2005/SR1

2005/SR9 2011/SR12 2012/SR4 2012/SR10 2012/SR11 2014/SR02 2014/SR03 * 2014/SR12

2015/SR03 2015/SR7 2015/SR08 2016/SR02 2016/SR03 2016/SR10 2016/SR12 2017/SR07

2017/SR10 2017/SR12 2018/SR01 2018/SR06

Q71.

In a situation where the main engine control system suddenly fails and it is not possible to rectify this immediately A. Explain the action that a 2nd engineer should take. B. State the instruction that the 2nd engineer should issue in order to ensure the continued safe and effective operation of the engine

2015/SR09 2017/SR01 2018/SR04

Q72.

Describe the action you would take and outline possible reasons for failure in both the following cases: (a) The engine fails to turn on starting air, (b) The engine turns on starting air but fails to fire.

2015/SR09 2017/SR01 2018/SR04

Q73.

A ship operating in the U.M.S. mode must have an automatic fire detection system for the machinery space. Sketch a line diagram of the system showing how shipboard mains supply is fed through battery charger and emergency battery to fire detector heads and fire zone indicator panel and alarms; In the event of a mains supply failure state the length of time for which the emergency battery should be capable of operating the system; Sketch and describe a method of monitoring the integrity of the system.

2012/SR8 2015/SR09 2017/SR01 2018/SR04

Q74

What are the checks carried out on an anchor chain during dry-docking? Suggest possible repairs for identified defects.

2018/SR03

Q75.

Under Continuous Survey of Machinery, the main bearing of a large slow speed engine is due for survey.

A. Explain the procedure involved in the inspection of a main bearing;

B. List the precaution to be taken;

C. Indicate the reasons for possible defects which could be encountered and state how they may be rectified;

D. What test are carried out on completion of survey and reassembly.

2018/SR03

Q76.

Accidents regularly occur due to premature or accidental release of Co2 into machinery spaces W.R.T. this enumerate the procedure or arrangement that you as 2nd engineer would adopt W.R.T the following; A. Contractors working on Co 2 system; B. Understanding between bridge and engine room in the event of a machinery space fire; C. Familiarizing staff with the system; D. What checks and test would you carry out before putting system in operation?

2011/SR4 2007/SR3 2010/SR1 2012/SR1 2012/SR2 201 3/SR1 2013/SR8 2014/SR4 2014/SR11

2017/SR07 2018/SR03

Q77.

With reference to lifeboats, Sketch and describe: A. The handbrake used for lowering and state how it may be tested. B. The centrifugal brake and state the method of testing. C. A roller ratchet and the method of testing; D. Explain why the ratchet is incorporated into the system;

2016/SR8 2017/SR02 2017/SR6 2017/SR08

2018/SR3

Q78.

Write a report to your Engineer Superintendent describing a breakdown of the main refrigerating plant for cargo or ship provision giving reasons for the breakdown, the method of repair and the action taken to prevent a recurrence.

2008/SR9 2005-2006/EMG 2010/SR2 2014/SR12 2014/SR10 2015/SR10 2018/SR02

Q79.

A. Describe the events leading to a crankcase explosion; B. State how overheating might be indicated other than by a mist detector; C. State how severity of a crankcase explosion is limited. D. Emission of flame has in the past caused severe burns to personnel present during a crankcase explosion. Despite the addition of flame traps. Discuss the procedure in the invent of overheating being indicated.

2009/SR3	2008/SR11	2006/SR3	2005-6/EMG	2010/SR4	2010/SR3	2012/SR09	2015/SR04
2015/SR10	2016/SR08	2018/SR02

Q80.

What are the routine maintenance carried out to an a.c. motor; and- A. Explain the meaning of single phasing in a.c. machinery; B. State the dangers associated with single phasing and enumerate the protective normally fitted to counteract such dangers.

2009/SR8 2008/SR8 2006/SR3 2005-6/EMG/2012/SR8 2015/SR10 2018/SR02

Q81.

With reference to the main gearing and gearbox, state with reasons: (a) Why the first examination after commissioning is of special importance. (b) What part would receive the closets scrutiny and what defects might possible be found. (c) The gearing faults that are likely to develop early in the life of the vessel.

2015/SR10 2018/SR02

Q82.

Briefly explain the term fatigue and explain how fatigue failure occur; State the difference between high stress / low cycle and low stress / high cycle; State how defect in metal can influence the expected safe life of a component; State how fuel timing and cylinder power balance can influence the possibility of fatigue cracks developing in the bedplate.

2015/SR10 2016/SR08 2017/SR02 2018/SR02

Q83.

What is understood by risk on board ship? As a 2nd engineer discuss various methods for hazard identification and assessment of risk available on board.

Q84.

Sketch and describe a system of control for manoeuvring a main diesel engine from the bridge and show how local control may be effected in case of breakdown of the system.

2011/SR10 2011/SR3 2012/SR12 2015/SR10 2015/SR12 2017/SR08

Q85:

With reference to medium speed diesel engines describe how as a second engineer officer would you carry out each of the following: A. Check engine performance during operation B. Establish the condition of the lubricating oil. C. Monitor the general condition of the engine during voyage.

2010/SR6/2010/SR6 2015/SR12/2017/SR08

Q86.

A single forged shaft for a small gear pump is broken in the middle

Suggest some emergency repairs to the shaft to enable run the pump

Q87

Discuss on the classification society requirements with regard to maintenance continuous survey of machinery.

Oct 2020

Question

An auxiliary boiler is periodically unattended & equipped with alarms to cover low water level, high steam pressure, and air & flame failure.

a) State why & how fuel to the burners is automatically cut off under alarm conditions of the water level, steam pressure, air & flame failure.

b) Describe how & when each of the above alarms is tested without damaging the boiler.

Oct 2020