Test online for seamans about Deck department, Management level, Bulk Carrier (CES v6.0)
Test results
The test consisted of 80 random questions.
Total questions on this topic: 110
Total questions on this topic: 110
Your result: 54%
Right answers:
1
A compressed air supply system has two automatically controlled air compressors. When demand is high both compressors are needed to meet the delivery requirements. What is the best method for controlling the compressors to meet a varying, but intermittent demand?
Your answer is correct:
Sequential start initiated by pressure switches set at different switching pressures.2
Which of the following symptoms would indicate that the filter drier in a refrigeration circuit has become blocked?
Your answer is correct:
A large temperature drop across the drier.3
When planning bunkering operations it is preferable to arrange for the new fuel to be bunkered into empty or nearly empty tanks whenever possible. What is the main reason for this?
Your answer is correct:
To minimise the risk of incompatibility between different fuels.4
Which one of the following items has to be included in an abandon ship drill according to SOLAS regulations?
Correct answer:
Checking that life-jackets are correctly donned.Your Answer:
Launching and recovery of a survival craft.5
According to the industry guidelines in the ISGOTT Guide and assuming terminal regulations do not require otherwise, what action should be taken to drain accumulated water from the deck during cargo handling operations in rainy conditions?
Correct answer:
The accumulated water is to be drained periodically and the scupper plugs to be immediately closed once the water has been run off. Water containing oily residues is to be transferred to a slop tank or other suitable receptacle.Your Answer:
The accumulated water is to be transferred to a spare tank.6
Which of the following terms is used to describe a thermodynamic process in which no heat transfer into or out of the system occurs?
Correct answer:
Adiabatic.Your Answer:
Isothermal.7
The main propulsion diesel engine is normally started by direct admission of compressed air. Which one of the following statements is correct?
Correct answer:
Percentage of available flow.Your Answer:
Percentage of maximum pressure being used.8
What is a steering wheel?
Your answer is correct:
A helm used to steer the ship.9
What is the main precaution to be taken prior to engaging the turning gear for a diesel engine?
Your answer is correct:
Isolate the starting air supply.10
What are we seeing here?
Your answer is correct:
A sailing vessel less than 20 metres in length, displaying the optional combined lantern in lieu of standard sailing lights, seen head on.11
Cargo gear/cranes should at regular intervals be thoroughly examined and load tested by a recognised company/yard. How often should such examination/load test take place?
Your answer is correct:
Every 5th year.12
What do you understand by the term Maximum Continuous Rating, MCR, of a diesel engine?
Correct answer:
The maximum load that the engine can operate at continuously.Your Answer:
The maximum cylinder pressure that the engine can operate at continuously.13
When trying to reverse a large slow speed diesel engine in the astern direction it cannot be turned on air even though it will start in the ahead direction. What is the likely cause of this problem?
Your answer is correct:
The start is blocked because the air distributor has not moved to the astern position.14
What is the correct name of the tool shown in the sketch?
Correct answer:
Flat file.Your Answer:
Chisel.15
The cold room temperature is almost at the cut out point in a vapour-compression refrigeration system. What should the refrigerant state be just after the evaporator if the system is correctly set up?
Your answer is correct:
Slightly superheated low pressure gas.16
Maintenance is to be carried out on a diesel engine. How long after stopping the engine should the cooling water and lubricating oil be kept circulating in order to avoid any undue thermal stress from residual heat?
Your answer is correct:
At least one hour.17
What effect would turbulent fluid flow through a heat exchanger have on the efficiency of the heat transfer?
Your answer is correct:
Turbulent fluid flow generally increases heat transfer efficiency.18
Give the meaning of the following symbol:
Correct answer:
Start water-spray.Your Answer:
Rescue boat with waterproof canopy.19
The main engine is running steady with an average exhaust gas temperature of approximately 350 °C. What would be a typical alarm/slow down setting for the cylinder exhaust gas temperature deviation from the average?
Correct answer:
+/- 50 °C.Your Answer:
+/- 30 °C.20
The water cooling space on a turbocharger is damaged and there is no spare casing. The cooling water must be shut off. Which option would you take to keep the risk of further damage to a minimum?
Correct answer:
Dismantle the rotor and assemble the sealing plates.Your Answer:
Make no modifications, but tell the duty engineer to pay special attention for abnormalities.21
There are many types of pumps fitted onboard ship which an engine room rating may be required to assist with the maintenance of. Which type of pump is shown in the illustration?
Your answer is correct:
A centrifugal pump.22
A vessel which normally operates with the engine room in UMS mode is unable to do so because of defects to some of the critical alarm functions. What are the main considerations that the Chief Engineer must take into account when planning alternative arrangements to cover the engine room requirements until the defects are cleared?
Correct answer:
A work rota is established to ensure full coverage of engine room watchkeeping duties and adequate rest periods for the engineering staff.Your Answer:
A work rota is established to ensure at least one person is in the engine room at all times while the defects exist.23
A vessel is scheduled to enter a SECA during a forthcoming voyage? What additional considerations must a Chief Engineer take into account when planning for this voyage?
Your answer is correct:
The availability of low sulphur fuel and the change over time required to ensure the system is clear of normal fuel prior to entry into the SECA.24
The image shows an indicator diagram taken from a diesel engine cylinder. Which of the following options is the action most likely to identify the fault?
Correct answer:
Check if the fuel pump injection is too early, or fuel pump lead is too great, for that cylinder.Your Answer:
Check that the fuel temperature and viscosity are correct.25
What is the required pressure when testing parts of the oil transfer system (hoses, loading arms etc.) if the test is to satisfy US Coast Guard regulations?
Your answer is correct:
Test pressure equal to 1,5 times the maximum allowable working pressure.26
How is the prime mover load normally kept to a minimum when starting up an electric driven reciprocating type air compressor?
Your answer is correct:
By using an unloading device to keep the compressor suction valves open until the machine is up to speed.27
Which is the “Fairlead”, in the figure?
Your answer is correct:
The Fairlead is indicated by C, in the figure.28
What is the purpose of the air distributor in a diesel engine air start system?
Correct answer:
To ensure the cylinder air start valves operate in the correct sequence and for the correct period.Your Answer:
To ensure that the automatic valve in the air start system opens and closes at the correct time.29
Many large, slow speed diesel engines have direct oil cooling of the piston crowns provided. An automatic slow down and alarm are sometimes fitted to protect against failure of this system. Which parameter is usually used to initiate this slow down?
Your answer is correct:
Low flow or no flow in the cooling oil return line.30
When lashing general cargoes why are short lashings preferred to long ones?
Correct answer:
Because they are more easily tightened and held in tension.Your Answer:
Because the safe working load of lashing materials decrease with length.31
What types of fire extinguishers shall be used in the engine room?
Your answer is correct:
Fire extinguishers equipped for powder or CO2 only.32
Most fuel oil separators working on the centrifuge principle have an automatic start up and sludging facility. Which of the following actions would you expect to occur first during the start up sequence?
Correct answer:
Ensure that condensate drains from the water separator are monitored and operating correctly.Your Answer:
Reduce the engine load to minimise condensate from the air cooler.33
What is the colour of the smoke signal used by life-saving stations or rescue units indicating that distress signals are observed in daylight?
Your answer is correct:
Orange.34
What does the term “stoichiometric mixture” mean when used in relation to combustion of hydrocarbon fuels?
Correct answer:
An ideal mixture of fuel and air in which all of the fuel and oxygen in the mixture are consumed during combustion.Your Answer:
A ideal mixture of fuel and air in which all of the fuel in the mixture is consumed during combustion.35
A water heating system with automatic temperature control uses steam as the heating medium and the temperature is controlled by a pneumatically operated valve? What would be an acceptable start up procedure of the system from cold state?
Your answer is correct:
Start the system up in manual mode and gradually increase the controller output signal until the temperature reaches the required value before changing over to automatic control.36
In the event of a diesel engine crankcase explosion which of the safety devices fitted to the engine is designed to minimise the risk of a secondary explosion?
Correct answer:
Crankcase relief valves/doors.Your Answer:
Main bearing temperature monitoring equipment.37
A combustible gas indicator of the catalytic filament type is used to check the atmosphere in an enclosed space onboard ship. When taking readings in a fuel tank which has been emptied for cleaning the meter reading initially rises and then falls back to zero. What is the likely defect, if any, in the instrument when this type of behaviour is displayed?
Correct answer:
The filament is contaminated due to too high a concentration of hydrocarbons.Your Answer:
The sampling pump is faulty.38
What contributes most to rust formation on vehicles/Ro-Ro units?
Your answer is correct:
Cargo hold ventilation systems and associated ducting.39
What is understood by the term “take the helm”?
Your answer is correct:
Take over the steering of the ship.40
Which ideal heat engine cycle is the vapour-compression refrigeration system based on?
Correct answer:
The reversed Carnot cycle.Your Answer:
The Dual cycle.41
Falls used in launching shall be turned end for end at an interval of not more than X months and to be renewed not later than every Y years, where the intervals are:
Your answer is correct:
30 months/5 years.42
What is the minimum furnace temperature that must be reached during start up before waste material can be introduced into an incinerator?
Your answer is correct:
850 °C.43
Which one of the options given is the most likely cause of a diesel engine failing to turn on air when the start signal is initiated?
Correct answer:
An interlock or blocking device in the remote starting system is operating.Your Answer:
Start air compressor has cut out due to sufficient pressure in system.44
On a container vessel, where should a mid-bay guide be positioned?
Your answer is correct:
On the tank top mid-way in 40′ guides to prevent transverse movement of 20′ containers.45
When bunkering through the port side of the bunker manifold what action should be taken with the valves on the starboard side of the manifold prior to bunkering operations commencing?
Your answer is correct:
Blank flanges should be fitted to the closed starboard side manifold valves.46
Telephones are being used to communicate between personnel onboard and ashore during a bunkering operation. What instruction would you give to ship personnel regarding action to take in the event of failure of the telephone communication during the operation?
Your answer is correct:
Stop the bunkering until alternative reliable communications are established.47
For a ship operating or calling in US waters, COTP can request (OPA-90)?
Correct answer:
Unannounced drills at any time.Your Answer:
Participation in all announced drills.48
In which way may intake of poisonous material occur?
Correct answer:
All mentioned.Your Answer:
By inhalation.49
A 3-phase cage rotor induction motor requires protection by a time delay overload trip. What is the reason for this?
Your answer is correct:
It will allow for inrush current or motor specific faults.50
When starting up an aerobic type sewage unit for the first time, of after manual cleaning, how should the bacterial process be initiated?
Correct answer:
By adding an activating agent to the inflowing sewage.Your Answer:
By filling the unit with sewage and bubbling air through it for 48 hours prior to starting the discharge pump.51
A diesel engine is operating with retarded fuel timing resulting in increased exhaust gas temperatures. How would you expect this to affect the turbocharger?
Correct answer:
Increased turbocharger revolutions.Your Answer:
The turbocharger would operate normally.52
Which of the given options characterizes a 2-stroke diesel engine?
Your answer is correct:
A 2-stroke engine completes a full cycle every revolution.53
During mooring operations which is the safe place to be in?
Correct answer:
Outside the colored zone.Your Answer:
Where ever you feel safe.54
Which of the following options would be a typical differential pressure setting for a main engine slow down in the event of jacket cooling water system low flow?
Correct answer:
0,2 to 0,5 bar.Your Answer:
10 bar.55
Spray painting has been carried out in the engine room while the engine was running, and the turbocharger intake filter was not protected. Which one of the options given is most likely to result from this?
Correct answer:
Scavenge air pressure lower than normal.Your Answer:
The revolution of the turbocharger lower than normal.56
How long after starting a refrigeration compressor should the oil separator return valve be opened?
Your answer is correct:
It should be opened once the oil separator unit has warmed up.57
The engine turns over normally when starting air is supplied but does not fire even though normal starting rpm is achieved. What could be the probable cause to this?
Correct answer:
Air in the fuel oil system.Your Answer:
The turbocharger has not run up to normal full speed.58
What would the results of a TAN test, carried out on lubricating oil samples from a diesel engine, indicate?
Your answer is correct:
A measure of the organic and inorganic acids in the lubricating oil.59
Some fuel oil and lubricating oil separators have a facility to control the back pressure of the clean oil outlet during start up and operation. What is the purpose of this control function?
Correct answer:
To help to maintain the oil/water interface at the correct position.Your Answer:
To control the amount of fuel passing through the separator.60
In the case when the temperature of the ambient air is equal to 10 °C and the wind is blowing at a speed of 10 m/sec the shipwrecked person must consider that the effect of air on his body is equivalent to that of an air whose temperature would be approximately:
Correct answer:
0 °C.Your Answer:
+10 °C.61
The critical part of any bunkering operation may be considered to be when topping off the tanks at which stage the risk of overflow and spillage of fuel oil is greatest. What is the correct safe procedure to adopt to minimise this risk?
Your answer is correct:
Reduce the bunker delivery flow rate and top off the tanks one at a time.62
The turbocharger on a diesel engine is surging. Which one of the following options would be the most likely cause?
Your answer is correct:
Dirty scavenging air cooler on the air side.63
When will a ro-ro vessel pitch heavily?
Your answer is correct:
When wave lengths are equal to the ship’s length.64
The circuit consists of two inductors, L(1) = 6 H and L(2) = 12 H, connected in parallel. Calculate the equivalent L(S) of the two inductors:
Correct answer:
L(S) = 4 H.Your Answer:
L(S) = 1,5 H.65
How will continuous low load operation influence the time between overhauls, tbo, for the cylinder covers and associated valves of a 4-stroke diesel engine?
Your answer is correct:
Reduce the time between overhauls due to increased fouling.66
To make a “call-request” one should:
Your answer is correct:
Select the telex in on-line position.67
You have to choose one of the following instruments for measuring pressure in an air bottle in measuring range 0-35 BAR. Which instrument would you install?
Correct answer:
Bourdon Tube manometer.Your Answer:
Bellow type manometer.68
During crude oil washing of No: 1C tank the duty deck officer reports that the oxygen reading in the tank is 9 %. What should you do?
Your answer is correct:
Stop the washing process and not resume until the oxygen content in the tank below 8 %.69
How many rescue boats should be provided on ro-ro passenger ships of 500 gross tons and above?
Correct answer:
Two, and at least one of the rescue boats shall be a Fast Rescue Boat.Your Answer:
One Fast Rescue Boat.70
In a smoke filled alleyway where will the cleanest air be found, and how should you proceed out?
Your answer is correct:
Near to the deck, crawl out keeping your face as near to the deck as possible.71
Which statement about the use of profiling onboard a ship is true?
Correct answer:
A random selection process must be established.Your Answer:
Detection equipment can be used in place of profiling.72
Prior to the lunch break, the Engineer on Duty observes that the operating generator set has an output of 90 %. With regard to operation of the generator, what is the – most important – assumption(s) for him to check before switching to UMS-mode?
Your answer is correct:
That a secondary auxiliary set is switched to automatic standby mode.73
How often should the lifeboat wire falls be turned and renewed?
Your answer is correct:
Turned at intervals of not more than 30 months and renewed every 5 years.74
What should be the status of the suction and discharge valves when starting a centrifugal pump?
Your answer is correct:
Suction valve open and discharge valve closed.75
How is the prime mover load normally kept to a minimum when starting up an electric driven reciprocating type air compressor?
Correct answer:
By using an unloading device to keep the compressor suction valves open until the machine is up to speed.Your Answer:
By using an unloading device to keep the compressor delivery valves open until the machine is up to speed.76
Which one of the listed requirements regarding fire protected lifeboats do not correspond to present regulations? Water spray systems shall:
Correct answer:
Have separate draining pumps of sufficient capacity.Your Answer:
Protect the occupants through a continuous oil fire for a period of not less than 8 minutes.77
This circuit consists of two resistances, R1 = 6 ohm and R2 = 12 ohm, connected in series. Calculate the equivalent resistance R(S) of the two resistances.
Your answer is correct:
R(S) = 18 ohm.78
Which ideal heat engine cycle is the vapour-compression refrigeration system based on?
Correct answer:
The reversed Carnot cycle.Your Answer:
The Dual cycle.79
Maintenance is to be carried out on a diesel engine. How long after stopping the engine should the cooling water and lubricating oil be kept circulating in order to avoid any undue thermal stress from residual heat?
Correct answer:
At least one hour.Your Answer:
At least 8 hours.80