Welcome to the website where you can pass online the CES CBT CD-0017 test on the subject «Steering Gear Operation». Practice like this will help you as a marine specialist improve your knowledge with the help of online studying and appraisal practice. CES based on practical information and marine specialists experience.
CES tests developed for evaluating seaman basic knowledge by Seagull Company (rebranded as «OTG»), is an evaluating online-tool, used for revealing any professional preparation needed in specific fields of knowledge, defined by STCW.
CES tests have proven themselves as good tools for the selection and recruitment process, as well as advancing the level of knowledge of the current officers and crew. Ocean Technologies Group use various subjects for question creation, which includes:
- Crowd and Crisis Management;
- Integrated Navigation System (INS);
- Ballast water management;
- Handling and Stowage;
- Vessel operation management and safety;
- Marine engineering;
- Maintenance and repair, etc.
Current test contains Seagull CES questions on the subject «Steering Gear Operation». Those questions can be used for competence verification specialist capable of preventing accidental situations related with transporting safety, or also for self-examination.
«Steering Gear Operation» subject includes theoretical and practical information about advanced training for work on any type of vessel.
On this site Crew Evaluation System Test on the subject «Steering Gear Operation» contains 33 questions you need to answer with no possibility to go back to previous question. Therefore, we recommend carefully reading each question and making decision with no hurry. In case you have some difficulty answering, you have also possibility to request a hint.
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Amount of questions: 33.
Right answers marked with this sign .
According to SOLAS, what special steering gear requirement must tankers above 10 000 tonnes meet that other ships do not require?
There must be oil leak detection, and steering capability must be regained within 45 seconds following the loss of one power actuating system.
Steering capability must be regained within 60 seconds following an oil leak.
There must always be full duplication of components up to the rudder stock.
There must be two or more identical power units.
According to the SOLAS rules the steering gear should be capable of being recharged with hydraulic oil from a fixed storage tank. What is the main reason for this?
To ensure that the steering gear can be rapidly recharged with clean hydraulic oil in the event of a leak from the system.
Because a steady leakage of oil is to be expected from some steering gears and having a fixed storage tank reduces the time taken for topping up.
To cut down the fire risk and reduce the risk of spillages.
To ensure that the correct grade of oil is always used.
According to the SOLAS rules, when must ships fitted with more than one steering gear power unit have at least two of these units running?
In all cases, in areas where navigation demands special caution.
In areas where navigation demands special caution, unless each individual power unit can perform as a main steering gear.
In areas where navigation demands special caution, unless the system is arranged to change over automatically within 45 seconds of a failure to either power unit.
When entering or leaving port, or at the discretion of the Master.
For an electro-hydraulic steering gear, if the stand by pump fails to start following a failure of the running pump, which one of the following best describes the likely cause?
The pump has not been set to standby or its power supply has been switched off.
The starting current has caused overload.
There has been a significant loss of hydraulic fluid.
There is a valve shut somewhere in the system.
For an electro-hydraulic steering gear, if there is a lot of movement of the wheel in hand steering mode before the steering gear responds, which one of the following best describes the likely causes?
Air in the hydraulic control system.
Excessive wear in the hydraulic pumps.
Loss of one phase of the electrical supply to the pump motor.
Overheating of the hydraulic fluid.
If there are no alarms, but the ship stops responding correctly to helm orders, which one of the following best describes the likely causes?
A failure in the remote rudder angle indication system.
A leaking safety valve.
An electrical power failure in the control system.
An electrical power failure in the power actuating system.
In the event of an oil leak on a steering gear fitted with an automatic change-over system, at what point should the system be automatically split into two?
When a main low level alarm operates on either hydraulic oil tank.
At the same time as one of the pumps is automatically stopped.
The system will be split into two in the event of any alarm sounding.
When the final low level alarm on either hydraulic oil tank operates.
Requirements for steering gears are given in which one of the following publications?
SOLAS.
COLREG.
ISM Code.
MARPOL.
The steering mode in which the rudder angle is pre-set manually and kept in position automatically, is called?
Follow up mode.
Auto pilot mode.
Hand steering mode.
Non follow up mode.
What is the most likely cause of the hydraulic lock alarm occurring on a steering gear system?
A failure in the control system such as a directional valve sticking open.
A failure of one of the hydraulic pumps.
Failing to purge the system of air.
Having both hydraulic pumps running at the same time.
What special requirement for steering gears is applied to any ship over 70 000 tonnes?
The main steering gear must have two or more identical power units.
One of the steering gear motors must be supplied from the emergency switchboard.
There must be automatic change-over in the event of hydraulic leakage.
There must be oil leakage detection.
What types of valves are actuated in order to move the rudder when local steering is being carried out?
Directional valves.
Local connecting valves.
One way valves.
Safety valves.
When a heavy sea strikes the rudder, which one of these statements best describes what will happen?
If the force is large enough, the hydraulic pressure in the steering gear will be high enough to operate the safety valve, and the rudder will move.
The rudder is free to move, but the auto-pilot will bring the ship back on course.
The rudder is hydraulically locked in position and will not move.
The shape and lightweight design of the rudder means that wave forces have no effect.
Where a steering gear is fitted with oil leak detection what would be the first alarm in the event of loss of oil?
Low level alarm in the hydraulic fluid tank.
Hydraulic system power failure.
Hydraulic system separation.
Low level alarm in the hydraulic fluid tank together with stand by pump auto-start.
Where are remote rudder angle indicators usually fitted?
At the bridge steering console and on the bridge wings.
At the bridge steering console only.
In the cargo control room.
In the steering gear compartment only.
Where is the changeover to local steering carried out?
The steering compartment.
The bridge.
The engine control room or the bridge.
The steering compartment, but it must be acknowledged by the bridge before it can take effect.
Which is the only one of the following NOT known to have caused moisture to have contaminated the hydraulic oil used for the steering gear?
A leaking rudderstock gland.
Air in the hydraulic control system containing moisture.
Oil for topping up stored in open containers in the steering compartment.
Water collecting on top of hydraulic oil drums stored on deck.
Which is the only one of the following that is NOT likely to cause overheating of a hydraulic steering gear?
Leakage of hydraulic fluid.
Air in the main hydraulic system.
High ambient temperatures and blocked oil coolers.
Pumps running on load for long periods of time.
Which of the following statements best describes the importance of the purity of the hydraulic oil used in steering gear?
Even small solid particles will cause wear, whilst moisture will cause corrosion.
Provided the oil remains incompressible, the steering gear will continue to work correctly.
Provided the oil viscosity remains within acceptable limits, the steering gear will continue to work correctly.
Steering gear power actuators are very robust and therefore a degree of oil contamination can be tolerated.
Which one of the following is NOT caused by air in a steering gear hydraulic system?
Rudder tends to return to mid-ships.
Corrosion.
Erratic movement of the rudder.
Overheating.
Which one of the following statements about steering gear is NOT correct?
A main steering gear must be able to move the rudder from 30° on either side to 30° on the other side in less than 28 seconds.
A main steering gear must be able to move the rudder from 35° on either side to 35° on the other side.
An auxiliary steering gear must be able to move the rudder from 15° on either side to 15° on the other side.
Ships with more than one rudder do not need an auxiliary steering gear if they are navigable with one rudder.
Which one of the following statements best describes the actions would you take if there is a leak of hydraulic fluid from a steering gear which does not have an automatic change-over system?
Isolate the leaking part of the steering gear by following the procedures on the emergency steering instructions.
Immediately switch off all power units.
Immediately switch over to another power unit.
Top up the system oil until repairs can be made.
Which one of the following statements best describes the arrangement of steering gear alarms?
Steering gear alarms can only be acknowledged on the bridge, but are indicated elsewhere.
Steering gear alarms are only indicated and acknowledged in the steering compartment.
Steering gear alarms are only indicated and acknowledged on the bridge.
Steering gear alarms can be acknowledged on the bridge, or elsewhere.
Which one of the following statements best describes the checks carried out during emergency steering drills?
All emergency arrangements must be tested including operation from the steering compartment and communication with the bridge.
Checks previously carried out prior to leaving port do not need to be repeated, but hand steering from the bridge must be carried out.
In addition to the checks carried out prior to leaving port, hand steering from the bridge must be tested.
The checks carried out are the same as those required prior to leaving port, but are more realistic because the ship is moving through the water.
Which one of the following statements gives one of the steering gear requirements for passenger ships?
Each power unit must be capable of moving the rudder from 35° on either side to 30° on the other side in not more than 28 seconds.
The requirements for each steering gear remains the same, even if there is more than one rudder.
There must be two identical power units which together can move the rudder from 35° on either side to 30° on the other side in not more than 28 seconds.
There must be oil leakage detection fitted.
Which one of the phrase given in the options most accurately completes the following statement? A leaking safety valve on a hydraulic steering system is most likely to cause which one of the following:
Slow rudder movement.
A time delay before the rudder first starts to move.
Excessive hydraulic oil consumption.
Leakage of oil into drip trays in the steering flat.
Which one of the phrase given in the options most accurately completes the following statement? According to the SOLAS rules, if a ship has more than one rudder and can be manoeuvred with only one rudder, then:
Only one main steering gear needs to be fitted to each rudder.
An additional main or auxiliary steering gear is only required on each rudder for passenger ships of over 70 000 tonnes.
An additional main or auxiliary steering gear is only required on each rudder for tankers, chemical tankers and gas carriers above 10 000 tonnes.
Each rudder must be fitted with a main and auxiliary steering gear.
Which one of the phrase given in the options most accurately completes the following statement? The safety valve on a steering gear hydraulic system is most likely to operate because:
A heavy sea has hit the rudder.
An attempt has been made to put too much helm on, too quickly.
It has been opened as part of the normal operation of the steering gear.
The output pressure from the hydraulic pumps is too high.
Which one of the phrase given in the options most accurately completes the following statement? The ships steering gear must normally be checked and tested by the ship’s crew:
Within 12 hours before departure.
Within 24 hours before departure.
Within 48 hours before departure.
Within 72 hours before departure.
Which one of these statements about rudder carrier bearings is true?
A separate rudder carrier bearing is only required on ram type steering gears.
A rudder carrier bearing is not required on rotary vane type steering gears.
A rudder carrier bearing is only required on ram type steering gears.
A rudder carrier bearing is only required on rotary vane type steering gears.
Which one of these statements about the force developed by a hydraulic system is true?
Force equals pressure times area.
Force equals pressure divided by area.
Force equals pressure plus area.
Pressure equals force times area.
Which one of these statements about types of steering gear is true?
Higher pressures are needed for the ram type.
A greater angle of possible rudder movement is available with ram type steering gears.
Higher pressures are needed for the rotary vane type.
The ram type takes up less space than the rotary vane type.
Which one of these statements best describes the effect of using two steering gear hydraulic pumps instead of one?
The speed of rudder movement is greatly increased.
The force on the rudder is greatly increased.
The speed of rudder movement and the force on the rudder are greatly increased.
There is little effect on the speed of movement or the force on the rudder, but reliability is increased.
