CES CBT Test and Answers on TOTS 1B-Maintenance and Repair

Welcome to the website where you can pass online the CES CBT CD-7025 test on the subject «TOTS 1B-Maintenance and Repair». 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 «TOTS 1B-Maintenance and Repair». Those questions can be used for competence verification specialist capable of preventing accidental situations related with transporting safety, or also for self-examination.

«TOTS 1B-Electrical, Electronic and Operations» subject includes theoretical and practical information about advanced training for work on any type of vessel. The course delivers in-depth knowledge of electrical and electronic systems found aboard various types of vessels. The test offers advanced training for individuals seeking to work on a wide range of vessel types in the maritime industry. This comprehensive program combines exercises, ensuring a well-rounded understanding of the subject matter. A core focus of the test is on delivering in-depth knowledge of the electrical and electronic systems commonly found aboard various types of ships. Participants gain proficiency in understanding the principles, operation and maintenance of these complex systems, including power generation, distribution and control mechanisms. The component of the course likely covers the practical application of electrical and electronic systems in a shipboard environment, emphasizing safe and efficient practices. Sailors learn to troubleshoot common issues, perform routine maintenance tasks and interpret technical documentation related to these vital systems. By covering a broad spectrum of vessel types, the course ensures that participants are prepared to work on diverse maritime platforms, enhancing their employability. Successfully completing the test demonstrates a high level of competence in marine electrical and electronic systems, opening up valuable career opportunities in the maritime sector.

On this site Crew Evaluation System Test on the subject «TOTS 1B-Maintenance and Repair» contains 56 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: 56.

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After the overhaul of a main bearing and after crankcase inspection, what needs to be done first before manoeuvring with the engine?

Blow through engine using Local/Manual control.

Blow through the engine from Control room to test controls.

Turn the engine on turning gear with the lub oil pump running.

Turn the engine on turning gear.

An increase in main engine crankshaft deflection readings may be an indication of …

Excessive wear of main bearing shells.

Excessive torsional stress.

Excessive wear of thrust bearings.

Excessive weight of piston and connecting rod.

Crankshaft deflections are normally taken when the engine is …

At any temperature.

Cold.

Hot.

Either hot or cold.

During routine rounds of the main engine, you note that the pipe leading to one of the air start valves is hot. Do you?

Contact the bridge and request permission to stop immediately.

Advise the watch keepers to monitor it and report if the temperature increases.

Apply portable ventilators to cool the pipe down.

Attach a portable temperature gauge to record the temperature.

Excessive crankshaft deflections are taken as an indication of …

An engine misalignment or worn main bearings.

A bent crank shaft.

Only an engine misalignment.

Only worn main bearings.

For accurate readings the deflection gauge should be …

At a higher temperature than the engine.

At the same temperature as the engine.

At a lower temperature than the engine.

At room temperature.

How often would you normally expect to carry out water washing of the exhaust gas economiser?

Once a year.

Once every 6 months.

Once a month.

Once every two years.

How will you ensure the fire fighting and life saving equipment in the Engine room are in readiness?

By regular inspection, testing and maintenance.

By conducting drills every 3 months.

By servicing and Certification annually.

By servicing and Certification during dry docking.

If preventive maintenance work on critical equipment is overdue, what is the accepted course of action to proceed with this work?

Carry it out before completing other items whose overhaul is due at the same time.

Carry out a Risk Assessment and discuss maintenance options before making decision.

Carry on and schedule the work at the next port of call.

This has to be carried out immediately, even if it involves stopping the ship.

In a large 2 stroke diesel engine, which bearing half takes the highest loading?

Crosshead bearing lower half.

Connecting rod bearing lower half.

Main bearing upper half.

The crosshead bearing upper half.

In a large slow speed diesel engine, which of the following would you expect to be directly cooled by Sea Water?

Cylinder heads.

Fuel valves.

Turbocharger.

Scavenging air.

In addition to a deck mounted emergency stop button what type of safety device would you expect to find on a grinder to protect the operator?

A glass shield.

A high voltage trip.

A reverse current trip.

An over current trip.

In the event of a main engine scavenge fire, which of the following options is the best course of action to take immediately?

Speed up the engine in an effort to blow the fire out.

Start the auxiliary blowers.

Stop the engine and keep it in one position until the fire is out.

Reduce main engine rpm to a minimum.

In which direction is the engine turned when taking crankshaft deflections?

Any direction.

Ahead.

Astern.

Both ahead and astern.

Main engine cylinder liners normally have «directional» air inlet ports in order to?

Cool the piston crown.

Induce swirling of the air inside the cylinder.

Minimize air turbulence.

Push hot gases away from the liner wall.

On a diesel engine, if the tappet clearances are greater than the manufacturer’s recommend setting, the cylinder head valves will …

Open late and close early.

Open early and close early.

Open early and close late.

Open late and close late.

Prior to putting an Oily Water Separator into operation, should you?

First drain it completely.

Fill it completely with clean sea water.

Flush the oily contents through with sea water prior to switching on the oil content monitor.

Partially fill it and pressurize it with air.

The purpose of fine mesh screens on bunker tank vent heads is to?

Prevent accidental overflow from the tank.

Prevent dirt from getting into the fuel tank.

Prevent the fumes from the tank affecting personnel working close by.

Prevent flames from passing into the tank.

What action is needed if the fuel has a high water content?

Advance the fuel timing.

Frequent draining of settling and service tanks.

Maintain a higher fuel oil temperature.

Maintain a lower fuel oil temperature.

What checks would you carry out before starting an air compressor after an overhaul?

Check for freedom of movement of the bottom end bearing.

Check pressure in the starting air bottles.

Check for debris from the overhaul, freedom of movement of the bottom end bearing and turn the compressor by hand.

Turn the compressor by hand.

What could be the most common reason for the hydraulic pump in a hydraulic pack to trip on high oil temperature?

A broken discharge valve.

A broken pump.

A broken suction valve.

A fouled oil cooler.

What do you particularly check for, in the crank case, after an engine liner replacement?

Water ingress.

Abnormal noise.

Lub oil ingress.

Piston Clearance.

What does the presence of copper in the crank case lub oil sample indicate?

Bearing wear.

Liner wear.

Piston wear.

Scraper box wear.

What is a piston profile gauge used for?

To measure the piston clearance in the liner.

To measure the piston groove wear.

To measure the piston rod wear.

To check for burn down of the piston crown.

What is the main reason for honing the liners of a medium speed engine during routine overhaul?

To reduce any ovality or barrelling of the liner.

To remove the glazing of the liner and re-establish a surface which retains the lubricating oil, thus reducing liner wear.

To remove scratches from the liner wall.

To remove the wear ridge at the top of the liner.

What is the maximum allowable sulphur content of marine heavy fuel oil as per MARPOL Annex VI?

4,5 %.

1,5 %.

2 %.

3 %.

What is the most common cause of turbocharger failure?

Bad fuel quality.

Bearing failure.

Lubrication failure.

Debris from the main engine.

What is the most common source of damage found on centrifugal pump impellers?

Cavitation damage.

Corrosion damage.

Fatigue cracks.

Impact damage.

What is the most important issue which must be borne in mind while inspecting critical equipment?

Reduction of possible risk to the vessel.

Failure Mode and Effects Analysis (FMEA).

It must not be carried out at sea.

Repair methodology.

What is the possible consequence of prolonged oil carry over from a starting air compressor?

It could cause a high starting air temperature.

It could cause lifting of the air compressor relief valve.

It could cause an air line explosion.

It could cause low starting air pressure.

What is the recommended DC voltage output from a welding machine?

Less than 70V.

Less than 110V.

Less than 240V.

Less than 440V.

What is the requirement for the space where oxygen and acetylene bottles are stored on a ship?

They should be stored in a well ventilated compartment in the accommodation.

They should be stored in an enclosed space.

They should be stored in separate well ventilated compartments on the deck.

They should be stored in separated well ventilated compartments in the engine room workshop.

What main harmful effects does the presence of excessive quantities of metals like sodium and vanadium in the fuel have?

Ineffective cylinder lubrication.

High temperature corrosion of exhaust valves.

Low calorific value.

Piston ring wear.

What material are welding gloves normally made of?

Leather.

Cotton.

Rubber.

Wool.

What measurements are taken during the overhaul of a unit of the Main engine?

Liner calibration.

Piston groove measurements.

Piston rod measurements.

Liner calibration, piston groove measurements and piston rod measurements.

What measurements would you take during the overhaul of a reciprocating pump?

Plunger, slide valves and bottom end bearing measurements.

Bottom end bearing measurements.

Plunger measurements.

Slide valve measurements.

What needs checking if there are high levels of chromium in the crank case lub oil?

The crosshead bearings.

The piston rings.

The cylinder liner.

The main bearings.

What needs to be checked on the liner before putting back the piston during the replacement of the main engine liner?

The flow of cylinder lub oil.

The flow of camshaft lub oil.

The flow of jacket cooling water.

The flow of system lub oil.

What position of the piston are exhaust valve clearances adjusted?

During the compression stroke.

During the exhaust stroke.

During the intake stroke.

During the power stroke.

What type of fire detection would you find in the engine room workshop?

A flame detector.

A smoke detector.

A thermal detector.

Solely a Manual Push/Break Glass system.

What type of pump would you expect to find in a hydraulic power pack?

A positive displacement pump.

A multi stage centrifugal pump.

A single stage centrifugal pump.

A sliding shoe pump.

What type of pump would you use for a high volume, low pressure application?

Lobe.

Centrifugal.

Reciprocating.

Screw.

Where does the concept of critical equipment come from?

The ISM code.

MARPOL.

SOLAS.

The ISPS code.

Where should the dial gauge be placed while taking crankshaft deflections?

Anywhere on the crank web but as indicated in the Planned Maintenance System.

As far as possible from the axis of the crank pin.

As close as possible to the axis of the crank pin.

The centre of the crank web.

Where would you expect to find damping wire used in a turbocharger?

The gas side.

Both gas and air sides.

The air side.

The bearings.

Where would you find the correct value for clearances of the main engine main bearings?

In the main engine instruction manual.

In the main engine lubricating oil piping diagram.

In the main engine spare parts manual.

In the Official log book.

Where would you look for, and expect to find, the position of various engine room double bottom tanks?

In the Engine Room Piping Schematic drawings.

In the general Arrangement plan.

In the stability booklet.

In the tank calibration tables.

Which clearance would have the maximum effect on the pumping efficiency of a centrifugal pump?

Impeller and wear ring clearances.

Bearing clearances.

Coupling clearances.

Shaft seal clearances.

Which of the following is the first and most basic step you take when you start work on a unit of the Main engine?

To engage the turning gear.

To remove the fuel pipes.

To remove the jacket water pipes.

To remove the starting air pipes.

Which of the following parts of the bilge discharge system need calibration?

The 15 ppm monitor.

Bilge water Inlet flow meter.

The opening angle of overboard discharge solenoid valve.

The recirculation solenoid valve position.

Which of the following tools are required for overhauling a turbocharger?

A bearing extracting tool.

A rotor locking tool, a bearing extracting tool and a spanner for the bearing nut.

A rotor locking tool.

A spanner for the bearing nut.

Which of the following tools would be required for replacement of a main engine cylinder liner?

A liner lifting tool, a piston lifting tool and a cylinder head lifting tool.

A cylinder head lifting tool.

A liner lifting tool.

A piston lifting tool.

Which property of fuel oil is used to select the gravity disc of the fuel oil purifier?

The sulphur content.

The viscosity.

The water content.

The density.

Why is an air compressor started in the unloaded condition?

To avoid high starting torque.

To avoid condensate carry over.

To avoid damage to the suction and discharge valves.

To avoid high discharge pressure.

Why is it important to ensure Boiler Sliding Feet are maintained and kept correctly lubricated?

To ensure the Boiler is allowed to expand freely when it changes temperature.

It is not important as the provision of the sliding feet were to allow easy location of the boiler when it was being fitted.

To allow limited movement of the boiler as the ship rolls and pitches in a seaway.

To allow the boiler to move as the steam pipes expand under high loading.

Why is the TBN value of the crankcase lubricating oil of a Medium/High speed Diesel Engine so important?

The TBN is necessary to combat any acidic combustion products that enter the crankcase.

The TBN is necessary to maintain the lubrication of the liner in the combustion area.

The TBN is necessary to maintain the viscosity of the oil at high temperatures.

The TBN is necessary to reduce any corrosion caused by any water entering the crankcase.