OSE02 - Assistant Engineer - OSV

For diesel engines, such as those used for main propulsion and auxiliary power on offshore supply vessels, while runnin...

What is meant by the term independent bilge suction?

After measuring the length to which a section of shoring should be cut, you should cut the shoring __________.

An unintended path of low resistance bypassing the intended path and allowing passage of an abnormally high amount of c...

In all diesel engines, including those used in offshore oil spill response vessels, at what point in the combustion cyc...

Under what conditions is it permissible to pump machinery space bilges directly overboard without processing by an oily...

Which type of respiratory protection is preferable for the repair/investigation personnel in a hydrogen sulfide (H2S) e...

For the purpose of calculating line current, which of the following procedures should be used to determine the total li...

You are assigned to a platform supply vessel fitted with main propulsion diesel engines of the type shown in the illust...

Which of the following compressors would be used for a dead ship start-up of a ship's service diesel- generator on a mot...

The bypass valve on a self-contained breathing apparatus (SCBA) bypasses __________.

In a series circuit, what is the applied voltage (or sum of the applied voltages) equal to?

You are assigned to an offshore supply vessel fitted with main propulsion diesel engines of the type shown in the illus...

The air charge leaving an intercooler or after cooler of an air compressor can be expected to be which of the following...

The wooden plug fitted tightly in the vent of a damaged tank may prevent the tank from __________.

As shown in figure "A" of the illustration, with the switch closed what statement is true if "R1" and "R2" have unequal...

The offshore oil spill response vessel to which you are assigned is fitted with main propulsion diesel engines of the t...

Which of the fluids listed is suitable and commonly used as a secondary refrigerant?

Progressive flooding in the engine room may be minimized by securing watertight boundaries and __________.

How is the power dissipated as heat in a simple direct current circuit consisting of one resistive load calculated?

The multi-purpose offshore supply vessel to which you are assigned is fitted with main propulsion diesel engines of the...

The term "oil foaming" in refrigeration practice, is used to describe what event?

A three inch overboard discharge line, located six feet below the waterline, has ruptured and separated from the hull. ...

What is an ohmmeter used to measure?

Prior to starting a main propulsion diesel engine fitted on your multi-purpose offshore supply vessel, it has been dete...

The carbon seal ring of a refrigeration compressor crankshaft mechanical seal is held in position against the stationar...

The blocking open or absence of fire dampers can contribute to __________.

A resistance is added in series and internally with the analog meter movement of which of the following instruments?

In preparation for getting a platform supply vessel underway, what is the primary factor to consider in whether or not ...

Capacity control of a centrifugal refrigeration compressor can be accomplished by what means?

Except in rare cases, it is impossible to extinguish a shipboard fire by __________.

What is an ammeter used to measure?

When starting a main propulsion diesel engine fitted with attached pumps in preparation for getting underway on your of...

Through which of the components shown in the illustration is flash gas formation a normal occurrence? Illustration RA-0...

Which of the conditions listed is necessary for a substance to burn?

When configuring a digital multimeter as an ohmmeter, what will MOST likely be displayed on the screen when the test le...

The offshore supply vessel to which you are assigned is fitted with generator set drive engines as shown in the illustr...

As shown in figure "B" of the illustrated self-contained recovery unit connection diagrams, what is the recovery method...

Which of the following statements is true concerning carbon dioxide when used as a fire extinguishing agent?

To keep emergency lead-acid batteries in a full state of charge for emergency use, what is normally done?

The anchor handling vessel to which you are assigned is fitted with generator drive engines of the type shown in the il...

In a twin-tower desiccant type air dryer using silica gel as an adsorbing agent, what is the procedure for rejuvenating...

Which of the following statements is true concerning the Halon 1301 fire extinguishing agent?

A shaded-pole motor is a specific type of motor included in what class of motor?

The offshore oil spill response vessel to which you are assigned is fitted with auxiliary engines as partly shown in th...

Which of the following statements represents the proper criteria to decide when to drain a filter/moisture separator as...

Which of the following statements is TRUE concerning life jackets?

What is the most practical method of controlling the RPM of a multi-speed AC motor operating at a constant frequency?

When starting a deck winch drive engine in preparation for cargo handling operations, what parameter must be checked FI...

Before charging a refrigeration unit, unless quick disconnect fittings are used, the refrigerant charging hoses should ...

An immersion suit should be equipped with a/an __________.

Which of the illustrated motors has an open, drip-proof (ODP) motor enclosure? Illustration EL-0001

When checking the crankcase oil level on an off-line diesel generator set engine on your offshore oil spill response ve...

Which of the following statements is true concerning the gauge labeled "A" of the illustrated gauge manifold set? Illus...

In the illustration shown, the sea painter is identified as item number _____. Illustration SF-0043

As shown in the illustrated wound-rotor induction motor, what statement is true concerning motor lead connections? Illu...

The various auxiliary diesel engines fitted on your anchor handling vessel may employ a variety of different cranking m...

As shown in figure "A" of the illustrated block diagram of a central operating system configured for direct digital con...

Who is responsible for lowering the survival craft?

What is the primary advantage of stranded cable over solid cable which establishes the basis for the requirement for st...

The various auxiliary diesel engines fitted on your offshore oil spill response vessel may employ a variety of differen...

As shown in figure "B" in the illustrated block diagram of a central operating system configured for supervisory contro...

In heavy seas the helmsman should steer the survival craft __________.

In preparing a battery-operated digital megohmmeter (resistance tester) for use, what statement is true?

The main propulsion diesel engines used to power the offshore supply boat to which you are assigned are started with va...

As shown in figure "A" of the illustrated block diagram of a central operating system configured for direct digital con...

If a life raft should capsize, __________.

Grounds occurring in electrical machinery as a result of insulation failure may result from deterioration over time and...

Various diesel engines onboard your offshore supply vessel are started by means of either vane-type or air- turbine air-...

Which of the following liquid level sensors would be most suitable for measuring the liquid level in a pressure vessel,...

Which fire extinguisher is most prone to freezing when stowed in low temperatures?

The leads from an ohmmeter are attached to the leads of the opposite ends of an AC induction motor stator coil. If a re...

A diesel generator set on your offshore supply boat has a simplex lube oil strainer of the type shown in the illustrati...

What is another name for the control mode used in a process control system that uses two-point control?

Annual servicing of a hand portable CO2 fire extinguisher includes __________.

What can be the cause of excessive heat or burning contacts in an operating motor controller?

The main diesel engines on the OSV to which you are assigned are fitted with a basket type lube oil strainer, which mus...

Which of the following roller bearing types would be limited to radial thrust load applications?

Which of the following statements is true concerning the fire extinguisher shown in the illustration? Illustration SF-0...

How can the loss of residual magnetism in an alternator with a brushless excitation system be corrected?

Concerning the diesel fuels used for the auxiliary and main propulsion diesel engines on-board the offshore supply vess...

Rolling element bearings may experience fatigue failure after a length of service. What is the first evidence of the be...

Which of the listed characteristics applies to a semi-portable CO2 system?

Which of the following procedures represents the best method to prevent the freezing of lead-acid batteries continuousl...

Which of the following fuel systems is characterized by a complete absence of high pressure fuel lines?

What is the primary purpose of the lead-lag arrangement of the two potable water pumps supporting a typical potable wat...

When the cotton cover of a fire hose becomes oily or greasy, it should be washed with a solution of mild soapy fresh wa...

The individual 12-volt lead-acid batteries, when connected as shown in the illustration, as a battery bank would produc...

The multi-purpose supply vessel to which you are assigned has diesel generators fitted with fuel systems as shown in th...

With regard to the relative flow patterns through the tubes and the shell of shell-and-tube heat exchangers, what state...

Low velocity water fog is used in firefighting as a __________.

The nominal voltage of one cell of a wet cell nickel-cadmium battery is approximately how many volts?

What maintenance practice represents the best protection against moisture carryover to the fuel injection system of the...

With regard to the number of passes through the tubes of shell-and-tube heat exchangers, what statement is true?

Which of the following components provides a direct source of sea water for the fire main system?

How is the difference between the synchronous speed of a three-phase induction motor and its operating speed correctly ...

The main engines on the anchor-handling supply boat to which you are assigned are fitted with duplex secondary spin-on ...

What is meant by the term "deadband" as it applies to prime mover speed control governors?

On a cargo ship equipped with a combination fire detection/carbon dioxide extinguishing system, the presence of fire is...

As shown in figure "A" of the illustration, what does the M-G set's three-phase drive motor mechanically drive? Illustr...

The platform construction support vessel to which you are assigned has a deck winch drive engine fitted with fuel injec...

Concerning governor speed droop, what statement is true?

In the event of an exhaust duct fire, most dry chemical and carbon dioxide galley range fixed extinguishing systems are...

Referring to the illustration of a steering gear hydraulic power unit motor controller, if the motor is drawing current...

On diesel engines used on a multi-purpose supply vessel, which type of injection system is most likely to use sophistic...

With regard to the flow patterns associated with plate type heat exchangers, which flow pattern is able to achieve coun...

Where are "prohibited oil spaces" specified in the Pollution Prevention Regulations 33 CFR Subchapter O?

What is the functional purpose of a generic electromagnetic relay?

The oil spill response vessel to which you are assigned has diesel generators fitted with multi-plunger pumps with the ...

Energy losses occurring in a hydraulic system are ultimately absorbed by the __________.

If deck cargo is carried, it should be stowed so that it __________.

Which metal is primarily used on shipboard equipment to face contacts in electrical equipment?

The drilling platform supply vessel to which you are assigned has diesel generators fitted with unit injectors of the t...

The determining factor for the strength of a flexible rubber hydraulic hose is the __________.

When fighting a shipboard fire, crew members securing doorways, hatches, and applying cooling water to adjacent decks a...

Under unusual circumstances, it may be required to operate a ship's service generator above its rated kV

The offshore supply vessel to which you are assigned has diesel generators fitted with fuel injectors of the type shown...

In application, which of the listed sealing devices is most similar to an O-ring?

The most effective method of extinguishing a class "A" fire is by __________.

At a minimum threshold, how many milliamps of current through the body produces a painful sensation that most people wo...

The main propulsion diesel engines on your anchor-handling supply vessel are fitted with conventional hydraulically ope...

Both the direction of flow and fluid flow rate of a variable displacement radial piston pump are determined by the rela...

In firefighting, the term "protecting exposures" means __________.

Contact with any energized electrical system conductor is potentially hazardous and precautions should be taken to prev...

The generator drive diesel engines on your supply boat are fitted with a multi-plunger injection pump with high pressur...

In which lubrication application is a detergent type oil most likely to be used?

Which extinguishing agent is the best for use on electrical fires?

What is the primary means by which an electrical maintenance worker is protected from electrical hazards while performi...

The offshore supply vessel to which you are assigned has main engines fitted with intake and exhaust systems as shown i...

If the bearings of a piece of machinery are force-fed by a pressure-feed lubricating oil system, which statement is tru...

The best means of combating an oil fire on the surface of the water surrounding a vessel tied to the pier, is to use __...

In general, what type of starter would be used to connect polyphase induction motors to full line voltage at the instan...

The oil platform construction support vessel to which you are assigned has main diesel engines fitted with intake and e...

Which of the following lube oil filters would be considered acceptable for use with today's high detergent additive typ...

The longer an oil fire is permitted to burn, the __________.

Which of the following statements about a three-phase wye connected alternator is correct?

In order to minimize the abrasive action of dust particles entering the combustion spaces of the diesel engines used on...

A typical oily-water separator has three stages of separation. Which statement represents the correct sequential order ...

If flammable vapors have penetrated a gas free space, which of the following actions would be the most hazardous to per...

When paralleling an incoming alternator with the bus manually, the synchronizing lamps grow dim and become totally dark...

The diesel engines on your general-purpose supply vessel are all protected with dry-type air filters. The air filters s...

A 'centerline' depicted in a drawing or blueprint is represented by which of the figures shown in the illustration? Ill...

A tank has been sealed and unventilated for a long period of time. Which of the following statements is true?

From the information given in the illustration, what would be the maximum output amperage available from the emergency ...

The anchor handling supply vessel to which you are assigned has diesel generator engines fitted with intake and exhaust...

Suppose the illustrated self-contained, internal-pilot, piston-operated temperature control valve is part of the temper...

Combustible gas indicators incorporate the use of a/an __________.

In terms of propulsion generator type, power conditioning schemes, and propulsion motor type, what combination of equip...

Water-jacketed exhaust manifolds as used on anchor-handling supply vessel main engines require periodic inspection of t...

Suppose the pilot pressure range is from 3 to 15 psig for the illustrated pneumatically operated diaphragm actuated con...

An oxygen indicator will detect __________.

How are fuses usually rated?

Wire brushing and scraping can be used to remove hard carbon deposits from exhaust system surfaces. When cleaning exhau...

In the pump shown in the illustration, what is the distance from the bottom of the inlet to the bottom end of the motor...

If you see an individual fall overboard, what is the FIRST thing you should do?

Which pair of safety disconnect switches shown in the illustration represents the exterior and interior views of a doub...

The freshwater cooling systems serving the main engines of the platform supply vessel to which you are assigned are arr...

When an electricity generating plant features shaft-driven generators, what type of propulsor would be the most practic...

Which of the following conditions is true concerning flammable liquid vapors with a concentration above the upper explo...

Referring to the illustration, what is the position of the three circuit breakers labeled in figure A, B, and C respect...

The freshwater cooling systems serving the main engines of your offshore supply vessel are of the type shown in the ill...

With respect to a "pusher" type azimuthing thruster, what statement is true?

The highest concentration of a harmful substance to which a person may be exposed without danger to health, is termed t...

The arc resulting from the tripping of a circuit breaker is prevented from damaging the contacts. How is this done?

The raw water boxes of the freshwater coolers serving the main propulsion diesel engines on your offshore supply vessel...

What is an example of an epicyclic gear?

The process that occurs when heat is generated by a chemical reaction within a substance and continues to a point of ig...

When a transformer is used to step down voltage, what statement is true?

Your platform supply vessel is fitted with cooling water systems serving the main propulsion diesel engines as shown in...

Concerning steerable internal duct thrusters, what statement is true?

To prevent the spread of fire by convection you should __________.

In consideration of what a wattmeter is designed to measure, how would a wattmeter be electrically connected in a circu...

The diesel generators on the platform supply vessel to which you are assigned are fitted with a charge air system as sh...

The function of seal cages, or lantern rings installed in the centrifugal pump stuffing boxes, is to __________.

When required to work in an area where explosive gases may accumulate, you should use hand tools which are __________.

Which line in figure "B" shown in the illustration represents the trailing edge of the wave? Illustration EL-0088

The auxiliary engines on the offshore supply vessel to which you are assigned are fitted with Roots-blowers as shown in...

If a centrifugal pump were continually operated with the discharge valve closed, the __________.

The most likely location for a liquid cargo fire to occur on a tanker would be __________.

Which of the following statements concerning analog and digital electronic system signals is correct?

The two-stroke cycle main propulsion engines on the supply boat to which you are assigned are fitted with Roots-type bl...

A centrifugal pump gradually develops insufficient discharge pressure. What corrective action is required?

A simple precaution to reduce the possibility of accidental fires in the paint locker, is to __________.

A silicon-controlled rectifier (SCR) is a solid-state device used for what functional purpose?

The turbochargers on the main propulsion engines on the OSV to which you are assigned are fitted with an exhaust inlet ...

The output volume of a positive fixed displacement pump can be changed only by __________.

A fire involving trash and paper waste would be classified as a __________.

In what applications are semiconductor diodes commonly used?

The multi-purpose supply vessel to which you are assigned is fitted with main propulsion reduction gears as shown in th...

In accordance with 33 CFR Subchapter O (Pollution), which type of Marine Sanitation Device (MSD) is used solely for the...

A class "D" fire would involve the burning of __________.

Assuming a 120 VAC input across TP1 and TP2 and a regulated output of 24 VDC across TP5 and ground, in which section of...

The oil platform supply vessel to which you are assigned is fitted with main propulsion engines driving through pneumat...

The rudder torque capacity of the four-ram steering gear illustrated, is rated at 44,210,000 inch-pounds with one power...

The class of fire on which a blanketing effect is essential to extinguish the fire is __________.

How are operational amplifiers, used primarily in analog circuits, characterized?

The lubricating oil system supporting the main propulsion reduction gear on the platform supply vessel to which you are...

How would you prevent the rudder from moving while a repair is made on the steering system using the illustrated actuat...

Fire detecting systems on merchant vessels may be arranged to sense __________.

Referring to figure "4" of the illustration, what type of logic gate is symbolized? Illustration EL-0035

The lubricating oil system supporting the main propulsion reduction gear on your offshore supply vessel is fitted with ...

While at normal sea speed the rudder movement stops, but is restored after changing over power units. At the earliest o...

When preparing to pump flammable liquids with a centrifugal pump, you should __________.

Ships requiring extremely rapid maneuvering response using propeller shaft speed and direction as the sole means of con...

The anchor handling vessel to which you are assigned has a pneumatic propulsion control system as shown in the illustra...

Referring to the illustrated diagram for a central-station hookup for a hot water heating system, what statement repres...

Bunker "C" is classified as a grade __________.

An electric propulsion drive system in which the propulsion generator supplies power to both the propulsion motor and s...

The oil platform supply vessel to which you are assigned has a pneumatic propulsion control system as shown in the illu...

What pressure drop across an air conditioning filter is indicative of a need to replace or clean the filter as appropri...

Which of the following hazards is associated with the handling of petroleum products?

The propulsion motor most often utilized in an AC drive system operating in the moderate to high power range is of what...

The pneumatic propulsion control system used on your oil platform supply vessel uses a diaphragm-operated relay valve a...

In the illustrated single zone HVAC system, what statement represents the functioning of the diverting relay as it cont...

Individuals who have consumed alcohol within 24 hours of exposure to H2S can tolerate __________.

As shown in the illustration, if the port propulsion motor field excitation circuit experienced a failure of an individ...

The main engines on your anchor handling supply vessel are equipped with manual shutdown levers as shown in the illustr...

To measure the circumference of a piece of pipe, you should use a __________.

A tank or compartment is "gas free" when there is an absence of dangerous concentrations of __________.

Occasionally a synchronous motor is configured without an external shaft to drive a load. In this case, the sole purpos...

The main engines on your oil platform supply vessel are fitted with speed control governors of the type shown in the il...

For the power hacksaw shown in the illustration, how should the teeth point for the blade being installed? Illustratio...

While in a foreign port, burning and welding repairs are to be carried out on a section of heating coil located in a ta...

A salinity indicator system such as that used to measure the salt content of potable water systems and boiler feed and ...

The main diesel propulsion engines on your offshore supply vessel are protected with a mechanical overspeed trip mechan...

The locking plates shown in the illustration are used in many marine applications. Which figure indicates the improper ...

A health hazard term listed on a Safety Data Sheet (SDS) that indicates allergic-like reaction in some people after rep...

Assuming the vessel has an engine control room, where is an engineers' assistance-needed alarm required to produce an a...

The main diesel engines on your general-purpose supply vessel are protected with an array of devices designed to provid...

Which of the listed temperature sensors is made of heat-treated metallic oxides and generally has a negative coefficien...

Victual waste is __________.

Referring to the illustration pertaining to an alternator protection and alarm system, what statement is true concernin...

The deck winch on your ship-handling tug is fitted with a Woodward SG Type governor, as shown in the illustration. In a...

Which of the following direct pressure measuring instruments is most appropriately used for measuring most pressures, t...

In cleaning up an oil spill, the use of straw or reclaimed paper fibers would be an example of which type of oil remova...

While monitoring an impressed current cathodic hull protection system, which of the following measurements should remai...

The steam generating plant on your oil spill response vessel is of the forced-circulation type. Which figure of the ill...

In attempting to start the hydraulic pump drive motor of a horizontal electro-hydraulic anchor windlass, what condition...

In accordance with 33 CFR Subchapter O (Pollution), which of the following is NOT required to be provided as part of th...

Which of the listed conditions occur when selection is made for "third point hoist" on the winch hoist controller shown...

The heating plant on your anchor handling supply vessel is of the type shown in the illustration. What statement is tru...

At appropriate intervals, inspection rounds should be made of the main propulsion plant, auxiliary machinery, and steer...

In figure 1 of the illustration, fire would spread to compartment "B" by__________. Illustration SF-0013

When the control handle is in the "off" position, what is the status of the solenoid actuated brake of an electric winc...

The water-tube natural-circulation steam boiler on your general-purpose supply vessel is equipped with soot blowers for...

Under which of the listed conditions can the engine room retake the throttle control from the bridge of an automated ve...

In accordance with 33 CFR Subchapter O (Pollution), the Oil Record Book for all U.S. ships ________.

Which of the substances listed should be applied to battery terminals to help prevent corrosion?

The auxiliary oil-fired water-tube steam boiler on your platform supply vessel is equipped with a water column similar ...

What statement is true concerning the door interlock devices associated with a winding drum or traction drive passenger...

Static water pressure on the hull of a ship is greatest at the __________.

What is the best method of determining the state of charge of a flooded lead-acid storage battery?

The auxiliary oil-fired water-tube steam boiler on your anchor-handling supply vessel is equipped with a water column s...

Which of the drill sizes listed represents the largest size drill?

If the cause of severe list or trim of a vessel is due to off-center ballast, counter-flooding into empty tanks will __...

What should be included in the routine periodic maintenance checks for electrical motors?

Due to the questionable mineral content of fresh water taken on from shore as a source of make-up water for diesel engi...

If the speed of a drill is too great, the drill will __________.

In the absence of external forces, the center of gravity of a floating vessel is located directly above the __________.

Before any work on electrical or electronic equipment is performed, which of the following precautions should be carrie...

Diesel engine closed, recirculating cooling water systems are particularly prone to cavitation corrosion/erosion. Which...

What is the name of the opening in a bilge margin bracket that reduces the weight of the bracket without materially red...

Reserve buoyancy is the __________.

Why are electric strip heaters used in motor controllers?

A main diesel engine on your platform supply vessel has experienced a safety shutdown due to excessive crankcase pressu...

Even though bilge keels do provide some improvement in longitudinal strength at the bilge radius, what is the primary pu...

The vertical motion of a floating vessel is known as __________.

What is a useful instrument for checking 3-phase AC motor performance by measuring possible unbalanced currents?

You are attempting to start a deck winch drive engine fitted with an electric cranking motor where the battery electroly...

When making welding repairs to a ship's structural member, why is it important to avoid weld faults?

With no environmental forces acting on the vessel, the center of gravity of an inclined vessel is vertically aligned wi...

Which of the conditions listed will indicate the need to clean the insulation on the stator windings of an alternating c...

While warming up the main engines on your offshore utility vessel while tied up at your own pier, one of the main engine...

A spur gear pump should be operated with the discharge valves __________.

The water in which a vessel floats provides vertical upward support. The point through which this support is assumed to ...

In the illustration of the one-line distribution system diagram, if at sea the 450 VAC section of the main switchboard e...

While underway in open waters on your platform supply vessel, the low clutch air pressure alarm sounds and the faint odo...

The line labeled "C", as shown in the illustration, would be identified as the ______. Illustration GS-0175

In the absence of external forces, adding weight to one side of a floating vessel, will cause the vessel to __________.

Referring to the containership one-line distribution diagram shown in the illustration, what statement is true concernin...