The generic starting procedure for a rotary pump is followed correctly in which of the following statements? Open the suction valve, start the pump, then slowly open the discharge valve, Open the discharge valve, start the pump, then slowly open the suction valve, Open the suction and discharge valves, then start the pump, Start the pump, then open the suction and discharge valves

Open the suction and discharge valves, then start the pump

In mechanical seals, a snug fit is maintained between the rotating and stationary seal by what means?

Spring pressure and system pressure

Mechanical seals are ideal for use in pumps in closed systems for which of the following reasons?

There is no loss of fluid from the system.

Positive-displacement rotary pumps are capable of which of the following actions? Raising fluids a fixed distance through a pair of rotating screws, Raising a fluid between points located on different levels, Transferring a fixed amount of fluid with each revolution of its shaft, Transferring fluids between two fixed points on the same level

Transferring a fixed amount of fluid with each revolution of its shaft

The generic starting procedure for an electric motor driven reciprocating power pump is followed in which of the following statements?

Open the suction and discharge valves, then start the pump.

In a reciprocating pump, the term direct acting indicates that the pump has which of the following characteristics? A cam between the piston and the pump plunger, A single pump rod connecting the piston and the pump plunger, A water chest directly mounted to the pump, A one-piece piston and pump plunger

A single pump rod connecting the piston and the pump plunger

Before examining or repairing a reciprocating pump, you should first take which of the following actions? Options: Mark the piston stroke adjustment, Take micrometer and caliper measurements of the valve cylinders, Study all available data on the pump including blueprints and drawings, Dismantle the suction end of the pump

Study all available data on the pump including blueprints and drawings.

The generic starting procedure for a centrifugal pump is followed correctly in which of the following statements? Start pump, then open suction and discharge valves, Open suction valve, start pump, then slowly open discharge valve, Open discharge valve, start pump, then slowly open suction valve, Open suction and discharge valves, then start pump

Open suction valve, start pump, then slowly open discharge valve

Removable sleeves are put on a centrifugal pump shaft for what reason?

For economical replacement of a worn sleeve, vice a worn shaft.

Of the following pumping applications, a suction lift most likely exists when? Ballast pump is taking a suction from sea, Bilge pump is taking a suction on an engine room bilge pocket, Potable water pump is taking a suction on a free-standing storage tank, Fuel oil transfer pump is taking a suction on a fuel oil wing tank

Bilge pump is taking a suction on an engine room bilge pocket.

Of the following pumping applications, a flooded suction will most likely exist when? Bilge pump is taking a suction on a cargo hold bilge, Fuel oil transfer pump is taking a suction on a fuel overflow tank, Sludge transfer pump is taking a suction on a waste oil tank, Ballast pump is taking a suction from sea.

Ballast pump is taking a suction from sea.

A centrifugal pump is operating at a lower than normal capacity and sometimes fails to deliver any liquid. What condition is the probable cause?

Air is somehow being sucked into the pump suction.

A type of strainer serviced by rotating the operating handle one complete turn each four-hour watch is described by which of the following? Wound metal or knife edge strainer, “Y” strainer, Sintered Metal filer, Simplex basket strainer

Wound metal or knife edge strainer

Other than periodic replacement of the filter element, a coalescing fuel filter is routinely and periodically serviced in what other way? Options: Draining sludge from the bottom of the bowl, Draining water from the bottom of the bowl, Draining fuel from the bottom of the bowl, Draining air from the bottom of the bowl

Draining water from the bottom of the bowl

When shifting over a fuel oil duplex strainer, the strainer selector handle is moved from the off-going element to the on-coming element. This movement should be done slowly for what purpose?

To prevent an interruption of fuel supply should the on-coming housing be partially filled with air.

A build-up of attracted steel particles on a lube oil system’s magnetic type strainer magnet indicates which of the following?

An indication of wear of steel surfaces of the machinery being lubricated.

An in-line lubricator will most likely be used in which of the following compressed air system application(s)? Service air hose connections for operating pneumatic tools, Service air hose connection for potable water hydrophore recharging, Service air hose connection for engine room service fresh water hydrophore recharging, Service air provided to pneumercators for purging purposes

Service air hose connections for operating pneumatic tools

For safety reasons, before a piping system can be opened for repairs, which of the following procedures should be followed?

The section of system to be opened must be isolated, locked and tagged out, and drained or depressurized as appropriate.

A piece of equipment is shut down for repairs. Which of the following actions should be taken prior to starting repairs? Notify the bridge, Isolate and lockout and tag out the piece of equipment to be worked on, Isolate the equipment but there is no need to lockout or tagout, There is no need to isolate the equipment but you should lockout and tagout

Isolate and lockout and tag out the piece of equipment to be worked on

If it becomes necessary to manually throttle fluid flow through a sea water cooled lube oil cooler for the purpose of lube oil temperature control, the valve to be throttled would be the? Options: Sea water inlet butterfly valve, Sea water outlet butterfly valve, Lube oil inlet globe valve, Lube oil outlet globe valve

Sea water outlet butterfly valve

The rate of heat transfer is fastest per unit of time between which of the following objects or substances? Options: Iron at 200 degrees F and a metal sheet at 150 degrees F, A brick at 200 degrees F and a block of ice at 32 degrees F, Ice and sea water at 35 degrees F, Boiling water and a steel rod at 230 degrees F

A brick at 200 degrees F and a block of ice at 32 degrees F

Proper procedure should be followed when securing heat exchangers. If the seawater side of a seawater cooled shell and tube lube oil cooler is to be drained prior to being secured and left in dry lay up, which of the following statements is true?

Once the sea water isolation valves have been closed, open both the water box drain and vent valves.

The proper procedure for shifting from the #1 Lube oil cooler which is presently on service to the #2 lube oil cooler would be to follow which of the following procedures?

Cut in sea water to cooler #2, venting the water box as necessary. Cut in lube oil to cooler #2. Secure lube oil to cooler #1. Secure sea water to cooler #1.

A return type of heat exchanger has which of the following distinctive features? Coils of tubing, Pairs of flat oblong strips, One tube inside another, U-shaped tubes in one tube sheet

U-shaped tubes in one tube sheet

Piping connections are located on a titanium plate heat exchanger at what parts of the unit?

At each corner of the heat exchanger.

BAPO 101-200

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FLASHCARD QUESTION

Front

Which of the following general class of pump(s) is not self-priming and cannot prime itself when a suction lift exists?

Back

Centrifugal pump

FLASHCARD QUESTION

Front

With respect to impellers, centrifugal pumps have which of the following classifications? Single stage only, Mechanically sealed, Single & multi-stage, Horizontal or vertical

Back

Single & multi-stage

FLASHCARD QUESTION

Front

Which of the following general pump class types is ideally suited to pump water, specifically for most shipboard sea water and fresh water applications? Diaphragm pump, Rotary pump, Reciprocating pump, Centrifugal pump

Back

Centrifugal pump

FLASHCARD QUESTION

Front

An axial flow/propeller pump would most likely be used in which of the following applications? Potable water system, Ballast system, Fire main system, Main circulating sea water system

Back

Main circulating sea water system

FLASHCARD QUESTION

Front

In which application(s) is a sea water operated jet pump most likely to be used? Eductor, Fire pump, Ballast pump, Main circulating sea water pump

Back

Eductor

FLASHCARD QUESTION

Front

Aboard ship, which of the following pumps will most likely be a propeller-type pump? Options: A hydraulic transmission pump, A main condenser circulating pump, A steering gear pump, A fuel booster pump

Back

A main condenser circulating pump

FLASHCARD QUESTION

Front

Which of the following terms is/are common to all types of pumps? Power end and fluid end, Propeller and eductor, Volute vane impeller, Turbine and piston

Back

Power end and fluid end

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