Advanced Marine Power Plant MARE 2032 Midterm Practice Flashcards

A set of 100 vocabulary-style flashcards based on the Advanced Marine Power Plant MARE 2032 midterm lecture and lecture content.

Spur gear

A type of gear used in rotary gear type pumps.

Lobe gear

A type of gear used in rotary gear type pumps that typically has only two or three teeth per rotor.

Helical gear

A type of gear used in rotary gear type pumps.

Screw gear

A type of gear used in rotary gear type pumps.

Herringbone gear

A type of gear used in rotary gear type pumps.

Vertical centrifugal

A classification of centrifugal pump based on the orientation of the pump.

Horizontal centrifugal

A classification of centrifugal pump based on the orientation of the pump.

Axial fluid flow

A classification of centrifugal pump based on the orientation of the fluid flow.

Radial fluid flow

A classification of centrifugal pump based on the orientation of the fluid flow.

Mixed fluid flow

A classification of centrifugal pump based on the orientation of the fluid flow.

Water Ring

A type of pump orientation listed in the notes.

Hot work Permit

A type of safety permit required for use on a ship.

Enclosed Space Permit

A type of safety permit required for entering confined or restricted areas on a ship.

Maintenance Permit

A type of safety permit required for performing repair tasks on ship machinery.

Battery room Permit

An example of a specialized permit used on a ship.

Deck Work Permit

A type of safety permit required for various operations performed on the deck of a ship.

Auto Start/Stop System

A protection system provided for the safe operation of the main air compressor.

Intercoolers

Systems provided between stages of an air compressor to cool the air.

Fusible Plug

A safety device listed as a protection for the main air compressor.

Pressure relief valve

A safety feature provided to prevent over-pressurization in a main air compressor system.

Rupture disc

A safety device for air compressors that fails at a set pressure to protect the system.

Drain

A system providing protection during the operation of the main air compressor.

Protective guards

Items that must be verified for presence and condition before working with power tools on a ship.

Residual current device

A safety device required when working with power tools on a ship to prevent electric shock.

Finger print oil

A contaminant that can leave enough oil to make a mechanical seal ineffective.

Ceramic material

A type of material used in mechanical seals that can crack under load.

Mechanical seal maintenance

Considered more expensive and time-consuming compared to traditional gland packing.

Multistage compression volume

A process where inter-stage cooling reduces air volume and temperature.

Lubrication oil stability

An advantage of multistage compression that provides a stable temperature for the oil.

Carbon build-up

An indicator of efficiency that is reduced by the multistage compression process.

Lower speeds

An advantage of multistage compression, providing the same output while operating more slowly.

General Service Air

A common use for medium pressure ($4-7\,bar$) compressed air on a ship.

Soot blower

A shipboard system that utilizes medium pressure compressed air ($4-7\,bar$).

Deck equipment

Machinery that uses medium pressure ($4-7\,bar$) compressed air.

Hydrophore tank

A pressure tank system that uses shipboard medium pressure compressed air.

F.W.G.

Abbreviation for Freshwater Generator, which uses medium pressure compressed air on a ship.

Boiler Atomizing Air

Compressed air used for the burner in ship boilers at $4-7\,bar$.

Minimum Pressure drop

A primary advantage of using a gate type valve.

High Pressure and Temperature

Conditions that gate type valves are specifically designed to handle.

Throttling

A function that gate type valves cannot perform; they cannot be used to control flow.

Gate valve vibration

A disadvantage that occurs when the valve is left in a semi-open position.

Compactness

A major advantage of plate type heat exchangers.

High Heat transfer rate

A key characteristic and advantage of plate type heat exchangers.

Low fouling rates

An advantage of plate type heat exchangers compared to other designs.

$12$ consecutive starts

The air bottle requirement for starting a reversible engine.

$6$ consecutive starts

The air bottle requirement for starting a non-reversible engine.

Constant volume flow

An advantage of using a centrifugal pump.

Priming

A requirement for starting many centrifugal pumps, considered a disadvantage.

High cavitation

A specific disadvantage and risk associated with the operation of centrifugal pumps.

Bumping clearance

The clearance measurement between the piston crown and the cylinder head at $TDC$.

Soft lead strips

Tools placed on the piston crown to check the bumping clearance of an air compressor.

Dial gauge

An alternate tool mentioned for checking bumping clearance besides lead wire.

Parallel Flow

A flow arrangement for heat exchange patterns.

Counter Flow

A flow arrangement for heat exchange patterns.

Cross Flow

A flow arrangement for heat exchange patterns.

$1994$ SOLAS Convention

The international convention that integrated the ISM Code into the maritime industry.

Structured communication channels

The required method for reporting accidents and incidents according to the SMS.

ALARP

An acronym for As Low As Reasonably Practicable in the context of risk management.

Reliable operation

The reason why rotary pumps should be operated at relatively low speeds.

Rubber hose and clamps

A method commonly used for making temporary repairs to a leaky pipe.

Safety Management System objective

To manage safety risks in ship operations.

Language understood by all

The communication requirement for ship personnel as assured by the Company in ISM Section 6.

The Master

The individual with ultimate responsibility for implementing the ISM Code aboard a ship.

Changing atmosphere

The condition during which it is most critical to monitor the atmosphere in a confined space.

$$20.8\%$$

The minimum oxygen level required by volume for safe entry into a confined space.

Closed impeller design

The impeller design type generally associated with better efficiency.

Lobe type pump

Differs from a gear pump by having only two or three teeth per rotor for liquid movement.

Balancing holes

Features in impellers that maintain hydraulic balance and reduce axial thrust.

Lantern ring

A component in a stuffing box that provides lubrication and cooling to the packing material.

Document of Compliance

A document that must be issued for the office according to the ISM code.

Safety Management Certificate

A document issued according to Section D of the maritime exam requirements.

Forced convective flow

The type of fluid flow in a heat exchanger that enhances heat transfer by increasing turbulence.

Pinch valves

Ideal for handling slurries and solids because they use a rubber tube with no internal moving parts.

Needle Valve

The valve type noted for application in precision flow control.

Butterfly valve

The valve type typically chosen for rapid emergency isolation in engine room fuel lines.

Rotating disk

The component of a butterfly valve that is critical for its operation.

$$80^\circ C$$

The expected outlet temperature of water from the freshwater generator in the high-temperature circuit.

Helix design

The characteristic design of screw pumps which use threaded screws to displace fluid.

Permit-to-work system

Provides formal written safety control for confined space entry.

Quick closing valve

A valve system associated with fuel and lube oil isolation from tanks during a fire.

Busting disc

A safety feature commonly fitted on air compressor casings to relieve excessive pressure.

Leaky compression ring

A factor that can contribute to oil carryover in compressed air systems.

High lube oil level

A condition that can cause oil carryover in compressed air systems.

Unloader

A device that reduces the load on the prime mover during start-up in a reciprocating compressor system.

Spiral lobe oil-flooded screw compressor

The type of rotary compressor most common for deck air and grit blasting applications.

Volumetric efficiency

The ratio of free air delivered ($FAD$) to the piston displacement per minute.

Check valves

Components in a reciprocating positive displacement pump that allow flow in only one direction.

MARE 2032

The course code for Advanced Marine Power Plant.

Matthew Barney

The student who completed the Advanced Marine Power Plant midterm examination.

$24th$ June $2026$

The date the Marine Power Plant midterm examination was held.

$1$ hour $50$ Mins

The total time allowed for the midterm examination.

Functional drawing

A requirement for diagrams to be considered for full credit on the exam.

Black or blue ink pen

The required writing instrument for the midterm examination.

$$64/100$$

The total point score earned by student Matthew Barney on the exam.

$$4-7\,bar$$

The pressure range defined as medium pressure for compressed air on a ship.

ISM Code

The International Safety Management Code integrated formally into the maritime industry.

Free Air Delivered

A measurement abbreviated as $FAD$ used to determine volumetric efficiency.

$$TDC$$

Abbreviation for Top Dead Center, used in the definition of bumping clearance.

Piston displacement per minute

The denominator in the ratio used to measure volumetric efficiency of an air compressor.

Central priming system

The subject system for drawing and describing in Section B of the exam.