SURE BA TO? SURE NA SANA (QUIZ LAST TIME +Modul 5-6 (lastpart) and

The fuel supply must be adjusted automatically to correct for change.

TEMPERATURE OR PRESSURE

VELOCITY

VISCOSITY

VOLUME

The efficiency of a bearing chamber oil seal depends on its mechanical design and

THE FUEL PRESSURE

COMPRESSOR BLEED AIR PRESSURE

THE ENGINE COMPRESSION RATIO

THE ENGINE OIL PRESSURE

It has fixed nozzles that orient the gas/steam flow into high speed jets

IMPULSE TURBINE

REACTION TURBINE

BLADES

AXIAL

One of the classifications of a gas turbine that has twin spool.

OPEN CYCLE

GAS GENERATOR

COMBINED CYCLE

CLOSED CYCLE

It is driven by the turbine in the near of the engine and its job is to compress.

COMPRESSOR

TURBINE

COMBUSTION CHAMBER

REACTION TURBINE

Fuel ignites and the products of the combustion are forced into the__.

TURBINE

COMPRESSOR

COMBUSTION CHAMBER

EXHAUST

In ideal Brayton Cycle the compressed air then runs through a combustion chamber… burned heating that air- a constant pressure process, since the chamber is in open

ISENTROPIC PROCESS

ISOBARIC PROCESS

ENTROPHY PROCESS

A device that consists of a spring mass system is primarily used … well below the machine is natural frequency and that of the spring.

PROXIMITY PROBE

SEISMIC PROBE

VIBRATION SENSOR

BORESCOPE

Use to prevent the gas from leaking through the space between a rotating…thus reducing the efficiency and it also prevents oil in the gearbox from the starter, fuel pump, and auxiliary drive pad.

CARBON SEAL

RUBBER GASKET

FRICTION REDUCER

MAGNETIC FIELD

This seal allows a small amount of seal pressurization air to leak into the… preventing oil leakage.

CARBON SEAL

MECHANICAL SEAL

LABYRINTH SEAL

TANDEM SEAL

In 1st stage of ideal brayton cycle, pressure will increase and the volume

CONSTANT

REDUCED

INCREASE

ENROPY

Ambient air is drawn into compressor, where it is pressurized.

ISENTROPIC PROCESS

ISOBARIC PROCESS

ENTROPHY PROCESS

What is the electronic device to monitor the power and performance of the

INDICATOR CARD MEASUREMENT

DIGITAL PRESSURE MONITORING

MONITORING OF ENGINE CONTROL PARAMETERS

ENGINE PARAMETERS

A periodic back and forth motion of the particles of an elastic body or medium commonly resulting when almost any physical system is displaced from its equilibrium condition and allowed to respond to the forces that tend to restore equilibrium.

TORSIONAL

MOTION

FORCE

VIBRATION

The compressor idling speed of a gas turbine engine will increase

AT HIGHER AMBIENT TEMPERATURE

WITH HIGHER THAN SEA LEVEL DENSITY

AT ATTITUDES LOWER THAN SEA LEVEL

AT LOWER AMBIENT TEMPERATURE

The bedplate is the bottom-most portion of the engine which is the base of the engine and accommodates crankshaft bearings and A-frame.

TRUE

FALSE

A 4 stroke engine can be installed on the ship to produce electrical power and also to propel the ship.

TRUE

FALSE

In shaft revolution, transmitters located in the control room and geared to the propeller shafts.

TRUE

FALSE

The main cause of fatigue cracks known as tensile stresses should be minimized whenever possible, and the oil hole opening have wide and smooth radii.

TRUE

FALSE

Critical speed (nk) is the rotational speed at which acting dynamic forces cause a machine component.

TRUE

FALSE

Nautical miles are used to measure the distance traveled through the water.

TRUE

FALSE

The 4 stroke engines generally have smaller bearing overlap between the main and the pin bearings due to the larger stroke length.

TRUE

FALSE

The main cause of fatigue cracks known as oil holes is reduced when tensile stress are present, so the radii areas are often cold rolled to ensure that the fatigue strength in these areas are increased.

TRUE

FALSE

The 2 stroke engines are used for vessel propulsion and are bigger in size as compared to the 4 stroke engines.

TRUE

FALSE

Doppler shift uses the Doppler effect, which is the relative change in frequency of a wave when the source and the observer are in relative motion.

TRUE

FALSE

SURE BA TO? SURE NA SANA (QUIZ LAST TIME +Modul 5-6 (lastpart) and

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