PASGT (QUIZ LAST TIME)
What is the purpose of the Air control unit in a stern tube?
To help sealing the oil from forward and af
To help building up pressure for the lubricating oil
To minimize the friction
To provide efficient sealing in the stern tube
A type of cavitation that takes the form of a thin stationary sheet usually connecting at the leading edge of the blades.
Sheet cavitation
Cloud cavitation
Mist cavitation
Bubble cavitation
It seals the area between the stern tube and the propeller shaft
Stern glands
Labyrinth gland
Packing gland
Lip seal
It occurs when dissimilar metals are in contact in the presence of an electrolyte, such as water (moisture) containing very small amounts of acid.
Electrolytic corrosion
Galvanic corrosion
Corrosion
Localized corrosion
Controllable Pitch Marine Propulsion systems offer a wide range of advantages. Except for.
Durability
Flexibility
Economy
Manueverability
In case of fire in the scavenge space, What is the best procedure to follow on board the ship?
Immediately start reducing the RPM of the engine
Immediately extinguish the scavenge fire
Master all the crew
Follow the company procedures regarding scavenge fire
It is best practice to check all the parameters of a Gas Turbine before starting to prevent.
Abnormalities
Breakdown of the machineries
Mis-firing of the turbine fire
Fire
A pedestal used to provide support for a rotating shaft with the help of compatible bearings & various accessories. Housing materials is typically made of cast iron or cast steel.
Plummer Block
Tilting Pad
Thrust Block
Sealing Bearing
What is the purpose alarm system on board the ship?
To bring a malfunction to the attention of operators and maintenance personnel
To notify the engine crew for emergency situation in the engine room
To prevent future accident on board
To rectify the fault
The crankcase door relief valve is consisting of ____.
Spring loaded Valve
Spring Plate Valve
Spring Valve
Leaf Spring
It is the most common types of Propellers.
Conventional
Weedles
Cleaver
Three Blade Propeller
It is the formation of distinctive bubbles cavities in the propeller.
Bubble Cavitation
Lanmar Cavitation
Cloud Cavitation
Mist Cavitation
WHAT IS NUMBER 1
Stern Tube
Journal Bearings
Tailshaft
Thrust Shaft
WHAT IS NUMBER 2
Intermediate Shaft
Thrust Shaft
Tailshaft
Stern Tube
WHAT IS NUMBER 3
Journal Bearings
Thrust Shaft
Tailshaft
Intermediate Bearings
WHAT IS NUMBER 4
Thrust Shaft
Intermediate Shaft
Tailshaft
Stern Tube
WHAT IS NUMBER 5
Tailshaft
Thrust Shaft
Thrust Shaft
Stern Tube
WHAT IS NUMBER 6
Intermediate Bearings
Journal Bearings
Thrust Bearings
Stern Tube
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