What is the primary principle behind the operation of a purifier/separator on a ship?

Prelim Quiz 1: Auxiliary Machinery

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Jordan Marc Cozo
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Gravitational settling
Centrifugal force
Magnetic separation
Thermal expansion
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a purifier, where do the heavier contaminants like water and solids accumulate?
At the center of the bowl
Near the discharge valves
At the periphery of the bowl
In the motor assembly
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main function of the disc stack in some purifiers?
To generate rotational force
To increase the surface area for separation
To store clean fuel before discharge
To regulate the motor speed
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does a clarifier differ from a purifier?
A clarifier removes only solid particles, while a purifier separates solids, water, and fuel
A clarifier operates at lower speeds than a purifier
A clarifier does not use centrifugal force, while a purifier does
A clarifier is used for water separation, while a purifier is used for fuel separation
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is oil purification important for ship operations?
It improves the ship's speed by reducing fuel weight
It prevents contamination of fresh water supplies
It ensures clean fuel supply, improving engine efficiency and reducing maintenance
It helps in reducing the ship’s overall electrical consumption
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of a solid contaminant in oil?
Fuel dilution
Emulsified water
Metal wear particles
Entrained air
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the effect of emulsified water in lubricating oil?
It enhances the oil’s cooling properties
It improves the lubrication efficiency
It reduces the oil’s lubricating properties
It increases oil viscosity for better performance
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