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Revision > Cooling Systems > Flashcards

Cooling Systems Flashcards

1
Q

Name of the machinery that warships use that generates heat during operation

A

White Metal Bearings

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2
Q

What is white metal used for?

A

Sacrificial component
Used to save more expensive components

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3
Q

What temperature do White metal rings melt at?

A

115°C

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4
Q

Example of what White metal protects

A

The shaft

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5
Q

White metal is an alloy called…..

A

Babbit

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6
Q

Babbitt is made up of what 4 materials

A

Tin
Antimony
Copper
Cadmium

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7
Q

Name the 3 failures caused by continuous rise in temperature

A

Siezing
Wiping it’s Bearings
Catching Fire

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8
Q

4 types of machinery included in the main Propulsion circulation system

A
  1. Controllable Pitch Propeller
  2. Main forced lube cooling
  3. Plummer Block emergency cooling
  4. Gas Turbine
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9
Q

In an emergency, _____ water can be used from _____

A

Salt
HPSWM

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10
Q

Who’s permission fo you need to use salt water from the HPSWM in an emergency?

A

MEO

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11
Q

Name the 2 types of machinery cooled by the system

A

Air Conditioning Plant
Diesel Plant / Generators

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12
Q

Salt Water PUMPS take water from……

A

Common Rail

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13
Q

Common Rail has a _____ to use a ________ to allow ___________ on the other side _______

A

Valve
Strainer
Maintenance
Strainer

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14
Q

What happens if pressure drops in a cooling system?

A

Connection to HPSWM can be opened for emergency cooling

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15
Q

What cools Diesel Engines?

A

Fresh Water

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16
Q

What is fresh water used to cool diesel Generators cooled by?

A

Salt Water in Heat Exchanges (Closed Loop System)

17
Q

What are the 2 reasons for Fresh Water Cooling?

A

Prevention of:
Salt Water Corrosion
Salt Water Contamination

18
Q

What happens if the Fresh Water Pump Fails?

A

The system is x connected to HPSWM but is only done in emergencies and with permission from the MEO

19
Q

Draw the Aux Circulation System

A

Draw the Aux Circulation System

20
Q

Draw the Main Propulsion Circulation System

A

Draw the Main Propulsion Circulation System

Revision (6 decks)

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