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Basic Systems Flashcards

1
Q

A system is a series of … that with deliver a … from one point to another

A
  1. Components
  2. Substance
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2
Q

There are 2 types of system - … Loop and … Loop

A
  1. Open
  2. Closed
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3
Q

With an open loop system, the working fluid is …, e.g. fuel system

A

Consumed

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4
Q

With a closed loop system, the working fluid is … e.g. fresh water cooling system

A

Re-used

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5
Q

Name 3 different type of Tank?

A
  1. Header
  2. Service
  3. Drain
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6
Q

Header Tanks - These are used as a … to top up a tank or service system

A

Reservoir

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7
Q

Service Tanks - These are used as a reservoir for … and … … supply of fuel

A

Clean and water free

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8
Q

Drain Tanks - These are used to collect … … from a system

A

Oil returning

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9
Q

Name 4 different Tanks Gauges?

A

Contents Gauge
Sounding tube
Dip tape and conversion chart
Gauge glass

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10
Q

Strainers and used to remove … and … …from a system

A

Large and coarse particles

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11
Q

The type of material used in the systems pipe work depends on? (3parts)

A
  1. The type of service being applied
  2. The operating temperature
  3. Other types of materials used within the system
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12
Q

What are Phosphor bronze pipes used for?

A

High pressure salt water systems

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13
Q

What are copper pipes used for?

A

Domestic fresh water systems

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14
Q

What are copper nickel pipes used for?

A

Lub oil systems

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15
Q

What are brass pipes used for?

A

Castings, such as taps, valves, bodies, junctions, unions

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16
Q

What are plastic pipes used for?

A

Sewage and pre wet

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17
Q

What type are seal’s used depends on? (3 parts)

A
  1. System working pressure
  2. Fluid being used
  3. Temperature involved
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18
Q

What seals can be made from? ( 6 parts)

A

NAF
Paper
Leather
Cork
Copper
Rubber

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19
Q

Example of seal used in the Royal Navy are? (3parts)

A

Mechanical seals
Kneeling couplings
Gland Packing

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20
Q

Valves and cocks provide a method of … … …of a liquid, or gas, and as a means of … the various systems and components on board a ship or submarine

A

Controlling the flow
Isolating

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21
Q

A pressure relief valve prtotects the system from … ?

A

Over pressurisation

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22
Q

What does a Non-return valve do?

A

Prevents flow reversal

23
Q

2 examples of a non-return valve?

A

Flap valve
Piston valve

24
Q

Definition of a reducing valve?

A

Valves accepts a high pressure entering it and allows the fluid or gas to expand allowing it to reduce in pressure.

25
Name 8 different valve types
Globe valve Gate valve Flap valve Saunders valve Ball seated cock Pressure relief valve Reducing valve Non-return valve
26
There are 2 main groups of pumps … displacement and … displacement
Positive Dynamic
27
2 methods of physically displace the fluid?
Reciprocating (up and down) e.g piston Rotary (round and round) e.g gear
28
A type of positive displacement pump is a … … pump
Gear wheel
29
2 example of a dynamic displacement pump are … and …
Centrifugal Axial
30
Electric motors convert … energy into … motion
Electrical Mechanical
31
There are two main groups of pumps?
Dynamic displacement Positive displacement
32
3 types of thermometers you may encounter?
Fixed brass Standard pocket Clock / dial face
33
The thermometer, either … or … …, is inserted into a recess within the plug
Standard Fixed brass
34
Where possible … or … thermometers are used in pockets
Standard or cased
35
Thermometer pockets are to be painted with warning … and black stripes
Yellow
36
To aid the transfer of heat from the system, or equipment, to the thermometer the pocket is filled with a … …, usually engine oil
Transmission filter
37
When taking a temperature reading with a thermometer located in a pocket it must be removed quickly and read immediately. The reading must be taken with the thermometer at … … to ensure an accurate reading is obtained
Eye level
38
Filters are used to remove … or … … from a system
Small or fine particles
39
These filters include 2 types
Metallic Absorbent
40
Metallic filters are made from … …and … … …or gauge screens
Wire wool Thin steel plates
41
Metallic filters are used to remove … Particles of contamination from within the systems
Coarser
42
When the metallic filters become blocked they are removed, … and then returned to the system
Cleaned
43
Absorbent filters are made from …, …, … … and other similar materials
Paper Cloth Felt yarn
44
Absorbent filters remove … particles than metallic filters and are used in systems where a higher standard of cleanliness is required e.g. fuel systems
Finer
45
When absorbent filters and serviced they are … with a new one. The discarded filters much be …
Replaced Disposed of correctly
46
If the absorbent filter becomes blocked the pressure will … on the discharge side of the filter
Reduce
47
The pressure control valves … … …at a designated set level.
Maintains systems pressure
48
A pressure control valve will .. (monitor) … pressure and open and close as required to … the set system pressure
Sense Outlet Maintain
49
Rod gearing allows a valve to be shut manually from … (…) location
Another Remote
50
A pressure relief valve is placed in a system to protect against … …
Over pressurisation
51
Pressure control valves … … … At set levels
Maintain system pressures
52
An accumulator is a device in which … energy is held under pressure in the fir of compressed gas, spring or by a raised weight to be used to every a force against a fluid.
Potential
53
Accumulators can be used as a … / … … / …
Surge Pulsation dampener Absorber e
54
3 accumulater types include?
Piston Bladder Bag

Basic Systems & Diesel Engines (3 decks)

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