Basic System Revision Questions Flashcards

1
Q

What is the definition of a system

A

It is a series of and inconnected pipes that will deliver a substance from one point to another

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2
Q

What are the two types of system and give an example of each

A

Open loop system is a fuel system

Closed loop sysytem is a fresh water cooling system

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3
Q

Stat three methods of mesuring the level of a tank

A

-Indicator gauge
-Sounding tube
(dip tape & conversion chart is used with it)
-Glass gauge

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4
Q

State the purpose of a strainer and what it may be constructed from

A

The purpose is to remove large , coarse particals from a system.

Its is also made from metal plates with holes in them.

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5
Q

Give examples of materials used in pipework and give a example of for each.

A

Copper pipes - used for domstic fresh water system

Copper nickel - used for lub oil system

Brass - used for casting

Plastic - used for sewage and pre-wet

Phosphor bronze - used for high presure salt water system (HPSW)

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6
Q

What would need to be considered when selecting a Material for a seal

A

The system working pressure

The fluid being used

Temputeres involved

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7
Q

Give examples of materials used to manufacture seals

A

Rubber , cork , papper , leather , copper

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8
Q

State examples of seals used

A

Mechanical seals

Keelering couplings

Gland packing

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9
Q

State six types of valve

A

Globe valve

Gate valve

Flap valve

Sauders valve

Ball seasted cock

Relief valves

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10
Q

Explain the function of a pressure relief valve

A

It is placed in a system to protect against over pressurisations

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11
Q

Explain the function of a non-return valve

A

Allows substances through without obstruction unless a reversal of flow or pressure force which forces
the valve to shut

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12
Q

State two diffrent types of non-return valve

A

Flap Valve

Piston valve

Globe valve

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13
Q

What are the two main types of pump and how do they differ

A

Dynamic pump
Low pressure , high volume

Positive pump
High pressure , low volume

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14
Q

A gear pump is what type of pump

A

Positive displacment pump

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15
Q

State four system indicators

A

Pressure gauge & vaccum gauge

Tachometers

Thermometers

Flow meters

Voltage meters

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16
Q

What is the purpose of a tachometer

A

It is used to measure the speed of a moving body or substances

17
Q

State 3 types of thermometers

A

Thermometer

Standerd pockets

Sheathed or cased thermometers

Clock

18
Q

What is the purpose of a filter and what may be used in its construction

A

They remove finer particals used in a higher standard of clenillness

19
Q

If a filter becomes blocked what will happen to the pressure on the supply and dicharge side

A

The pressure will increase on the supply sode and decreasses pressure on the discharge side

20
Q

What is the purpose of the pressure control valve

A

To maintain system pressure at designated set level

21
Q

What is the purpose of rod gearing

A

It allows a valve to be shut manullay from a remote location

22
Q

What is the purpose of an accumulator and what types may be used

A

It is a device in which potental energy is held under pressure in the form of a compressed gas or spring

Types are

  • bladder bag
  • spring
23
Q

State what is a header tank

A

It is a reservoir to top up a tank or system

24
Q

Explain what a service tank does ?

A

It is a reservoir for clean, water free fuel

25
Q

What does drain tanks do ?

A

Drain tanks collects oil returning from a system and acts as a reservoir

26
Q

Explain a content gauge

A

It is a indicater on how much liquid reamians in a tank

27
Q

What is the purpose of a sounding tube

A

To allow us to measure the depth of liquid in a tank

28
Q

What are used with the sounding tube ?

A

Dip tape

Conversion chart

29
Q

What does dip tape do

A

It measures the height of liquid in a tank 

30
Q

What is a metalic filter used for

A

It is used to remove coarses particals of contamination from with in a system

31
Q

What is a absorbent filter used for

A

A absorbent fillter is used for removing finer particals used in a higher standard of clenillnes