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level 2 plumbing > plumbing science > Flashcards

plumbing science Flashcards

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1
Q

What is aluminium, is it non ferrous or ferrous

A

Non-ferrous

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2
Q

what is lead, non ferrous, or ferrous

A

non ferrous

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3
Q

what is zinc, non ferrous or ferrous

A

non ferrous

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4
Q

what is zinc, on ferrous or ferrous

A

non ferrous

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5
Q

what is polypropylene used for

A

.push-fit waste and overflow pipe
.cold water storage cistern

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6
Q

what is polybutylene used for

A

.push fit hot and cold installations
.central heating installations

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7
Q

is iron a non ferrous or a ferrous

A

ferrous

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8
Q

what is ABS?

A

.water supply-potable water for apartments,offices,commercial installation.
.solvent welded waste and overflow pipes

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9
Q

what is hardness?

A

the resistance of material to being cut, deformed or bent

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10
Q

what is toughness?

A

the amount of energy a material can absorb without breaking or fracturing.

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11
Q

what is shear strength?

A

the maximum force a material can withstand when being ripped.

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12
Q

what is malleability?

A

the amount of hammering and shapinga material can withstand without breaking, splitting or cracking. Malleability is particulary desireable in metals

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13
Q

what is ferrous metals?

A

ferrous metals contain iron, such as steel and cast iron.

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14
Q

what are non ferrous metals?

A

non ferrous metals are those that do not contain iron and they do not rust.

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15
Q

what is fireclay?

A

heavy-duty sinks, belfast sinks london sinks,cleaner sinks and butler sinks.

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16
Q

what is compressive strength?

A

the maximum force a material can withstand when being crushed.

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17
Q

what is elasticity?

A

the length that a material can be stretched.

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18
Q

what is heaviness?

A

the denseness of a material. A dense material will be heavy in relation.

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19
Q

what is strength?

A

the measure of how materials withstand heavy loads without breaking.

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20
Q

what is heat and electrical conductivity?

A

the measure of how well a material conducts heat or electricity

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21
Q

what type of water corrodes pipe work?

A

soft water

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22
Q

what temp is water maximum density?

A

4 degrees Celsius

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23
Q

how is soldering able to run a pipe?

A

capillary action

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24
Q

what are the two types of plastic categorys?

A

thermoplastics ,thermo-setting plastic

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25
Q

what is sensible heat?

A

when heat is directly applied to water,its temperature will rise untill it reaches his boiling point.

26
Q

what is latent heat?

A

changes of state are also a resullt to heat added but here, the added heat leads to a change.

26
Q

give 3 examples of thermal conductivity materials?

A

silver ,gold ,copper

27
Q

what are natural gas?

A

natural gas is the most widely used fuel for homes and business heating and cooking in the uk.

28
Q

what is TIN is it a ferrous or non ferrous?

A

non-ferrous

29
Q

what is a first class lever?

A

a first class lever is one where the fulcrum lies between the effort and the load in the seesaw.

29
Q

everything on earth and in space is made off a matter. Matter can exist in 3 states

A

solid liquid and gas

29
Q

give 3 examples of natural gas?

A

methane, ethane, propane

30
Q

what is third class lever?

A

a third class lever is one where the effort is between the fulcrum and the load.

31
Q

what is the property of solid?

A

solids have a fixed shape and cannot flow.

31
Q

what is second class lever?

A

a second class lever is one where the load is between the fulcrum and the effort.

32
Q

what is the property of liquids?

A

liquids flow and take there container

33
Q

what is the property of gases?

A

gasses flow and take the shape off their container

34
Q

what is radiation?

A

all objects will transmit and receive heat in the form off thermal radiation

34
Q

what are ferrous metals?

A

ferrous metals contains iron.

35
Q

what are non ferrous metals?

A

non-ferrous metals are those that do not contain iron.

36
Q

limescale build up is caused by?

A

temporary hard water

37
Q

what is the fuse size for a domestic appliance that has a power rating off 3kw?

A

13 amp

38
Q

conduction occurs by?

A

heat travelling through or along a solid material

39
Q

what will cause siphonage to occur?

A

suction off c

40
Q

on a incoming mains what would have the lowest pressure?

A

the float-operated valve to the cold water storage in the loft

41
Q

build up of limescale in a hot water system could be noticed by?

A

the hot water temperature being cooler

42
Q

what is the sinusoidal wave form?

A

AC electricity

43
Q

What would an anti-capillary groove in a lead weathering stop?

A

Water being drawn into the building

44
Q

Water being drawn into the building?

A

KJ/Kg/0C

45
Q

change of state may occur when water is heated to?

A

1000c

46
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53
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55
Q
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level 2 plumbing (2 decks)

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