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30 Cards in this Set
- Front
- Back
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Copper tube R250 half hard is also referd to as? |
Grade X |
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Approval of fitting for use on water sevices is authorised by who? |
The water regulations advisory scheme (WRAS) |
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What size is the cold water supply pipe to a domestic property? |
15mm |
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Which fitting should be position directly after the stop cock on entry to the building? |
Drain off tap |
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Which material is suitable for a domestic water service? |
Plastic or copper |
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Which type of screw should be used in a bathroom? |
Non-ferrous |
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Which fixing is best suited for securing to plaster board? |
Spring toggle bolts |
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When fitting components to a plastic cistern, what sealing method should be used? |
Plastic washer |
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What is the maximum horizontal clip spacing for 15mm copper tube? |
1.2mtrs |
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What is the tape called to seal threaded joints? |
PTFE |
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Copper tude R290 is also known as? |
Grade Z |
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Grade Y copper tube suitable for underground installation is also known as? |
R250/220 soft coil |
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Grade W copper tube used for micro-bore heating installations is also known as? |
R220 soft coil |
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The main methods of jointing copper tube are: |
Compression joints Solder capillary joints Push-fit joints |
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The types of compresssion joint are: |
Manipulative - type B Non-manipulative - type A |
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The types of soft solder joint are: |
End feed Integral solder ring |
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Methods of jointing LCS are: |
Compression joints Threaded joints Welded joints |
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Methods of jointing plastic tube are: |
Compression joints Push fit joints Solvent weld joints |
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The methods of cutting a thread are using? |
Stocks and Dies Electric pipe threading machine |
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Threaded pipe joint sealing methods include: |
PTFE Thread cord Pipe jointing compound and Hemp |
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Draw hand & stand bending machine, internal and external bending springs are all method of bending which pipe material? |
Copper tube |
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Low carbon steel tube is bent using a? |
Hydraulic bending machine |
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When bending tube and pipe using a bending machine the pipe is bent around a ................... aided by the use of ................. or corner posts. |
Former Guide |
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Due to the elasticity of the metal you need to bend LCS 5 degrees past 90 to allow for? |
Spring back |
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Templates, set wires and hinged rules are used to check? |
Bend angle |
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Heating copper tube to a cherry red colour and the quenching in water to soften it is known as? |
Annealing |
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Solder fills the gap between the fitting and the pipe through? |
Capillary action |
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An integral solder ring fitting has a raised ring which contains? |
Solder |
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Soft solder melts between? |
180 & 230 degrees C |
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Low carbon steel tube and fittings are graded? |
Light - colour coded brown Medium - colour coded blue Heavy - colour coded red |
