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WorksheetsMain Laying
Total questions: 14
Worksheet time: 7mins
How thick is the cement lining in a new ductile pipe
1/8 of an inch
2/8 of an inch
3/8 of an inch
4/8 of an inch
What type of fitting would you use to repair a section of polyethylene pipe.
Aqua grip fitting
V. J. Coupling
Electro-Fusion Coupling
Repair Clamp
What is the percentage of Sodium Hyperchlorite used to clean pipes and fittings with
0.2 %
0.4 %
0.1 %
0.3 %
On a flange pipe, how many bolts are in a standard quadrant sequence.
6
4
9
8
What type of pipework would you use in contaminated ground.
P.V.C
Ductile
Cast
Barrier pipe
What material should you use before laying pipework into an excavation.
Clay
Concrete
Pea Gravel
Stone
What defect do you need to look for before choosing to use any pipework.
Splits
Dents
Holes
Ovalty
What PPE would you need to wear before working on Ductile Iron pipework.
Safety Glove
Safety Goggles
Safety Boots
Hard Hat
Hi-Visibility Clothing
What are the consequences of not maintaining a safe system of work
Traffic Delays
Cost of lost time
Damage to other Utilities
Missed deadlines
Name the fitting use to join two pieces of Ductile Iron pipe together.
Flange Adaptor
Aqua Grip
V.J Coupling
Elecro-Fusion Coupling
List 5 checks you would make on a length of Ductile Iron pipe before deciding it was suitable for use ?
Correct size
Cracks
End caps
Correct length
Corrosion free
What is a self anchored joint ?
A joint that is resistant to being pulled apart by internal thrust, ground movement or pipe movement ?
A joint that has a rubber in
A joint that is Black
A joint that is Blue
List 3 pieces of cutting equipment suitable for cutting ductile iron pipe ?
Wheeled cutter
Disc cutter
Keel cutter
Fein cutter
What would be the consequence of not taking into consideration internal thrust within a pipeline ?
pipes will move and joints will separate causing leakage and lose of pressure. Consequential damage to ground and building could occur ?
Pipes will not join
Joint will be damage
Joints will not work
