Common Plumbing Processes Tools and Materials
Quiz by Tony Holt
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28 questions
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- Q1Galvanising the protective coating given to metals,is obtained by dipping the metal in:tinZincsolderaluminium30s
- Q2When a metal is annealed it is made:HarderBrittleSofterLess Malleable30s
- Q3When removing a bending spring from a sharp set the correct procedure is to:twist to tighten the coil of the springpull it straight outtwist to loosen the coil of the springstraighten the pipe as far as possible30s
- Q4Throat rippling on machine-made bends on copper pipe is most probably caused by :the machine not being levelpulling the bend too quicklyan incorrectly adjusted or badly fitted guidean uneven pull on the machine handle30s
- Q5To obtain a 300mm radius bend on 50mm diameter low- carbon steel pipe,the most suitable method would be to use:sand loading,hot,pin blockbending spring, hotsand loading,cold,bending ringrotary -type hydraulic bending machine30s
- Q6Which of the following materials has the highest rate of linear expansionaluminiumsteelcopperupvc30s
- Q7An alloy is a:solution of materialscompoundan oxide of materialsmixture of materials30s
- Q8To ensure a hydraulic bending machine gives maximum thrust it is essential that:machine is on a level basecorrect former is usedoil preassure is adjustedoil level is maintained30s
- Q9Which tool is used for cutting thin sheet metal:wheel cuttercold chisseltin snipsjunior hacksaw30s
- Q10Pressure should never be exerted on the side of a grindstone wheel because:uneven wear will occurthe stone may shatterredressing will require more frequentlythe motor will slow down30s
- Q11The set on a hacksaw blade is provided in order to:increase the tensile strength of the bladeallow the blade to cut on the backward strokegive the blade body clearance when cuttingmake the blade more flexible30s
- Q12on building sites it is the employer's responsibility to provide a transformer for use with a portable power tools having a voltage of:415v220v110v240v30s
- Q13The tool allowing a small adjustment used for threading small diameter rods is known as a :solid diesolid stocksplit stockcircular split die30s
- Q14The British Standard pipe threading is used for:oxy-acetylene apparatusboiler tappingsthin walled brass tubegas meter unions30s
- Q15A metal which can be readily be drawn into wire or rod is said to bemalleableductiletenaciouslustrous30s