Scientific principles for domestic, industrial and commercial plumbing
Quiz by Ricky Fleet
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- Q 1/33Score 0This form of corrosion is generally caused by?29The inhibitor in the system being too strongFlux left in the tube after flushing outBad manufacturePosition of the electrolytic series table
33 questions
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- Q1This form of corrosion is generally caused by?The inhibitor in the system being too strongFlux left in the tube after flushing outBad manufacturePosition of the electrolytic series table30s
- Q2A metal that contains iron is...FerrousNon ferrousPlasticMagnetic30s
- Q3The two basic types of plastics are thermosetting and...Non-degradeable plasticLight plasticHeavy plasticThermoplastic30s
- Q4What distorts plastics?WaterHeatLightMoisture30s
- Q5Fireclay is used in the manufacture of...WC panPedestal and basinBathsBelfast sink30s
- Q6A good conductor of heat and electricity is...CoppedBrassPlasticLead30s
- Q7A method used to test compression is...SqueezingHittingBendingPulling30s
- Q8Which plastic is severely affected by direct sunlight?PolypropylenePVCuPolybutyleneABS30s
- Q9Which one of the following expands the most when heated?SteelLeadPVCBrass30s
- Q10Which one of the following metals is an alloy?CopperBrassIronLead30s
- Q11Which of the following types of stress is applied to a solid material to test for its tensile strength?TwistingCuttingPullingCrushing30s
- Q12Which one of the following shows the unit of measurement for specific heat capacity?Kj/Kg/°CKj/KgKg/M³M/°C30s
- Q13The ability of a material to resist bending, scratching, abrasion or cutting is its...Compressive strengthMalleabilityDuctilityHardness30s
- Q14A form of selective corrosion (often referred to as de-alloyng) that happens when zinc is leached out of brass is called?DeteriorationDepositionDezincificationDegredation30s
- Q15Corrosion that occurs in tubes and fittings of the fast flowing effects of fluids and gases is called...Pitting corrosionOxygen corrosionErosion corrosionGalvanic corrosion30s