Hot water 2
Quiz by Brett Sweet
Feel free to use or edit a copy
includes Teacher and Student dashboards
Measure skillsfrom any curriculum
Measure skills
from any curriculum
Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.
With a free account, teachers can
- edit the questions
- save a copy for later
- start a class game
- automatically assign follow-up activities based on students’ scores
- assign as homework
- share a link with colleagues
- print as a bubble sheet
39 questions
Show answers
- Q1Which one of the following pieces of information will be provided by the installation plan?The expected completion dateThe dwelling's position on the estateThe order in which work should take placeThe position of the hot water pipes and valves in a dwelling.60s
- Q2The water supply (water fittings) regulations 1999 lay down:The guidance for internal hot and cold water systems only within a dwelling.The guidance for good practice when installing hot and cold pipework in a dwellingThe regulations that cover hot water systems onlyThe regulations covering all internal and external hot and cold water systems for dwellings60s
- Q3Which one of the following hot water components should be fixed using flexible connections?Booster pump for a showerIndirect hot water cylinderExternal bib tap.b. Shower mixer valve60s
- Q4A rigid pipework hot water system has a working pressure of 4bar. At what pressure should the pipework be tested for soundness?1bar for 60 minutes4bar for 30mins then 6bar for 15 minutes.1½ times the working pressure for 15 minutes6bar for one hour60s
- Q5To prevent electrolytic corrosion taking place in a system, where can the magnesium rod be placed?The circulatorThe open vent.The cold water storage cisternThe hot water cylinder60s
- Q6Guidance on the installation procedures for domestic hot water systems can be found in:Domestic Water Act 2007Local Authority Regulations.BS EN 806 parts 1-5Specification of work60s
- Q7In a customer’s property, the CWSC supplies both the hot and cold water systems. The minimum size of this cistern is:230 litresTwice the size of the domestic hot water cylinder100 litresEqual to 48 hours’ worth of water60s
- Q8Which of the following appliances is most likely to offer the customer low pressure at a hot water outlet?Combination unitIndirect cylinder.Combination boilerDirect cylinder60s
- Q9What is this item?Pressure/temperature relief valveDouble check valveStop valveBlending valve.60s
- Q10If hard water is allowed to be heated above 65C, what could be the consequence in the system?The efficiency could be affected by limescale.The pressure relief valve would openLegionella could growThe blending valve would fail to work60s
- Q11To overcome a dead leg for a hot water draw-off point, what course of action could be taken?Install secondary circulationInstall a more powerful circulatorIncrease the size of the hot water cylinderIncrease the temperature on the cylinder thermostat.60s
- Q12What is used at a basin outlet to prevent contamination of the water system?AUK3 air gapAUK2 air gapAUK4 air gap.AG air gap60s
- Q13A customer has intermittent flow of hot water from their bath tap – what is the most likely cause of the problem?Too much head pressureToo little head pressureFaulty float operated valve.Air lock60s
- Q14What is the primary function of the open vent on a domestic hot water system?To balance the feed from the CWSC.Allow hot water to be distributed at a controlled pressureTake up a hydraulic shuntSafety relief pipe60s
- Q15To prevent the risk of legionella forming in a dead leg it should be:As short as possibleAlways heated to above 50C.Disinfected annually under a PPM programNo longer than 2.5 metres, as stated in BS670060s
