SPONSOR CPD PROGRAMME | HEATING AND COOLING Module 140 Name (please print)................................................................................. January 2019 Job title....................................................................................................... 1.In the example in Figure 1, how much is the pump power reduced between maximum and minimum flow? Organisation. ............................................................................................ A By less than 10% of the maximum power Address ..................................................................................................... B By between 10% and 30% of the maximum power C By approximately 50% of the maximum power D By between 60% and 90% of the maximum power E By more than 90% of the maximum power 2.Which one of these is unlikely to be true in the illustrated application of the DPCV? A One side of the diaphragm is influenced by the pressure at the valve inlet B The diaphragm will modulate the pressure to maintain a ..................................................................................................................... ..................................................................................................................... Postcode ................................................................................................... Email .......................................................................................................... Are you a member of CIBSE? If so, please state your constant flow through the load C The DPCV closes as the differential pressure across the diaphragm increases D The pressure in the branch flow pipework at the exit of the FODRV affects one side of the diaphragm E The valve spindle position is modulated by being directly connected to the diaphragm 3.In the PICV, which one of these is the primary purpose of the pressure test points? A To provide, indirectly, feedback of flowrate to the building management system B To allow the measurement of the available differential pressure across the whole PICV as a check when commissioning and testing membership number: ............................................................................ The CIBSE Journal CPD Programme By participating in this CPD module, you consent to sharing your details with Hattersley. Hattersley may contact you via email and/or telephone with further information and technical insight on its services. You have the right to opt-out from such communications at any time. I understand that I will receive marketing communications from Hattersley after completing this module, please tick here: By entering your details above, you agree that CIBSE may contact you with information about CPD and other training or professional development programmes, and about membership of CIBSE, if you are not a member. Go to www.cibsejournal.com/cpd to complete this questionnaire online. You will receive notification by email of successful completion, which can be used to validate your CPD records. Alternatively, fill in this page and post it to: N Hurley, CIBSE, 222 Balham High Road, London, SW12 9BS C To provide a pressure differential to set the valve to the required maximum flowrate at commissioning D To be able to set the minimum flowrate using the lookup value of pressure differential E To test for reversed flow through the valve assembly 4.What is the valve characteristic typically used as the control element of a PICV? References: 1 CIBSE Knowledge Series KS7 Variable flow pipework systems, CIBSE 2006. 2 Supplement to CIBSE Knowledge Series KS7 Variable flow pipework systems: valve solutions, CIBSE 2009. 3 BG 12/2011 Energy Efficient Pumping Systems A Design Guide, BSRIA 2012. 4 CIBSE Commissioning Code W: 2010 Water distribution systems, CIBSE/BSRIA 2010. A Equal percentage B Hyperbolic C Linear D Parabolic E Quick opening 5.Which CIBSE Knowledge Series supplement provides an introduction to PICVs? A KS1 B KS3 C KS5 D KS7 E KS9 50 January 2019 www.cibsejournal.com CIBSE Jan19 pp47-50 CPD 4.indd 50 21/12/2018 15:13