Chlorine Study guides, Class notes & Summaries

______ means the Wake County department of human services director or his/her authorized representative. - CORRECT ANS Director _____ means the certified pool operator who is responsible for the daily operation of a public swimming pool - CORRECT ANS operator _____ means the owner of the swimming pool or the responsible management company - CORRECT ANS Owner _____ _____ means the interior of the fenced area around a swimming pool including the pool itself, toilets, bathhouses, equipme...

AQA AS CHEMISTRY 7404/2 Paper 2 Organic and Physical Chemistry Question Paper + Mark scheme [MERGED] June 2022 *JUN* IB/M/Jun22/E7 7404/2 For Examiner’s Use Question Mark 1 2 3 4 5 6 7 Section B TOTAL Time allowed: 1 hour 30 minutes Materials For this paper you must have: • the Periodic Table/Data Sheet, provided as an insert (enclosed) • a ruler with millimetre measurements • a scientific calculator, which you are expected to use where appropriate. Instructions...

CWB Welding Inspector Level 3 Exam Prep (Latest 2023/ 2024 Update) Questions and Verified Answers| All Modules Covered| 100% Correct| Grade A Q: Fluxes that can dissolve the oxides on Al are ............ Answer: Halide compounds ( Fluorine, chlorine, Bromine etc.) Q: Chlorine gas from a Chloride flux in presence of an arc can create poisonous gas called .......... Answer: Phosgene (COCL2) or Mustard gas produced by the reaction of chlorine and carbon monoxide in the prese...

Mark Scheme (Results) Summer 2023 Pearson Edexcel GCE In Chemistry (8CH0) Paper 02: Core Organic and Physical ChemistryEdexcel and BTEC Qualifications Edexcel and BTEC qualifications come from Pearson, the world’s leading learning company. We provide a wide range of qualifications including academic, vocational, occupational and specific programmes for employers. For further information visit our qualifications websites at or for our BTEC qualifications. Alternatively, you can get...

EPA 608 universal with correct Answers Refrigeration technicians who violate the Clean Air Act can: - After 1995, any supplies of CFC refrigerants to service existing units in the USA can only come from: - Refrigerant that is recovered can be returned to: Refrigerant can not be called "reclaimed" unless it: - . The EPA can require a technician to demonstrate their ability to perform proper procedures for recovering and/or recycling refrigerant. Failure to demonstrate competency can re...

to lower pH add: - Answer- muriatic acid carbon dioxide to increase pH add: - Answer- sodium carbonate sodium hydroxide sodium sesquicarbonate the acceptable pH range is: a) 6.8-7.0 b) 7.2-7.8 c) 7.0-7.4 d) none of the above - Answer- b) 7.2-7.8 the ideal pH range is: a) 7.4-7.6 b) 7.8-8.0 c) 6.8-7.4 - Answer- a) 7.4-7.6 free chlorine is a(n): a) oxidizer b) stabilizer c) active disinfectant - Answer- c) active disinfectant it is common practice to maintain free chlor...

EPA 608 CORE Exam Questions and Answers (2022/2023) (Verified Answers) Graded A+ What characteristic or characteristics of CFCs make them more likely than other chlorine compounds to reach the stratosphere? Dont disolve iin water Each chlorine atom in the stratosphere can destroy how many ozone molecules? 100,000 ozone molecules Which refrigerant contains a CFC? R500, R12, R113 or R11? Theyre all CFC's HYDROCHLORIC FLORICCARBON (HCFC) refrigerant contain? Hydrogen, chlorine, flouri...

Milady Chapter 21 Workbook Exam Questions With Complete Solutions 1. How often do clients who color their hair usually visit the salon? - CORRECT ANSWER Every 3-12 weeks 2. One of the most creative, challenging, and inspiring salon service is __________. - CORRECT ANSWER Haircoloring 3. Haircoloring has the potential for being one of the most __________ areas in which a stylist can choose to work. - CORRECT ANSWER Creative 4. List the reasons why a cosmetologist sho...

Wastewater Practice Test (Florida) English Exam Questions And Answers According to FDEP chapter 62-600.440 (4) (b) FAC, basic level disinfection is described as: - ANS A chlorine residual of 0.5 mg/L for 15 minutes at peak hourly flow FDEP chapter 62-604.550 (a) FAC, requires a wastewater spill shall be verbally reported to the state warning point no later than: - ANS 24hrs from discovery What is the 'rule of thumb' regarding pump packing? - ANS Never put rings of new pack...

Water Distribution 1 Questions and Answers 100% CorrectWater Distribution 1 Questions and Answers 100% CorrectWater Distribution 1 Questions and Answers 100% CorrectWater Distribution 1 Questions and Answers 100% CorrectHead is measured in - ANSWER-feet A plat is - ANSWER-A map Which type of valve will prevent the collapse of a pipe - ANSWER-Air-and-vaccume relief valve The highest degree of protection of a coated steel pipe is - ANSWER-cathodic protection At which time of day is the...

A refillable refrigerant cylinder must not be filled above ______ of its full capacity. - Answer 80% Ozone layer absorbs and scatters ________ from the sun - Answer Ultraviolet light An award of up to ______ may be paid to a person supplying information that leads to a penalty against a technician who is intentionally venting. - Answer $10,000 Since ________, it is no longer legal for CFCs to be manufactured or imported into the United States - Answer Jan 1, 1996 R-134a is a chlorine...

Depth markings should be - ANSWER clearly visible by people in the water. Wading pool and spa drains must be - ANSWER anti-vortex AND secured. Pool drains must be - ANSWER secured and fastened with screws if holes are present. If at any time the filter equipment, chemical feed system, pump stops working, or the main drain cover has been removed or is broken, the pool must - ANSWER be closed immediately Pool must have - ANSWER 1.0-10.0ppm Free Chlorine & 2.0-10.0ppm Bromine Wading ...