Understand the scientific properties and principles of water
Quiz by Ricky Fleet
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27 questions
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- Q1What is the freezing point of water at sea level?0 Deg C75 deg C100 deg C25 deg C30s
- Q2Which of the following values reflects the pH value for pure water?1141730s
- Q3The limescale build-up in systems is caused by...Soft waterTemporary hard waterPermanently hard waterAcidic water30s
- Q4A change of state may occur when water is heated to...75 deg C50 deg C100 deg C25 deg C30s
- Q5The build-up of limescale in a hot water system could be noticed by...The hot water temperature being hotterThe hot water recovery time decreasingThe hot water flow rate increasingThe hot water temperature being cooler30s
- Q6“Freezing” is best described as which one of the following?Gas into a liquidSolid into a gasLiquid into a solidSolid into a liquid30s
- Q7“Evaporation” is best described as which one of the following?Liquid into a solidSolid into a liquidGas into a liquidLiquid into a gas30s
- Q8When water is heated it decreases in what?AreaDensityAcidityVolume30s
- Q9Adding a glycol mixture to water will result in...The freezing point being lowerA decrease in flow rateAn increase in flow rateThe freezing point being higher30s
- Q10The relative density of a solid is determined by comparing it to the same volume of which other substance?IronAlcoholMercuryWater30s
- Q11What is the temperature of water at maximum density?20 deg C4 deg C0 deg C40 deg C30s
- Q12Latent heat can best be described as energy released or absorbed when which one of the following occurs?Change of densityChange of volumeChange of temperatureChange of state30s
- Q13Sensible heat can best be described as energy released or absorbed when which one of the following occurs?Change of densityChange of temperatureChange of volumeChange of state30s
- Q14Expansion of water would occur in which of the following situations?Pressure increasedHeatingDrawn offAccelerating30s
- Q15Water falling on sandstone would become which of the following types of water?AcidSoftNeutralHard30s