11Heat is absorbed from the refrigerated space in the:ACondenserBEvaporatorCReceiverDCompressorView AnswerDiscussWorkspaceReportSaveEasy
12The expansion device in a domestic refrigerator is usually a:ATurbineBThermostatic valve alwaysCCapillary tubeDThrottle plateView AnswerDiscussWorkspaceReportSaveEasy
13Comfort air conditioning in summer typically aims for about:A24–25 °C and 50% relative humidityB0 °C and 100% RHC35 °C and 20% RHD10 °C and 90% RHView AnswerDiscussWorkspaceReportSaveEasy
14A refrigerator removes 3 kW of heat from the cold space using 1 kW of work. Its COP is:A1B0.33C4D3View AnswerDiscussWorkspaceReportSaveMedium
15COP of a heat pump is:AHeat delivered ÷ work inputBWork input ÷ heatCAlways less than 1DHeat absorbed ÷ heat rejectedView AnswerDiscussWorkspaceReportSaveEasy