1Granite is an example of:AMetamorphic rockBSedimentary rockCArtificial stoneDIgneous rockView AnswerDiscussWorkspaceReportSaveEasy
2Seasoning of timber is done to:AChange its colourBIncrease its weightCReduce its moisture contentDMake it brittleView AnswerDiscussWorkspaceReportSaveEasy
3The process of grinding cement raw materials with water is the:ADry processBHydration processCWet processDSemi-dry process onlyView AnswerDiscussWorkspaceReportSaveEasy
4The specific gravity of ordinary Portland cement is about:A3.15B1.5C4.5D2.0View AnswerDiscussWorkspaceReportSaveMedium
5Which compound of cement contributes most to its ultimate (later) strength?AGypsumBTricalcium aluminate (C₃A)CDicalcium silicate (C₂S)DIron oxideView AnswerDiscussWorkspaceReportSaveEasy