quadratic compositionquadratic convergenequadratic formquadyquagmirequalitative influence linequality controlquality of flowquality of traffic flowquality of waterquantity surveyorquarryquarry brickquarry dustquarry rum rockquarry run rockfillquarry sapquarry stonequarter space landingquarteringquartiztequartizte sandstonequartzquasi permanent combinationquasi smooth flowquayqueen closerquenchquenchedquenched and tempered steelquenchingquenching of steelquetta bondqueuequeue dischargequeue lengthquick clayquick conditionquick setting agentquick setting cementquick shear testquicklimequicksandquicksetquilt isolatorquionquiscent state