3-10.Forms must be designed to meetwhat weight factor?1.The weight of crew membersthey must support2.The weight of the concretethey must support3.The weight of the equipmentthey must support4.The total weight to whichthey may be subjected3-11.Earth, metal, lumber, plywood,and fiber are the most commonlyused types of form material.1.True2.False3-12.The majority of all formworkinvolves concrete. Concreteweighs a total of how manypounds per cubic foot?1.1002.1253.1504.1753-13.For each inch of slabthickness, concrete slabs placea total load of how many poundsper cubic foot on the formwork?1.12.5 pounds per square foot2.14.5 pounds per square yard3.15 pounds per cubic inch4.40 pounds per cubic yard3-14.In pounds per square foot ofhorizontal projection, what isthe minimum recommendedconstruction live loadprovision for the weight ofcrew members and equipment?1. 102. 203. 504. 753-15.3-16.When powered concrete buggiesare used in concreteoperations, what is the minimumconstruction live loadrecommended for use?1.65 psf2.75 psf3.85 psf4.95 psfWhat bracing technique is mostoften used to brace formsagainst lateral pressure?1.Attaching vertical platesbehind the wales2.Attaching horizontalplywood sheets3.Nailing a diagonal memberand a horizontalmember to a stud or wale(the diagonal member shouldbe at a 45-degree angle tothe horizontal member)4.Nailing plywood sheets andstuds to the wales3-17.Which of the following factorsdoes NOT have an effect onlateral pressure?1.The consistency of theconcrete2.The amount and location ofreinforcement3.Vibration4.The sulfate content3-18.You have been given theassignment of determining themaximum concrete pressure for aform. The rate of placement is5 feet per hour and thetemperature is 70 degrees.What is the maximum concretepressure for the form?1.600 psf2.700 psf3.800 psf4.900 psfNRTC - 16

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