CSLB B LICENSE GENERAL CONTRACTOR 330 EXAM QUESTIONS AND ANSWERS|49 PAGES

If unused mortar stiffens due to hydration of cement, what must you do? - ️️Discard the mortar What minimum time must you wait before caulking or grouting new tiles? - ️️24-48 Hours How long should you wait before installing tile on a shower pan? - ️️24 Hours Unstable dry rock, angular gravel, sandy loam, and cohesive soils having compressive strengths greater than 0.5 and less than 1.5 tons/sq ft (tsf), are typical examples of: - ️️Type-B Soils If 65 street lights are fed by a 2275 volt series circuit, what is the voltage across each light? - ️️35V In a series circuit, the total voltage is divided equally. For safety reasons, the maximum simple slope of an excavation, up to 20 ft deep, in Type-B soil is: - ️️1:1 (45°) A Pittsburgh joint is used in: - ️️HVAC ductwork The drain for a pressure relief valve on a water heater should be extended to: - ️️The outside of the building What is the minimum slope toward the drain of a shower pan? - ️️1/4" per foot (2%)