Characterize the risk for a chronic daily exposure by the water pathway (oral) of 1.34 x 10-4 mg/kg/day of tetrachloroethylene, 1.43 x 10-3 mg/kg/day of arsenic, and 2.34 x 10-4 mg/kg/day of dichloromethane (methylene chloride).

Risk(tetrachloroethylene) = 7.236 x 10^-5

Risk(arsenic) = 2.145 x 10^-3

Risk(Dichloromethane) = 3.276 x 10^-6

Explanation:

Rick factor(oral) is cancer potency

Risk = slope factor x exposure

Risk(tetrechloroethylene) = 0.54 x 1.34 x 10^-4

Risk(arsenic) = 1.5 x 1.43 x 10^-3

Risk(Dichloromethane) = 0.014 x 2.34 x 10^-4

unlike the threaded fasteners which are used to clamp the machine members, power screws are used to transmit power. common applications of power screws are: screw jacks: to lift weight. lead screw of lathe: for axial movement of tool and its precise positioning.

answer:

constructing a building's framework requires a solid foundation

explanation: