The time-weighted average level of exposure to a toxic substance to which workers can be exposed continuously for either an 8-hr work day or a 40-hr workweek defines

Which of the following is an example of a poor or careless construction method involving weakness of the building frame?

A) Stockpiling heavy building materials that exceed the final design load on upper floors B) Construction of shear walls several floors below the lift-slab erection operation C) Removing supports before concrete has cured D) Removing temporary bracing before the building frame is complete

OSHA's ________ ________ Standards were designed to reduce employees' risk of exposure to infectious diseases

Fill in the blank(s) with correct word