Atmospheric pressure is approximately ____________________ mm Hg

Which of the following is an example of a poor or careless construction method involving sequencing?

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

Benzene and benzidine are examples of known or suspected:

A) Group II heavy metals. B) teratogens. C) immunosuppressive agents. D) carcinogens.