To reduce the amount of Portland cement in a concrete mixture, other materials must be substituted such as coal fly ash and ____.
A. ground granulated blast furnace slag
B. silica
C. common slag
D. limestone
Answer: A
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One reason that the condition of a significant segment of adult wage earners improved was
A. legal support gained by unions from the U.S. Supreme Court. B. the passage of minimum wage laws. C. the passage of laws restricting the use of strikebreakers. D. the enactment of immigration restrictions. E. the enfranchisement of the laboring man.
Which of the following statements are true?
A. Pneumatic tools that operate at pressures in excess of 100 pounds per square inch must be equipped with a special protective device. B. If compressed air is used for cleaning purpose on anything other than concrete forms, the compressed air pressure must exceed to more than 30psi. C. When a power-actuated tool misfires, it should not be held in the operating position. D. When storing oxygen cylinders, keep them at least 10 feet away from combustible materials and compressed gas cylinders.
Before clipping, the beef calf should be completely dry.
Answer the following statement true (T) or false (F)
For a truck driver to actuate an electromechanically-managed internal engine compression brake, all of the following switches would have to be closed EXCEPT:
A. driver dash control switch B. clutch engaged switch C. accelerator or fuel control switch D. service brake application pressure switch