Technician A says the third prong on an electrical plug increases the tool’s efficiency by providing extra current to the tool when it is loaded down during heavy use. Technician B says the third prong is a positive ground to protect the operator in the event of an internal short inside the tool. Who is correct?
A. Technician A only
B. Technician B only
C. Both Technicians A and B
D. Neither Technician A nor B
B. Technician B only
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Thomas Jefferson's first major foreign-policy decision in 1803 was to
A. purchase Louisiana from France. B. send a naval squadron to the Mediterranean to end the blackmailing and plundering of U.S. merchant ships by the Barbary pirates of North Africa. C. drive the British out of the northwest forts. D. purchase Florida from Spain. E. form an alliance with Spain.
The ____ is a "throwaway" copy of the DNA that leaves the nucleus.
Fill in the blank(s) with the appropriate word(s).
One BTU is equal to ________ calories.
A) 212 B) 32 C) 100 D) 252
The type of form system that can be as wide as 50 feet are _____.
a. slip forms b. job-built wall forms c. gang forms d. insulating concrete forms