__________________ tools do not require a grounding connection.
A. Isolated ground
B. Double-insulated
C. GFCI protected
D. Double-grounded
Answer: B
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The _____ arch is a flat arch of solider position brick.
A. multicentered B. jack C. semicircular D. Gothic
Within an atom, which of the following is a negatively charged particle that rotates around the nucleus?
a. proton b. neutron c. electron d. pluton
At a large number of universities, the departments that teach courses such as chemistry, biology, and zoology are housed in the College of _____________________
Fill in the blank(s) with correct word
Why are some titanium alloying elements called alpha stabilizers, while some others are called beta stabilizers? Why are zirconium and hafnium called sister elements of titanium?
What will be an ideal response?