Materials are toxic if:
A. They react violently with water or other chemicals.
B. They burn the skin or dissolve metals or other materials.
C. They exceed levels greater than 100 times that in drinking water.
D. They release cyanide gas.
Answer: C
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A 7-inch diameter milling cutter revolving at 115.0 revolutions per minute has a cutting speed of 108.2 feet per minute. What is the cutting speed in inches per minute?
What will be an ideal response?
If a relay starts the indoor fan in the cooling mode of a central air-conditioning system, it must be able to withstand the ____________________ of the fan motor on start-up.
Fill in the blank(s) with the appropriate word(s).
Pulse width (tW) is defined as:
A) the time interval between opposite points on the pulse. B) the time interval between identical points on the pulse. C) the time interval between changes in the pulse. D) all of these.
Which of the following statements is accurate?
A. A standpipe system may not be combined with an automatic fire protection system B. A standpipe system and a sprinkler system may never be installed in the same building C. The standpipe and the sprinkler systems may never share the same water supply D. The standpipe and the sprinkler systems may share the same riser piping