Bladder tanks used in private water systems are pressurized through the use of a _____.
a. Schrader valve
b. Schneider valve
c. Switzer valve
d. Statler valve
a. Schrader valve
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Which batteries use solid electrolytes?
A) Lithium-ion B) NiMH C) NiCd D) Lithium-polymer
The public's concern that cellular radio towers may cause illness to residents living close to the tower is hard to justify because:
A) the signal power is so low B) actually, the root of this question is wrong, cellular radio towers are known to cause blood dyscrasias in susceptible nearby residents C) the power stays high above the ground, well above the height of humans D) in this modern age, most people don't stay at home very much, so the exposure is quite limited
Three methods to reduce or eliminate workplace safety hazards include: PPE, engineering practices, and ___________.
A. requiring safety glasses B. painting yellow stripes C. management practices D. learning to sky dive
The height of root reinforcement, or melt through, is dimensioned ____ the melt-through symbol.
A. to the left of B. to the right of C. within D. above