The byproduct of coal processing is called coal slurry, or blackwater. Why is the storage of blackwater problematic?
a. It must be transported away from the storage site.
b. It must eventually be buried.
c. It is very toxic.
d. It increases air pollution through evaporation.
C
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Bimetal elements in room thermostats are usually _____.
a. copper-plated b. heat-treated c. spiral-wound d. made of steel
The bonding jumper for multiple disconnecting means is located _____.
a. on the supply side of the service disconnect b. between the equipment and the equipment grounding bus c. between the feeder panel and the equipment d. between the equipment and ground bar
Any volume of wood that equals 144 cubic inches is called a(n) ____________________ foot
Fill in the blank(s) with the appropriate word(s).
Let X represent the lifetime of a component, in weeks. Let Y represent the lifetime of the component in days, so Y = 7X. Suppose X ~ Exp(?).
a. Let 
be the cumulative distribution function of Y and let 
be the cumulative distribution function of X. Show that 
.
b. Show that Y ~ Exp(?/7).