A heating thermostat closes on a(n) ____________________ in temperature.

Fill in the blank(s) with the appropriate word(s).


decrease

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The volume of a cylinder is given by where r is the radius of the cylinder and h is the height. Assume the radius, in cm, is lognormal with parameters = 1.6 and = 0.04, the height, in cm, is lognormal with parameters = 1.9 and = 0.05 and that the radius and height are independent.

a. Show that V is lognormally distributed, and compute the parameters
b. Find P(V < 600).
c. Find P(500 < V < 800).
d. Find the mean of V.
e. Find the median of V.
f. Find the standard deviation of V.
g. Find the 5th percentile of V.
h. Find the 95th percentile of V.

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A(n) __________ is an unintended low-resistance path through which current flows around, rather than along, a circuit's intended current path.

a. grounded circuit b. open circuit c. short circuit d. grounding circuit

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All of the following are typical connector types for fiber-optic systems except ________

A) BNC B) FDDI C) LC D) ST

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Why do closed hydronic systems include pressure-relief valves, expansion tanks, and temperature and pressure-limiting devices?

A) Because the copper piping used in the system requires these measures B) Because freezing must be prevented and antifreeze may not be added C) Because building codes require certain controls on every system D) Because water expands and contracts as its temperature changes

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