In the accompanying figure, the item identified as number 4 identifies materials made of ____.
A. aluminum and magnesium
B. steel
C. brass, bronze, copper, and compositions
D. cast iron
Answer: A
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In order to solve for an unknown angle of a right triangle where neither acute angle is known, at least ____________________ side(s) must be known.
Fill in the blank(s) with the appropriate word(s).
One reason for using an extended plenum system is to ____.
A. save materials B. reduce the velocity of the air as the air reaches the last takeoffs on the extended plenum C. prolong the main plenum closer to the farthest supply register D. keep the noise level low
In the circuit branch below, with current and node definitions as shown, the black (negative) lead of an ideal voltmeter is attached to node "A" and the red (positive) lead is attached to node "B". If the voltmeter reads ?5V, what is the value for I, given the current direction shown in the diagram, if R=1k??
A. 5 A B. ?5 mA C. 5 mA D. ?5 kA E. ?5 A
Match the temperature in degrees Fahrenheit with the correct equivalent Celsius temperature.
A. 392°F B. 59°F C. 122°F D. 14°F E. 95°F F. 176°F