Ok. Let's start with Question #7
"7. As far as the generator is concerned, in a series-resonant LC circuit( with no resistor) L, and C can be replaced by:
A. a single resistor with a value equal to L x C.
B. the value of C.
C. the value of L.
D. a straight piece of wire."
Take a look at this link on series resonant circuits. http://www.allaboutcircuits.com/vol_2/chpt_6/3.html
Now ask yourself what is the value of the circuit impedance, i.e. the resistance at resonance? Which of the answers best represents that value of resistance?
"11. When a capacitance is given as 6.3 x 10 E-6 farads, it can be written as:
A. 6.3 millifarads
B. 6.3 microfarads
C. 6.3 nanofarads
D. 6.3 picofarads
Take a look at the link: http://en.wikipedia.org/wiki/Engineering_notation
It's a special case of scientific notation which expresses large or small numbers as powers of ten multipliers. For example one thousand would be 10 E+3, read as 10 to the plus 3. 10 times, times 10, times 10 = 1000. Similarly one thousand of an inch (one divide by one thousand) would be 10 E-3, read as 10 to the minus 3. What's special in engineering notation vs. scientific notation is the 1000 multiplier or divisor
Note in the wikipedia table the prefixes milli, micro, nano and pico. These prefixes are very common in electronics. Memorize them. Now what is the correct answer?