PIC LAB-1 Test 2   <!-- Begin var ans = new Array; var done = new Array; var score = 0; ans\[1\] = "A Tuned Circuit"; ans\[2\] = "Rise"; ans\[3\] = "1n"; ans\[4\] = "0.045Amp"; ans\[5\] = "0.1u"; ans\[6\] = "0.001A"; ans\[7\] = "1.2v"; ans\[8\] = "1mA"; ans\[9\] = "Common Collector/Emitter Follower"; ans\[10\] = "B"; ans\[11\] = "The cathode lead is shorter. It goes to the negative rail"; ans\[12\] = "Between 3 and 35mA, depending on the brightness required"; ans\[13\] = "Inverted"; ans\[14\] = "a"; ans\[15\] = "A"; ans\[16\] = "remains constant"; ans\[17\] = "Cathode Ray Oscilloscope"; ans\[18\] = "microfarad, electrolytic, capacitor, picofarad"; ans\[19\] = "5%, 10%, 1%"; ans\[20\] = "a"; ans\[21\] = "p, n, u"; ans\[22\] = "A Schmitt Trigger"; ans\[23\] = "0.1u or 100n - both are correct"; ans\[24\] = "The voltage across the capacitor"; ans\[25\] = "LOW"; function Try(question, answer) { if (answer != ans\[question\]) { if (!done\[question\]) { done\[question\] = -1; window1=window.open("", "NewWindow1", "toolbar=no,directories=no,menubar=no,scrollbars=no,top=475,left=25,width=320,height=20"); window1.document.writeln("<title>Answers to: 25 QUESTIONS . . . . </title>"); window1.document.writeln("<font face=Arial size=2 color=#FF00cc><center>Wrong!\\n\\nYour score is now: " + score + "<font face=Arial size=2 color=#cc0000><center>The correct answer is: <font face=Arial size=2 color=#000000>" + ans\[question\]); } else { alert("You have already answered that question"); } } else { if (!done\[question\]) { done\[question\] = -1; score++; alert("Correct!\\n\\nYour score is now: " + score); } else { alert("You have already answered that question"); } } } function Assessment () { if (score >= 25) { alert("Perfect Score!"); } if (score >= 20 && score <= 29) { alert("Excellent Work - but not Perfect!") } if (score >= 0 && score <= 19) { alert("You need to do the BASIC ELECTRONICS COURSE. \\nYou will be amazed at how much you will learn.") } } // End -->

Answer the following questions … JavaScript is required!
This test sees how much you know about basic electronics.

1. A capacitor and coil in parallel is called:

• A Tuned Circuit
• A Timing Circuit
• A Delay Circuit
• A Schmitt Circuit

2. When the base is raised, the emitter will:

• Rise
• Fall
• Remain Fixed
• Oscillate

3. What is 1,000p?

• 0.01n
• 0.001u
• 0.1n
• 1n

4. The current in a circuit is 45mA. This is:

• 0.045Amp
• 0.00045A
• 0.0045A
• 0.45A

5. A 100n capacitor can be expressed as:

• 0.1u u = microfarad
• 0.01u
• 0.001u
• none of the above

6. 1mA is equal to:

• 0.001A
• 0.00001A
• 0.01A
• 0.1A

7. 1,200mV is equal to:

• 12v
• 1.2v
• 0.12v
• 0.0012v

8. If a 10k resistor is placed across a 10v supply, the current will be:

• 10mA
• 1mA
• 0.01mA
• 0.1mA

9. This arrangement is called:

• Common Emitter
• Common Collector/Emitter Follower
• Common Base

10. Identify the correctly connected LED:

• A
• B
• C
• D

11. Identify the correct statement:

• The cathode lead is longer. It goes to the negative rail
• The cathode lead is shorter. It goes to the negative rail
• The cathode lead is shorter. It goes to the positive rail
• The cathode lead is longer. It goes to the positive rail

12. The current requirement of a LED is:

• 1.7mA
• 25mA
• Between 3 and 35mA
• 65mA

13. The signal at the collector will be …

• Inverted …
• In-phase …

… with the base.

14. The purpose of the capacitor:

• To pass AC on the input to the base
• To allow the transistor to self-bias
• Block DC from the input line
• To allow the stage to operate

15. The direction of conduction for a diode is:

• A
• B
• C

16. A DC voltage …

• rises and falls
• is a sinewave
• remains constant
• is an audio waveform

17. A CRO is a

• Cathode Ray Oscillator
• Cathode Ray Oscilloscope
• Capacitor-Resistor Oscillator
• Capacitor-Resistor Output

18. These jargon terms mean: (Jargon = language peculiar to a trade)
‘mickey’ ‘electro’ ‘cap’ ‘puff’

• mighty, electronic, capper, picofarad
• microfarad, electronic, capacitor, picofarad
• microfarad, electrolytic, capacitor, picofarad
• microfarad, electrolyte, capping, blow

19. The tolerance bands: gold; sliver; brown, represent:

• 10%, 5%, 1%
• 5%, 10%, 2%
• 5%, 10%, 1%
• 10%, 5%, 2%

20. 223 on a capacitor represents:

• 0.022u u = microfarad
• 22n n = nanofarad
• 22,000p p = picofarad
• All of the above

21. Arrange these in ascending order: n, p, u

• p, u, n,
• n, u, p
• p, n, u

22. Name this symbol:

• A buffer
• A NOR gate
• A NAND gate
• A Schmitt Trigger

23. The number “104” on a capacitor indicates:

• 0.1u
• 100n
• 1n
• 10n

24. What is the multimeter detecting:

• The output voltage of the Schmitt Trigger
• The delay across the capacitor
• The voltage across the capacitor
• The current through the capacitor

25. For the XOR gate, what is the output when both inputs are HIGH:

• HIGH
• LOW
• Can be HIGH or LOW
• Cannot be determined

These are the types of questions you should be able to answer INSTANTLY, if you want to design and build microcontroller projects. If you get less than 20, now’s the time to do the Basic Electronics Course. Try the test again after the course, I’m sure you will “fly” through the answers and be amazed at how much you have learnt.