COMPONENT COLOR CODES TRAINING CERTIFICATION TEST (DVD-164C) v.1

Transcription

1 This test consists of thirty multiple-choice questions. All questions are from the video: DVD-164C Component Color Codes. There are some questions that will ask you to calculate component color bands. See the Component Color Band Charts for 4-, 5- and 6-band resistors; 4-band capacitors and inductors; 3-band inductors; and for surface mount inductors with color dots. You will need these color charts to make the calculations so you can select the correct answer. Your training administrator must provide you with computer access to view the various PDF color charts, or provide color print-outs of each chart. Use the supplied Answer Sheet and circle the letter corresponding to your selection for each test item. If more than one answer appears to be correct, pick the answer that appears to be the most complete response. If you wish to change an answer, erase your choice completely. When finished, check to make sure you have answered all of the questions. Turn in the test materials to the instructor. The passing grade for this test is 70% (21 correct answers), or better. Good luck! 1

2 Answer Sheet Name: Date: Circle the letter corresponding to your answer for each test item. 1 A B C D 2 A B C D 3 A B C D 4 A B C D 5 A B C D 6 A B C D 7 A B C D 8 A B C D 9 A B C D 10 A B C D 11 A B C D 12 A B C D 13 A B C D 14 A B C D 15 A B C D 16 A B C D 17 A B C D 18 A B C D 19 A B C D 20 A B C D 21 A B C D 22 A B C D 23 A B C D 24 A B C D 25 A B C D 26 A B C D 27 A B C D 28 A B C D 29 A B C D 30 A B C D 2

3 1. The value of a resistor is measured in a. henries b. farads c. ohms d. volts 2. Tolerance is a measurement of a. how close a component must perform to its actual value b. how easy it is to overload a component c. resistance in relation to temperature d. ESD sensitivity 3. The color band for tolerance is a. set slightly apart from the other three or four bands b. wider than the other bands c. the fourth or fifth band of the resistor d. all of the above 4. The band that tells you how many zeros to add to the value is called the a. significant value band b. multiplier band c. tolerance band d. temperature coefficient band 5. Kilo-ohm, or K, is an abbreviation for how many ohms? a. 10 b. 100 c. 1,000 d. 10, Meg-ohm, or M, is an abbreviation for how many ohms? a. 100 b. 1,000 c. 100,000 d. 1,000, ,000 ohms can also be expressed as a. 6.5K ohms b. 65K ohms c. 650K ohms d..65m ohms 3

4 8. 4,350,000 ohms can also be expressed as a. 435M ohms b. 4350M ohms c. 4.35M ohms d..435m ohms 9. Use the color code chart to calculate the value and tolerance of this 4-band resistor a. 45,000 ohms, + 5% b. 27,000 ohms, + 5% c. 270 ohms, + 5% d. 260,000 ohms, + 5% 10. Use the color code chart to calculate the value and tolerance of this 4-band resistor a. 600,000 ohms, + 2% b. 60,000 ohms, + 2% c. 6,000 ohms, + 2% d. 600 ohms, + 2% 4

5 11. Use the color code chart to calculate the value and tolerance of this 5-band (military) resistor a. 1,001 ohms, + 10% b. 10,000 ohms, + 2% c. 100 ohms, + 1% d. 1,001 ohms, + 5% 12. The Bill of Materials (BOM) calls for a 3.4 ohm + 1% resistor. What are the color bands (left to right)? a. orange, yellow, gold, brown b. orange, black, yellow, brown c. orange, yellow, black, brown d. orange, brown, silver, brown 13. Use the color code chart to calculate the value and tolerance of this 5-band resistor a. 450,000 ohms, + 2% b. 45,000 ohms, + 2% c. 45,000,000 ohms, + 1% d. 4,500,000 ohms, + 2% 5

6 14. Use the color code chart to calculate the value, tolerance and TCR of this 6-band resistor a. 960 ohms, + 5%, 5ppm per degrees C b. 9,600 ohms, + 5%, 5ppm per degrees C c. 96 ohms, + 5%, 5ppm per degrees C d. 96,000 ohms, + 10%, 10ppm per degrees C 15. Axial capacitors with color bands are always measured in a. nanofarads b. picofarads c. microfarads d. megafarads 16. Capacitors with color bands always have a. 4 bands b. 5 bands c. 6 bands d. none of the above 17. Use the color code chart to calculate the value and tolerance of this 4-band capacitor a. 96,000 picofarads, + 7% b. 960 nanofarads, + 7% c. 96 picofarads, + 8% d. 9,600 picofarads, + 7% 6

7 18. Use the color code chart to calculate the value and tolerance of this 4-band capacitor a. 67,000 picofarads, + 5% b. 6,700 picofarads, + 5% c. 670 picofarads, + 5% d. 67 picofarads, + 5% 19. The BOM calls for a 62,000pF + 5% capacitor. What are the colors? a. blue, red, orange, green b. blue, orange, yellow, gold c. violet, green, red, brown d. violet, red, yellow, gold 20. Convert 450,000pF to nf a. 45nF b. 450nF c. 4,500nF d. 45,000nF 21. Axial inductors with color bands are always measured in a. millihenries b. nanohenries c. microhenries d. picohenries 22. A 350,000nH SMT inductor can be converted to a. 3.5µH b. 35µH c. 350µH d. 3,500µH 7

8 23. Use the color code chart to calculate the value and tolerance of this 4-band inductor a. 650 microhenries, + 10% b. 6,500 microhenries, + 10% c. 65,000 nanohenries, + 10% d. 650,000 microhenries, + 10% 24. Use the color code chart to calculate the value and tolerance of this 5-band (military) inductor a. 820 microhenries, + 5% b. 8,200 microhenries, + 5% c. 82 microhenries, + 5% d. 82,000 microhenries, + 5% 25. Use the color code chart to calculate the value and tolerance of this 3-band inductor a. 9 microhenries, + 10% b. 90 microhenries, + 10% c. 90 nanohenries, + 10% d. 900 microhenries, + 10% 8

9 26. The BOM calls for a.47μh + 2% inductor. What are the colors? a. yellow, violet, brown, brown b. yellow, violet, brown, red c. yellow, violet, gold, red d. yellow, violet, silver, red 27. Use the color code chart to calculate the value of this surface mount inductor a. 25,000 microhenries, + 10% b. 25,000 nanohenries, + 20% c. 250,000 microhenries, + 10% d. 250,000 nanohenries, + 20% 28. A component rated for 3/4 watt can be substituted with a a. 1 watt component b. ½ watt component c. ¼ watt component d. 1/8 watt component 29. A component rated for 75 volts cannot be substituted with a a. 50 volt component b. 100 volt component c. 150 volt component d. 200 volt component 30. Identify the acceptable tolerance substitution for a device with + 5% tolerance a. plus or minus 1% b. plus or minus 2% c. plus or minus 4% d. all of the above 9