Elenco Practical Soldering Project Kit - Manual (Page 16)

ELENCO ®
150 Carpenter Avenue • Wheeling, IL 60090
Phone: (847) 541-3800 • Fax: (847) 520-0085
Website: www.elenco.com • e-mail: [email protected]
1. The oscillator in this kit is known as a . . .
r A. one-shot circuit.
r B. multivibrator circuit.
r C. three phase circuit.
r D. tri-state circuit.
2. What type of flux should be used in electronics?
r A. Chloride
r B. Organic
r C. Rosin
r D. Corrosive
3. When working on PC boards, what wattage range
of iron is ideal?
r A. 15-40 watts
r B. 50-100 watts
r C. 1-10 watts
r D. 100-200 watts
4. Tinning the soldering tip will prevent it from . . .
r A. heating.
r B. melting.
r C. soldering.
r D. oxidizing.
5. Proper solder adhesion requires that the metal
surface to be . . .
r A. solder free.
r B. clean.
r C. greasy.
r D. cold.
6. Solder wick is used to . . .
r A. remove solder.
r B. solder in small parts.
r C. cleaning the soldering iron tip.
r D. removing flux.
7. A cold solder joint is caused by . . .
r A. a solder bridge.
r B. using 60/40 solder.
r C. insufficient heat.
r D. acid core solder.
8. When two adjacent foils accidentally touch, it is
called . . .
r A. a jumper.
r B. a blob.
r C. a solder hole.
r D. a solder bridge.
9. What ratio has the greatest amount of tin?
r A. 20/80
r B. 40/60
r C. 50/50
r D. 60/40
10. The frequency of the second oscillator ranges
from . . .
r A. 150-220Hz.
r B. 15k-22kHz.
r C. 15-22Hz.
r D. 1500-2200Hz.
QUIZ
Answ ers: 1. B , 2. C, 3. A, 4. D , 5. B, 6. A, 7. C , 8. D, 9. D, 10. D