Lesson 8 component handling and preparation – Vectronics VEC-1500K User Manual

Page 51

Lesson 8 Component Handling and Preparation

1. When reading the value of a resistor, the first two color bands represent the

first two digits and the third represents the __________________.

2. The fourth color band (reading left to right) indicates the resistor's

________________.

3. If you have a capacitor marked "104", its value will be: (A.) .001uF, (B.)

.01uF (C.) .1 uF, (D.) 1.0 uF. [ ]

4. Electrolytic capacitors are polarized and must be oriented correctly on pc

boards. When determining polarity, the shorter lead is always (+ or -)
_________.

5. (T/F) Molded chokes use the same general color-code scheme as resistors.

[ ]

6. The

banded

end

diode

indicates

the

(cathode/anode)

_________________.

7. On an LED, the cathode is the (longer/shorter)__________________ lead.

8. (T/F) Transistors are non-polarized devices that may be installed either

way. [ ]

9. When a transistor is packaged in a metal can, the tab on the side of the case

marks the (emitter/base/collector)________________________.

10. To find pin #1 on an IC (looking from the top down), first locate the

installation

key,

then

move

(clockwise/counter-

clockwise)

__________________________ around the device and find the

first pin.