1. The number of valence electrons in a silicon atom is:

a) Three

b) five

c) eight

d) four

2. When identifying the connections on a large power transistor, a useful tip to remember is:

a) The base is always the middle pin.

b) The collector is usually identified by a metal tab or paint spot.

c) The collector is usually connected to the metal case.

d) The resistance measured between emitter and the metal case will be zero ohms.

3. Which is a type of Electrically-Erasable Programmable Read-Only Memory?

a) Flash

b) Flange

c) Fury

d) FRAM

4. The four symbols are: 

a) Capacitor, Microphone, Potentiometer, Electrolytic

b) Electrolytic, Microphone, Resistor, Capacitor

c) Capacitor, Piezo, Resistor, Electrolytic

d) Electrolytic, Coil, Resistor, Capacitor

5. Name the 4 components: 

a) Photo Transistor, switch, capacitor, coil

b) Photo Darlington Transistor, mercury switch, piezo, coil

c) Photo Transistor, reed switch, piezo, coil

d) Photo Darlington Transistor, reed switch, piezo, coil

6. The signal at the collector will be_____ with the base.

a) Inverted.

b) In-phase.

7. What type of switch is an emergency stop?

a) Push to make (PTM)

b) Push to break(PTB)

c) Rocker switch

d) Slider switch

8. The input used by an antenna or cable to a tv set uses___ frequencies.

a) IF

b) RF

c) AF

d) SAP

9. How does a coil react to AC?

a) As the frequency of the applied AC increases, the reactance decreases

b) As the amplitude of the applied AC increases, the reactance increases

c) As the amplitude of the applied AC increases, the reactance decreases

d) As the frequency of the applied AC increases, the reactance increases

10. A two-times increase or decrease in power results in a change of how many dB?

a) 2 dB

b) 3 dB

c) 6 dB

d) 12 dB

Advertisements