Transistors and Triac Quiz

What are triac outputs used to control?

• High power DC loads

• Low power AC loads

• High power AC loads

• Low power DC loads

What are the three popular types of solid-state outputs available with PLCs?

• Resistor, capacitor, and inductor

• Transistor, triac, and TTL

• Diode, LED, and LCD

• Relay, switch, and fuse

How are NPN and PNP transistor units described?

• NPN as sourcing, PNP as sinking

• NPN as sinking, PNP as sourcing

• Both as sourcing

• Both as sinking

What type of loads are transistors used for?

• AC loads

• DC loads

• Both AC and DC loads

• None of the above

What is a key characteristic of transistors?

• Slow-switching speeds

• High power consumption

• Fast-switching speeds and reliability

• Inability to act as switches

What type of loads are TRIACs used for?

• DC loads

• AC loads

• Both AC and DC loads

• None of the above

How many terminals does a transistor have?

• Two

• Three

• Four

• Five

What is a disadvantage of transistors?

• High efficiency

• Sensitive to temperature changes

• Low reliability

• Inability to amplify signals

What are transistors typically used for?

• AC (alternating current) applications

• DC (direct current) applications

• Storing data

• Cooling systems

What are the three terminals of a TRIAC?

• Gate, Anode, Cathode

• Gate, Main Terminal 1, Main Terminal 2

• Source, Drain, Gate

• Emitter, Base, Collector