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WorksheetsTransistors and Triac Quiz
Total questions: 15
Worksheet time: 3mins
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
What makes a TRIAC ideal for controlling AC power?
It can conduct in one direction
It can conduct in both directions
It has no terminals
It is a unidirectional device
What is a disadvantage of using Triacs?
They are not robust
They cannot handle high voltage
They can generate electrical noise
They are not suitable for AC power control
Which component is usually the better choice for working with DC?
TRIAC
Transistor
Resistor
Capacitor
For AC applications, which component is more appropriate?
Transistor
Diode
TRIAC
Inductor
If you need to control current in both directions, which component should you choose?
Transistor
TRIAC
Diode
Resistor
