Basic Aircraft Maintenance Training Quiz on Semiconductors

What is the primary function of semiconductors in electronics?

• To conduct electricity

• To store electrical energy

• To exploit electron behavior

• To insulate electrical circuits

Which material is commonly used as a semiconductor?

• Iron

• Aluminum

• Silicon

• Copper

What is the effect of temperature on semiconductor materials?

• Makes them insulators

• No effect

• Decreases resistance

• Increases resistance

What type of semiconductor is created by doping silicon with phosphorus?

• N-type

• P-type

• Extrinsic

• Intrinsic

What is the primary characteristic of a diode?

• Blocks all current

• Amplifies current

• Allows current to flow in one direction

• Allows current to flow in both directions

What is the voltage drop across a silicon diode when forward biased?

• 0.3 volts

• 0.7 volts

• 1.5 volts

• 1.0 volts

In a P-N junction, what happens when the diode is reverse biased?

• Resistance decreases

• Voltage increases

• Current is blocked

• Current flows freely

What is the role of majority carriers in N-type semiconductors?

• Holes

• Free electrons

• Neutrons

• Protons

Which of the following is a characteristic of a transistor?

• It has two terminals

• It can amplify signals

• It is a type of resistor

• It only conducts in one direction

What is the primary use of a silicon controlled rectifier (SCR)?

• To insulate circuits

• To store energy

• To control high power

• To amplify signals